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My Audio Journey Evolution, The Final Stage. (Read 75282 times)
red pill sanctuary
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Re: My Audio Journey Evolution, The Final Stage.
Reply #400 - 07/11/25 at 00:46:43
 




Much has changed since the beginning of this year with my system overall. The system that I have now is completely different, and far improved over what it was back in January 2025.


A strong emphasis upon creating the absolute highest quality DAC / Transport source obtainable as second to none, continues to evolve into dramatic improvement within my dedicated professionally built audio room. This room is equipped with full acoustical measures, correctly designed specifically for low frequency control and balance, which it does extremely well. It is only recently with the high end DAC that I am finally hearing the quality factor, and control of this room, now that I have a source, along with an amplifier capable of revealing its potential. What really satisfies me is how all of this becomes the exact balance of all things considered, allowing my custom full range Tapered-Quarter-Wave speakers to reveal the perfection which I carefully crafted within these superb speaker designs. This especially so now that they are upgraded to Tang Band W8-1808 drivers using zero crossover components for optimal simplicity, and overall sound quality. The best crossover network is the one that doesn't exist in a speaker. The only measure that I take is that of a simple Zobel network consisting of a resistor and a capacitor connected in parallel with the speaker terminals to maintain high frequency impedance stability within the amplifier load.


NOTE: THE LOWER DRIVER WHICH IS A HIGH FREQUENCY UNIT, IS NO LONGER USED WITH THE RECENT UPGRADE OF THE FULL RANGE W8-1808 DRIVERS. THE TWEETER DRIVER IS NO LONGER HOOKED UP, SIMPLY BEING STATIC WITH NO PURPOSE. ONLY THE FULL RANGE DRIVER IS ACTIVE USING ZERO CROSSOVER COMPONENTS OTHER THAN A SIMPLE ZOBEL NETWORK.



I have owned and listened to many high end commercial speaker designs over the last 40+ years, with my favorite being full range ribbon line-arrays with bass augmentation, on to the tapered quarter wave designs such as the set I use now. I have built many high end designs using different methodology within speaker design variations for comparative evaluation.  Most speakers that I have heard failed to meet my expectations for one reason or another which just didn't cut it for me. There is too much overpriced garbage out there accepted as quality due to the damn price associated with it.  I find there are limited forms of speaker design which I find acceptable to meet my expectations. The tapered quarter wave design is one of them. My current designs are hand crafted with extreme detail to insure optimal performance. In today's market, these would place easily within the $8000.00 to $10,000 range. I would put them up against any design within that price range with the confidence knowing that they will excel at the top. When I design and build something, I strive to insure conformity to the highest standard with reasonable return on investment in the final product.

When I designed my current models, that process took an extensive amount of time, material, cost, and most importantly, experience based knowledge in order to create the final product which is now the perfect match for my audio room, and most importantly, the ToriiMK3.  I believe in the importance of controlling your own outcome if it is to meet ones strict compliance and satisfaction. The only way I could be sure of this was to design and build my own set. The original concept for this design was created for retail sales through private audio dealers. I decided to terminate that plan, and just keep these as my personal set. I am confident that if I had pursued exposure of these speakers to the dealer showrooms, the listening experience alone would influence overwhelming sales stemming from that exposure to audio purists. Coupled to a Decware amplifier along with the DAC I am using now as a source, I am absolutely sure of that. Perhaps another day. I am retired now. Time has more to offer in the future. Perhaps a new venture in life may be a welcome one.

All of this past time, I was denied the level of performance which these speakers reveal effortlessly. That is until recently, as a result of  proper synergy between system, room acoustics, and speakers. I can also state that concerning the actual performance of the ToriiMK3 amplifier, which there is NO way one can ever truly hear what this amp actually offers without a proper acoustic environment! I don't care if you spent a million dollars on exotic tubes handed down by supreme extraterrestrial beings. It is just NOT going to happen, period!

This also applies to speakers which are capable of conveying that potential accurately, when the setting is correct in order to allow that to happen. The final attributes which advanced my sound quality (which by no means ever considered substandard) are that of the vastly improved source, the room acoustics, exact speaker placement for proper holographic presentation, the C9 holographic generator, ribbon speaker cables, silver interconnects, and the addition of the Zrock3 with all upgrade mods and tube regulation. Improved design power tubes also play a major role in this improvement. The Tung-Sol EL34's are incredible used as a quad set in this amp. These in addition to previous upgrades, brought the quality level up by a very noticeable degree. These replaced the Mullard reissue EL34 quad set which are manufactured in Russia. (both being manufactured in Russia) The Mullard reissues are a very good quality set of tubes with great longevity and value. The instant that I heard the fresh set of Tung-Sols was like buying that new car you always wanted. It is just right, being exactly what you wanted. The old ride served me well, but I like the new ride better.

Before January of this year, what I was hearing in the previous setup was very good, yet soon to find out, very limited within its potential. I have the acoustic setting to bring out the best in musical reproduction. I just lacked the system potential in order to catch up to the strengths of my acoustical engineering that went into this room. People always limit what they "think" they know about something visually, quick to judge what they "see" into a very tidy little box which really is far from reality. When someone views my room layout going by what they ONLY perceive visually, they assume that my walls are simple ordinary drywall construction with some basic acoustical treatment placed around the room. That is completely the opposite of the actual room design. They also "assume" (assuming makes an ass out of U and me) that by visual perspective, my room boundaries are much smaller than they actually are. You have to consider the volume taken up by the placement of full size floor to ceiling acoustic devices which are within the original room boundaries. This and the important fact of my walls not actually being "normal" drywall construction, as this entire surface area acts as giant bass absorption modules which extend the improvement gained from the bass absorption principles placed "within" the room.

Combined, they promote an extensive wide degree of coverage which balances out the room far better than what mere acoustic devices can do alone with standard drywall boundaries. I also use substantial sealed air chambers behind the speaker wall for maximum low frequency absorption and critical control. It is very easy to examine my room layout and assume that it is no different than any ordinary room with a few acoustic devices along the walls. In my case, that is hardly the reality of it. If you go back to the beginning of this thread and see the extent of what I did in order to make this acoustical setting work to my advantage, you will understand exactly what I am discussing here if you understand anything about acoustic science at all. The extensive approach that I took should make things very clear as to how and why my room acoustics work so very well in order to bring out the best of what an audio system can offer to our perception of music.

This room is far more complex than it appears to be. I designed it in a way in which the majority of low frequency control is accomplished "within"  special wall construction, as well as what is "behind" these walls, interacting as a co-factor, effectively accomplishing low frequency control as required. This goal accomplished most importantly by doing so without destroying the ambient clarity and distinction of the higher frequencies. The additional acoustic control factors are placed within specialized, precisely designed acoustic control devices which are crafted for very specific purposes. This in conjunction with required tactics which maintain not only a high degree of sound cancellation from outside of the room parameters, but also for greatly reduced disturbance within the house, beyond my sealed doorway system leading out of the audio room. All windows in the audio room are sealed with dense airtight panels to keep outside noise out, while also eliminating the harsh effects of window glare which totally destroys sound quality very quickly within the room.

Then, the factor of HVAC noise had to be dealt with which I will not tolerate when I listen to music, especially Classical music. The return plenum for the room air was originally cojoined with the adjacent room. This created a pathway for external noise which seemed as if there was nothing to stop that noise from entering the audio room. I had to design and build a custom "hush" box which is in essence, similar to the way a car muffler is designed. The sound waves are isolated as room air is forced to travel through this box, on a return path back to the HVAC air handler. Everything around this is completely sealed off to eliminate any possible noise from entering the room from the adjacent room.

This coincides with the fact that this entire wall is actually a DOUBLE leaf wall built with six inches of airtight space between, utilizing thick ROXUL sound absorbing insulation within both sides of the dual wall system. The walls themselves are made up from combined layers of 1/2 inch OSB, and thick double layers of drywall designed for acoustic control. Every single panel is attached with acoustic sealant and drywall screws, in a manner which there is never a joined seam anywhere, but directly centered upon a wall stud for absolute integrity. There is not a single crack in the entire wall which will allow sound to pass through. A fortune was spent on the amount of sound-proofing sealant which was necessary to accomplish the sound reduction level requirements of this room. Before I even began to apply acoustic engineering tactics, the base boundaries had to be prepared properly if this was all to be worthwhile in the finished form.

I spent (in the spare time I had available), nearly eighteen months of labor building this entire project by myself. My job requirements led up to 70 hours a week in my schedule outside of the home. Finding time off was always a challenge. Time to relax was never an option, and sleep was always limited. With all of the custom large scale acoustic devices which I designed and fabricated for this room, plus everything that went into the actual tear down / redesign, and build of this new room, specifically designed for optimal acoustics, and sound reduction, it would be easy to factor a total cost of over $40,000 to hire an acoustic contractor in order to accomplish the very same thing. (that is if you can hire one in your area and he is any good)  I have a strong belief through experience that if I want the job done right the way I expect it to be accomplished without shortcuts or questionable work quality, then I must do the job myself, controlling every step of the way including final inspection. I strive for strict compliance within my endeavors, both within my technical aviation career which I am now retired from, on to my own personal tasks and objectives. This audio venture is no exception to that rule.



An acoustic environment  is bound by proper design elements which must be built correctly if the time and expense is worth doing. The end result is only as good as the work and materials that went into the project.  The "disaster" factor is when you spent all of that time and money just to realize that the end results are minimal for improved acoustics, rendering failed control of the room because the design is flawed and incorrect. Do your homework, and don't assume anything based upon what someone else says, especially if that individual has zero experience with acoustic devices, let alone proper usage of them. You have no idea what you are missing in your music until the day that you finally listen within a properly designed room built for optimal acoustic control.

Caution: Before reading into the next paragraph, I want to establish and maintain a set foundation in order to clarify the full extent of what defines maximum acoustical benefit for optimal music enjoyment.  I do not want anyone going off in dismay because they feel intimidated or downplayed by the following statement. Look, I completely understand and most importantly, respect the fact that so many audiophiles who are serious about music presentation are at a standstill regarding this for many reasons. Sure, it is easy enough to understand that there are situations where room acoustic modifications are not allowed, or even remotely accepted as a viable means for enhancement. I get it, and I just want to excuse those of you who would like to have the benefit of acoustic control, perhaps on the level which I have attained, but live in the reality for which this concept is simply non-approachable. So yes, please excuse what I comment on as merely a general outlook for which the grand scheme of things benefit from. If you at least have a large room with proper speaker placement, then you are at a point where it shall remain the best of what it is without adding acoustical treatment. If you are truly happy with the results, then you are at a point of satisfaction. In the end, this is what really matters.

On that note, yes, there is attainable benefit for upgrading equipment by way of exotic tubes and capacitors regardless of the acoustic environment. My point is that this condition is limited. For one that wants the best possible end result, what I am discussing here today is in direct correlation with that goal. I realize that not everyone has the same goals or outlook on what things should be. So I ask that you just take things at face value and try to put it all in neutral perspective. My point is to not limit yourself if you don't have to.



Continued next post.





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Re: My Audio Journey Evolution, The Final Stage.
Reply #401 - 07/11/25 at 01:15:56
 


Continued from previous post:



Alright, moving on:

For those that dwell upon the refusal to accept the true benefits of acoustic control, and what it means to your perception of music, I want to make clear that one can't get around the acoustical factor by somehow magically fixing, or overcoming bad room acoustics by way of expensive tubes, capacitors, a more expensive amplifier, mystical speaker cables powered by plutonium, or even that special little cute box containing the holy grail captured in the dark corners of the Amazon. You simply are playing the part of your own foolish nonsense with full acceptance to its questionable validity if you ignore the basis of that truth. Yes, to an extent, these modifications can, and do provide huge beneficial gain within a system, but limited in comparison to how this interacts with proper acoustical measures in which to reinforce the magnitude of the overall gain. Are you really benefiting from your investment with maximum value?

For instance, (and there are those of you who know what I am referring to) all of the graphene in the world is never going to rectify standing waves, but I suppose the right selection of graphene "might" do the trick to a limited degree for something in the power supply perceived as an improvement. ( I shall remain neutral on that one until I hear this for myself)  I live in an area where power is clean, and unaffected by the noisy interference which living in large cities create. I am fortunate enough to not be hampered by dirty power or inflicted by hum which is a very common issue for many.  I will give it the benefit of doubt since I myself have never experimented with it. I just find it to be a bit questionable as something I will require proof before I put much faith into it. I will reserve my take on the actual benefit until after I have actually tried it myself. I am not holding my breath in anticipation.

I doubt that much will motivate me to embrace this graphene concept as something that will actually make a worthwhile difference in my system. Perhaps it might, but not going to experiment with something doubtful that costs way more than it should, especially when I can benefit so much more with other practical means.


Graphene is formed by way of a honeycomb lattice, using singularly layered carbon atoms within a two dimensional matrix. The use for graphene has high potential for electronics and energy storage.



I am not knocking its value, just trying to reinforce that there are so many more beneficial ways at less expense by way of acoustic control, even in basic form if done correctly. I am sort of joking here at the expense of this concept, but I use it as an example to where I am leading with this. Hey, just think how great that graphene material will sound once reinforced with a great room for which to bring out the best. Your jaw just may hit the floor as you try to assimilate the impending comprehension of the unknown as a new reality awakens your senses. Try it, don't deny it. I do hold a sense of curiosity for which I am willing to experiment. As extreme as it presents itself by way of actual validity, I do put weight into the opinions of those who I trust, and have themselves laid claim to the positive aspects of this material. If not for that, I would pass it off as pure nonsense. On that note, this remains a possibility for which I will be the Judge for my own needs.

Hey, I heard that there are cute little "magic" blocks made out of mystical rare material which was discovered in a small part of the Amazon. Just pay the mere price of $1200 for these little miracle cures and hey, they won't even take up much space. Just like magic, your acoustical problems will vanish!  Just make sure that you place them around the room using proper Feng Shui tactics.

The effect of this illogical nonsense based upon what is really worthless, yet accepted by that of sheer expense and false promise is once again, a false delusion identified by a psychological term which describes the tendency to justify an expensive purchase by believing it is effective. This delusional belief for which something fails to deliver its intended purpose, although accepted as what it is claimed to be, is called the "sunk cost fallacy".


Sunk cost fallacy derives from a cognitive bias. The accepted delusion becomes evermore comfortable within this type of mindset, regardless of the fact that there is absolutely zero relevance within the actual gain, at least not in regards to solving the actual core problem. The factors of investment create a web of reinforcement within that mindset of "reality" which as chosen to believe, have proven to be the right choice, at least to the conflicted perception of that mind. Throwing cash into a fire in order to smother the flames will only intensify the sting of the burn. Just imagine how a fire extinguisher may have been handy in that situation.  100 percent effective with reasonable cost versus actual gain.

This is really based upon  when the consumer denies the sensibility of proper judgement, substituting acceptance of wasted resource as legitimate, due to the embarrassment of illogical expenditure. This evolves into believing actual gain, although there is a complete lack of evidence to support the actual worth of the investment. This factor is referred to as "loss aversion", which is the result of denial towards loss, rather than accepting the reality of the truth.

This leads to "conformation bias" for which one leads the focus of existing belief in direct disregard of evidence for which is completely rejected. To support that personal belief, any irrational shred of what is perceived to be positive, regardless of the truth, simply becomes the willingness to ignore, and downplay undeniable negative aspects which couldn't possibly be any more revealing within a stable thought process of assimilation, better known as logical approach. This leads to the need for others to support this belief who also are inflicted with this form of deception. Surely, if there are others who will jump off the cliff of reason with you, then there must be some justification for all of this after all. Everyone sleeps better at night. Be careful, the wolf passes by your door like a ninja in the night, just waiting.


Hey, I have some great property in the Everglades which you will love. The property is selling fast, so get it now while you can. This will be the best investment you ever made, I promise. Good luck building those expensive condo's on your new property.


Just to be clear about what I stated above, make sure that you fully understand the depth of what I am stressing here as regarding the importance and validity of proper room acoustics.

When, and ONLY when a room has established a reasonable degree of acoustical treatment, then that is the point where the upgrades should lead to the amplification, source, and speaker factors, for which now you can actually extract, and expose the actual rewards of these upgrades with absolute clarity and confirmation. You will find that your need to upgrade your equipment takes on a different perspective, rather than trying to make a system sound good in a room with poor acoustics by way of wishful thinking. There is as much chance of that as a biological male becoming pregnant.

 If one continues to focus on the engine of a sports car, ignoring faulty suspension components, will sheer horsepower ever effectively overcome this problem? Of course not. This simple analogy is in complete relation to what can be expected from an audio room associated upon a high degree of variables, regardless of how silly it sounds. Failing to understand this is a doorway to ignorance which just continues to fuel confirmation bias. I don't care what the excuse is, the outcome is always governed by physics leading to how your room parameters affect your music.


When I make changes to my audio system now, I know without a shadow of doubt that what I hear, or expect to hear would likely have been reduced, if not completely unnoticed if this room was the same room it was before I remodeled it for accurate acoustics. Trying to hear music with any regard to quality and accuracy in this same room before I modified it was like throwing a boombox into a empty metal trash can with nerve wracking noise being the result, which could actually serve as punishment.

Trying to find any degree of acceptable listening quality from this situation was at best, futile. It took a massive amount of acoustic measures to make this room what it is today, something which is as enjoyable to the senses as that of a live concert hall designed for the ultimate listening experience. It is not difficult to find perfection within my total system with this environment as the supporting factor.

What I accomplished within these limited room parameters borders upon near impossibility, presenting the most difficult in design challenge. Because every step of the way during this build process was accomplished through knowledge, experience, hard work, determination, and the premise of proven acoustical measures, I had the confidence of making my goal which surpassed even the most doubtful of expectations. I love a good challenge. Nothing is more satisfying than to conquer surmounting odds stacked up against your probability of success. I took that challenge and defeated it's evil influence. I rule the outcome of this audio room, rather than accepting its limitations for which I surrender my hopes of quality music, into a weak state of compromise.


What is the difference between a so-called acoustics professional and myself? The acoustics "professional" will simply tell me that my goal in this room can't be met. I on the other hand, defied his egotistical shortcomings, and made my goal happen! These quacks are not all they profess to be. And on another note, don't waste your money overpaying these people. Even though they try to tell you that their products are the gateway to the stars, for a premium price they might actually take you to the backdoor leading into the dark alley. Let's just hope that you don't get mugged in the shadows of the night. You can do just as good as they claim to be, perhaps even better if you have the skills and knowledge to make it happen. The best part, if you are not afraid to get your hands dirty and endure some long hours of hard work, then you shall reap the rewards at a fraction of the price. How do you think that these contractors started out? They were just like you and me who took their diy experience into business practice, making a fortune selling it to others with deep pockets, those who are absolutely clueless concerning the working parameters of acoustical devices and architecture. I have a strong distaste for immoral contractors. The world is full of them.


Every time that I listen to quality music within this acoustic environment under my direction, I get this fulfilling satisfaction which calms my senses with a feeling of real accomplishment, one that defies the odds. The long path of obstacles which brought me here reflect upon my thoughts when I listen to music in this room. I never forget how terrible the situation was before I ever considered transforming this room into something much better.  I can only say that it was all worth it ten times over. I would have never been this pleased within my audio indulgence if not for the outcome of my current acoustical setting. As a matter of fact, the audio room would have never worked out for me, as it was far from being good enough to earn the honor of being audio worthy. The impossibility factor only lies within the acceptance of defeat.

I have allowed the acoustic train to run off course for some time now on this thread. I need to reestablish the importance, and the direction for which this thread is based upon. Although this entire project encompasses everything involved within the process of my audio setting, and most importantly, the quality of music channeled through its intended transparency, the main focus is to always maintain the fact that proper room acoustics are the hub which everything rotates in perfect harmony. Do you want to hear music in the highest form of natural clarity and realism? Then do what it takes to make it happen.

I simply spotlighted this article to maintain a refreshed view of why I started this thread in the first place. The evolving level of equipment upgrades is an equally important factor which will continue to be discussed here as well. I can't pull the cart around without a healthy horse.

As I get very near to finishing the new upgrades in my system which are currently underway, I am also considering additional methods that I may employ within the room which will further enhance, if not fine tune my current acoustical level. When I listen to music, this becomes a nurturing embrace for which I create in-depth thought concerning advancement into the next stage. I have developed a strong visual of what this next level of improvement resembles as I imagine it in place within the room.

I want to focus heavily upon the front portion of the room where the speakers reside. I also want to expand the use of Ternary diffusion concepts as faceplates which are to be mounted across the front of my large free rolling bass absorption units. These flank the direct first order room reflections which instead of just being absorbed, I intend to preserve and transform this into a useful pattern of diffusion, creating a proper balance between absorption and diffusion, rather than simply eliminating the reflection itself. I want the entire front wall surface to be diffusive in form, from floor to ceiling.

Due to room length restrictions and the necessity of a much larger room space to effectively use quadratic diffusers, that leaves me with the only option of using Ternary principles to obtain any chance of proper diffusion within a short return space to my listening position. Ten feet is the minimum, dependent upon the design parameters of the QRD involving the length and depth of the prime number sequence. That won't work for my situation. *QRD stands for Quadratic-Residue-Diffuser.

Continued next post:
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Re: My Audio Journey Evolution, The Final Stage.
Reply #402 - 07/11/25 at 01:36:24
 

continued from previous post:



I have built so many large scale prime 13 and prime 23 QRD's that through experience, I know how great they perform when used properly. I only wish that I could use them in my current setting. The Binary and Ternary concept is exactly what is ideal for my room configuration. I knew that QRD's were never going to be a part of this room. Such an effective and powerful acoustic tool. Just not going to work for me at this time. The use of prime number QRD's in full scale fashion would always be my first choice if the room dimensions allow for them. QRD's are very complex within their workings.

The fact is that they need room for expansion of the waveform in which there are several stages of bloom taking place before the final form of expected diffusion transpires within the room. If you are seated prematurely within that time period for the waveform to bloom, then guess what, you will never hear the outcome of its correction factor accurately.  It will still be better than using no acoustical control at all, but just not in the range of full effectiveness.

The strict control of "lobing" must be adhered to when using multiple repetitions of the QRD diffuser. Lobing is a very unacceptable form of distortion which should be kept at bay. One of the most effective methods to reduce that anomaly is through use of inversion. The start of cycled patterns which use a mix of  "in-phase" vs "out-of-phase" strategies are a very good way to remedy this situation with good results.

On the other hand, as an alternate solution in a smaller room, the choice is simple and one that offers very strong performance with highly obtainable gain. That choice involves the full implementation of Binary and Ternary tactics, Ternary being an advanced, more complex form of diffusion with less artifacts.

The bloom range for this type of diffuser is much shorter, allowing for a full cycle of maximum benefit within a three foot sitting position in direct relation of where the face of the diffuser resides. This makes for a completely compatible system to use in a situation such as mine. Everything factors upon the equation. Mathematics do not lie. The results speak for themselves.



Moving forward:

As I stated, this thread is more than just acoustics, although that is the primary basis for all of this evolving as one setting. As has been the focus for some time now, the factor of improvement gained by component upgrades are in direct correlation with the acoustical factors becoming the stage which makes all of it worthwhile in maximum perspective.

What this means to me is that I have the confidence knowing that poor room acoustics are not going to mask or restrain the actual benefits I hear in component modifications. The difference is quite substantial to say the least. I consider it a waste of time and money attempting to gain something from upgrades without proper acoustic control, which I know will always be limited by the room itself. Whether or not one accepts this situation, fine, but that doesn't change the reality of the truth.

Now that I have the room no longer being my "Achilles' heel", I can simply focus on how profoundly my system takes me to my place of "peak experience" within the absoluteness of music and its infinite expression, flying high and free as the music becomes the force which frees me from within.


The term "Peak Experience" describes a phenomenon as an experience perceived as beyond that of "normal" life, thus perpetuated through the grasp of joyful satisfaction.

This is the premise for which that feeling of disembodiment from the restraints of time and space becomes your awareness, as if all powers that be are suddenly within your grasp of acknowledgement within the universe. This is the point where you allow yourself to escape the pressures of life, and the nonsense which abounds your reality. These almost spiritual moments are the very essence of mental therapy for which leads to a much improved grasp upon your senses pertaining to who you actually are, and what the meaning of one's existence really conveys.

In other words, music becomes the medicine which cures the illness which life can instill within you. What you feel simply becomes harmonious within a complex nature which suddenly, one becomes comfortable with acceptance toward a refined reality.



But I'm guessing that you knew that.  And that is why I need my audio experience to be the ultimate means for my escape. No exceptions.



Next, I am going to take you onto a journey back in time to the start of this acoustic project, as nothing more than a mere refresher course in review. The following images are that which all went into this project from back in 2018 on up to the present time. It has been a long journey, so close to my finished goal, yet still a ways to go.



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Re: My Audio Journey Evolution, The Final Stage.
Reply #403 - 07/11/25 at 02:04:24
 

In the beginning:


If you want to see any of this in full detail which will answer any questions you may have about this room, please go back to the beginning of this thread and start from there. It will all make sense to you by doing so. You may even learn something!

































The next images displayed advance into the actual wall build up of complex layers in a airtight sealed fashion of solid integrity.

continued in next post.



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Re: My Audio Journey Evolution, The Final Stage.
Reply #404 - 07/11/25 at 02:35:56
 
 

This stage marks the beginning of what it takes to make an acoustic worthy wall system.





















































This brings the project forward into the audio room interior.




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Re: My Audio Journey Evolution, The Final Stage.
Reply #405 - 07/11/25 at 02:55:27
 

Now for the construction of the audio room acoustically enhanced walls.



















The following images lead into the construction of the double leaf wall built to be soundproof from the adjacent room on the other side of this wall. You will note the HVAC hush box build within this wall structure. This provided complete isolation and noise transmission from the air exiting the room back on its way to the air handler downstairs.



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Re: My Audio Journey Evolution, The Final Stage.
Reply #406 - 07/11/25 at 03:28:37
 


This is the build-up of the soundproof double leaf wall and HVAC hush box.

























And now back to the forward wall where I install the sheetmetal face-plates which cover the inwall absorber modules. These act as diaphragmatic absorbers which will be flush with the drywall mounted onto MDF frames.




























And now on to the rest of the room.




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Re: My Audio Journey Evolution, The Final Stage.
Reply #407 - 07/11/25 at 03:57:03
 

The work continues with so much more to do before the actual acoustic control devices can begin construction.

The details that you don't see here are important things such as soundproof light switch housings, and electrical outlets before the walls can go up. All of these details are clearly shown in the back pages of this room build.









































Finally, it is time to focus upon the acoustic devices which will fill this room around the entire perimeter, including the ceiling.

The room is now ready for treatment.




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Re: My Audio Journey Evolution, The Final Stage.
Reply #408 - 07/11/25 at 04:37:18
 


Alright then, now comes the time to have some real fun and get to the nuts and bolts of acoustical devices.

Again, I show extensive build detail and explanations for the build of these devices. Just go back to review those early pages.












































If you want to see how that I built the diaphragmatic corner bass absorbers, then again, go back and review the pages covering it. I show everything in close detail how to build your own.


And now for the final stage. It is time to place these complex devices within the room properly to gain maximum acoustical benefit from them. The room is very close to being finished and music ready.





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red pill sanctuary
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Re: My Audio Journey Evolution, The Final Stage.
Reply #409 - 07/11/25 at 05:43:36
 

And now, the finishing touch!






















In the next image, I "blanked" out the lower high frequency drivers to show how these speakers would actually look if I had used the full range Tang Band W8-1808 drivers initially. The previous drivers required a high frequency driver which now is just static.


So, no magic, no trickery, just a bit of artistic variance to make things clear.





































































































That about wraps things up for now. This brings the audio room up to date with the latest upgrades and improvements. There is still much more to come.


Now that wasn't so hard, now was it?



1-800-ACME


Smiley


Cool








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Re: My Audio Journey Evolution, The Final Stage.
Reply #410 - 07/18/25 at 17:07:07
 
Hey RPS. Sorry so long with these Torii film cap/bypass pics. I lost my first post attempt in a crash, now a long time ago, and have lost time since! Now heading out for a trip, and lots to say about these years of modifications, but.... so I figured I had better at least get some pics out to you and maybe will have internet in some places on this trip when I can write more.

The first image is from 1/2017, several months after starting to work inside the amp. All caps then were ones left from my HR1 tweeter cap and bypass experiments, what got me started with bypassing. I am including it as it allows you to see the base amp design better. Looks like I had replaced the coupling caps, with Jupiter Coppers, and moved the Jupiter HTs that were coupling caps to bypassing, which helped refine the Obligatos bold, sometimes nice, but sometimes hard and concentrated sound. All of these caps have since been replaced.



The 2nd photo was August of 2020. Lots of changes and additions by then, most things if you look carefully, and this shows the 1st electrolytic replacement.



And finally, a recent picture below, with just a few changes from a few years ago. I had been using a 300B and an 300B/845 for a few years, and brought the Torii back in a few months back. It is sounding amazing. If you study this image you will see there are lots of original parts upgraded, most cables, wires, connectors, all caps and resistors....

The MKIV had 4- 47uF electrolytic caps, the two in the middle bridged. So to fit it all in, I ended up with a 85uF Clarity TC, with a 3.3 Jantzen Superior I had around, which sounds good in this arrangement. With bypasses guessing close to 90, so a little less than stock. Before this, having figured out that capacitance value effects sound, at some point, more, tending darker, fuller thicker, more intense... and less, faster, more immediate, more open, more relaxed... I found the middle ground the beauty place. This was showing up with bypassing, which led to seeing what lowering the coupling caps to 0.082 Miflex Copper Oils from 0.10 Jupiter Coppers would do. Then I found 4-40uF Jenson "for audio" electrolytic caps on sale, and reduced the whole PS by 28uF. Both were great moves for me, more inner space, more nimble and less prone to thickness and bloat, just so, making bass deep and fast.

Then, the purple 15uF Clarity "1st cap" in place, replacing the 45uf Clarity TC connected to the rectifier, choke and transformer, I pulled 3 pair of Jenson 40uF electrolytic caps. Then I moved the 45uf Clarity from the rectifier to the input beginnings, and replaced the bridged electro pairs (then 80uf) with an 85 Clarity. Interestingly, with a bit more capacitance at this point, it was too lean, why I added the Superiors to the 85 Clarities. So a lot of changes from the electros I was using to these particular films.

As usual though, everything matters. In the CSP3 I tried replacing the 40uf Jenson electrolytic caps I had moved there, two per channel, with some 45 or 47 Black Solens (can't find them to check), it got too heavy, full and slow... notably more so than when I had 47uf stock electrolytics there. So electrolytic to film is not always "better," different caps, and values within a given cap making notable differences.

OK, hope this helps. To your question, I have not tried Mundorf Tube caps, choosing Clarities at the time and happy with them. Vague, but my memory was that Clarities tended more neutral and transparent, less color... but a long time ago. Tending to trying Clarities, I think it was Dave as Zenwave who finally helped me make the decision.

A recent change on the Torii was integrating what I thought was a variation of Steve's grounding of the Torii MK5. After lots of experiments with grounding over the years, trying to solve some relatively minor hum. But with my more efficient speakers (99dB) it became more intimidating. This ground setup did not help the hum much, finally seeming to be more related to tubes and several pre-stages progressively amplifying their own minor hums. But this sounds better, including the Superior cap connected to the amp plate (top left of this image below), making the original smaller cap a bypass, and with new larger wires (yellow), the sound was more complete and solid without being too dense, harmonic content also better defined but still very complex. I wonder how much of the sound improvement is the yellow milspec silver on copper in teflon wire...higher gauge wires by a fair bit than those I had used in interior signal cables I made and had used for some time. I do tend to prefer the ground side of ICs to be a bit higher gauge.

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All Modified: PSA-P5>DIY Strip/Shunyata Defender, Verifi...>RevolutionMacMini/Amarra-KTE Singxer/MP-DX DAC/ZR2/Zstage/CSP3>Torii IV>Omega SAHOM/AudioSmile Tweeters, SVS Micro3000>mostly DIY PCs, ICs, USB, I2S, Speaker>Stack and aluminum w ball bearing feet...
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Re: My Audio Journey Evolution, The Final Stage.
Reply #411 - 07/18/25 at 20:29:18
 
Hey Will,

No problem with the wait. I want to thank you for posting this very valuable and informative information concerning the amp upgrades. As usual, you went all out with the very best! I wish I had your budget for audio mods. By looking at these images, and knowing what these mod components are valued at, It seems that your amp here has easily tripled in value with these current mods.

After I get my amp upgraded the way I want it, I would love to hear your amp alongside of mine in my audio room for some long critical listening evaluations. (wishful thinking)  I am really curious as to what your current amp configuration actually sounds like, but I have a very good idea of the improvement gained. (most likely far superior to any other Torii built, or at least on the same level with the very best ever upgraded) I would love to hear that amp in my current room setting. I think it would perhaps enlighten you as well.

Is the amp pictured here a ToriiMK4 model?  I know it is not a Mk3 like mine. Not unless you completely changed the layout.

As for my upcoming upgrades to the ToriiMK3, I just ordered all of the upgrade capacitors to do a complete overhaul with premium grade components. There will be zero electrolytic capacitors remaining in this amp. Everything gets upgraded to high end parts of tighter tolerances. With the exception of the transformers, all other internal wiring will be replaced with 7N high purity 16 gauge silver/Teflon wiring. I am ordering a set of machined solid copper speaker posts and RCA female plugs today to replace the stock ones. I will need to begin construction of a deeper amp base soon before I start the process. Just like yours, the new mods will require much more room.

I have a proposed design for a custom wood two part base for this amp which will be finished in high quality exotic wood veneer. I have about $1200 worth of expensive wood veneer just collecting dust. This and my new sub enclosures will make good use of that.  I think I have enough left over of the species that went into my custom speakers. That would make a matched set. If not, I have an unused roll of a species with a very light color. I really need to find a use for this veneer.

I hate the uncovered look of the ToriiMk3 with those ugly transformers showing. I have to remove them just to straighten out the base legs which whoever assembled the amp, did a poor job by installing two of them crooked with the legs bent, making the bells lean to the side. This has irked me for a very long time. When I received this amp, it left a bad impression in my mind. This will be corrected when I reassemble the amp during the upgrades. ( the initials of the assembler are inside the amp dated back to May of 2012) This should have NEVER been allowed to pass quality control.  I mean REALLY?  Between that and that noise issue I had for the longest time resulting from a contaminated volume pot, this amp was something that I absolutely regretted buying until I fixed the noise issue. I was not exactly impressed. Oh, and did I mention those cheap Chinese rectifiers which lit up like a Tesla coil when turned on?  I sure hope that things have improved since my amp was built. For the price these demand, I would surely hope so.

I am designing a hinged top with gas struts rated for the weight of it to cover the top anyway. The front will have a honeycomb steel screen to allow air cooling, with a direct view from the forward top half, covering the sight of these bells. I only want to see the tubes and controls. The lid will simply hinge backward for easy access, preventing pets and kids from playing inside, or getting burned if that were ever a situation. This protects valuable tubes from being touched or broken. Everything will be constructed using premium hardwood, then finished in exotic veneer. Going to be large and heavy, but I don't care. I am going after beauty and durability when finished. That is what matters the most. I have designed a custom logo to make it unique for the finished touch.

I will reveal the entire parts used to upgrade this amp very soon. I still have some parts being shipped, so I will wait until I get everything prepared for this operation. I hope to have the amp finished within the next thirty days.


I went with something far superior to those overrated, equally overpriced Mundorf TubeCaps.  The new ones that I ordered for the power supply are rated at 700v @ 5% tolerance. Polypropylene film and foil types for optimal sound quality and integrity. These will be bypassed with 0.1uf 1000v Russian military K75-24 foil in oil caps, along with WIMA FKP1_1250v 0.01 film and foil caps. I have something very special with tight tolerances for the coupling caps to make a huge improvement there.


How long will you be gone on your trip? We shall discus this more when you return.

Hope the music worked out in some manner for you. I'm sure you found something useful from that collection.

Be careful and enjoy your trip.

Again, thanks for the upgrade input. You are welcome to add more when you get home.

Later.


Smiley

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Re: My Audio Journey Evolution, The Final Stage.
Reply #412 - 07/21/25 at 02:48:47
 


After re-evaluating the possibility of designing, and building some very effective QRD modules for use in my audio room, I came up with an ideal diffuser model which WILL work within the parameters of my audio room at the distance I require for proper operation.

The measurement of the unit wells determine how low the frequency spectrum will be effected by the diffuser. The lower the frequency, the more distance required.

With that in mind, I do not require anything below 1000 Hz because I have plenty of other devices around the room to accomplish that goal, primarily my large Ternary diffuser at the rear of the room, which controls frequencies below what I need for the front of the room.


My goal is to achieve a diffuser with a depth no more than three inches, with the ability to create full diffusion in less than six feet forward of my listening position. The frequency range that I want to control falls within 1K and 6K.

What I came up with is a model which will easily do that, making this design a prime (no pun intended) candidate for my needs in this situation. My working parameters have now changed which will allow me to use these QRD models.

This design derives from an advanced N31 +8 element which is based upon the prime 31 well configuration.

This design will scatter @ 1000Hz, and diffuse @ 2000 Hz. The high frequency cut-off is @ 6880 Hz..

The well widths must be kept at one inch to avoid viscous loss. True diffusion frequencies equal 2K, 4K, & 6K.


A diffuser which will diffuse within this range of 1K and 6880 Hz is exactly what I can use for the front of my room behind the speakers.

Now for the best part, this does so within a range of LESS THAN TWO FEET from the diffuser face.  That allows me a full spread of diffusion without artifacts at my listening position, with plenty of space remaining. This design meets ALL requirements.

My plan is to build nine of these units for stacking, which will give me maximum coverage floor to ceiling. It is important to build a few using the inverse of the well depths in order to provide a proper Barker sequence, which controls lobing very well by doing so. I will use a full frame retention system to keep the diffusers in place and stable for safety.


The Barker sequence calls out for two normal well depth diffusion modules inline, followed by an "inverse" well depth diffusion module. These will be stacked three to a row, three rows high. The next row will start with the inverse module followed by two normal modules. The next row is the opposite again.


The addition of quadratic diffusion at the front of my room will advance the spaciousness of the room by quite a large degree. Everything is going upward a few notches.


This opens the door for the possibility of QRD implementation in a smaller room, as long as the design works within the limits of the room space. This design absolutely complies with that requirement.

So this adds to yet another major project which I will have to find time for in the following months. This would make a good winter project. It will certainly be worth it. The details are worked out, the plan is ready to build.








I created an artistic image showing a mock-up for this proposed design implementation within my audio room. This is a clear representation of how things will look after these are built and assembled in place.




This image shows the correct sequencing for the Barker code, which works to greatly reduce the negative effects of lobing. This is the way proper standard, plus inversion tactics are used for best results.


The design of the N31 sequence in normal mode always starts with a "0" well for optimal mating with the previous QRD module. (zero to thirty well sequence)





Smiley




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Re: My Audio Journey Evolution, The Final Stage.
Reply #413 - 07/23/25 at 15:56:30
 
Hey RPS.

Having internet right now, I read over my #410 reply touching on my Torii modifications, and found a pretty bad mistake. I am sorry I was not able to correct it before the modify button went down. In the third paragraph above the last Torii picture, I said "As usual though, everything matters. In the CSP3 I tried replacing the 40uf Jenson electrolytic caps I had moved there, two per channel, with some 45 or 47 Black Solens (can't find them to check), it got too heavy, full and slow... more so than when I had 47uf stock electrolytics there. So electrolytic to film is not always "better," different caps, and values within a given cap making notable differences.l"

I can't quite work out how I wrote it, knowing the CSP3 insides intimately... or why I did not notice it before posting, but, stock, and now, there are two main electrolytic PS caps total in my CSP3, not two per channel.

Yes this amp is a MKIV I got pretty early on as they came out. Relative to your thoughts on value, it is hard for me to figure in numbers, like people  saying something is some percentage "better." My mind does not seem to work this way, I think because the values of what I need sound-wise can be read so many different ways. This amp being tuned so regularly, over so many years, improvements and decisions were incremental and progressive, and I am not sure how I would approach it now... but it does make it additionally challenging to gauge improvements. And for me the last five or ten percent are probably worth as much or more than the first 90-95, the more subtle and fine resolution and speeds being so important for making the rest sound complete and real.

Relative to cost "value," most things bought on sale, or decent prices from ebay sellers, the actual cost of modifications would be interesting to figure out, but when I was half-heartedly tracking it, it was nowhere near the cost of the amp originally. People have asked, and I have hoped to do a modification thread talking about the projects I have worked on, and if I ever get time to do that, it would be cool to estimate rough costs.

Thinking about your Torii MKIII coming with bent transformer legs (if I understood your post correctly), it seems highly unlikely that it left Decware like that to me. That would be obvious to Steve and crew in QC. I wonder if your amp experienced a high G drop in shipping, enough for the weight of the transformers to bend the feet?

Sounds like you are going for a lot of changes, and I hope it sounds great!

Good luck,  

Will
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All Modified: PSA-P5>DIY Strip/Shunyata Defender, Verifi...>RevolutionMacMini/Amarra-KTE Singxer/MP-DX DAC/ZR2/Zstage/CSP3>Torii IV>Omega SAHOM/AudioSmile Tweeters, SVS Micro3000>mostly DIY PCs, ICs, USB, I2S, Speaker>Stack and aluminum w ball bearing feet...
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Re: My Audio Journey Evolution, The Final Stage.
Reply #414 - 07/23/25 at 17:08:41
 
Thanks for the update and refresher on your audio room RPS.

Pretty amazing. The addition of the new QRD panels to fit your exact room specs look to bring the fidelity up another notch, which is amazing since the bar is already set very high. (cool rendition of the future look btw...)

I'm looking forward to your review once they're installed.

Good luck with your room and equipment upgrade fun.
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