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Loudness imbalance in speakers: (Read 6836 times)
Mark
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Re: Loudness imbalance in speakers:
Reply #15 - 11/27/12 at 01:56:06
 
I always wanted to make a pair of dedicated stands for these speakers from the very beginning... That way I could experiment with placement... Now, I have little choice in placement... Well, none, actually...

Also, I'm toying with the idea of getting the MG 944s... That would change the whole equation here...

Note: You wouldn't believe just how good these Tang Band speakers sound... I would hate to give them up, really...

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If a rabbit defined intelligence the way man does, then the most intelligent animal would be a rabbit, followed by the animal most willing to obey the commands of a rabbit. -Robert Brault, writer (b. 1938)
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Mark
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Re: Loudness imbalance in speakers:
Reply #16 - 11/27/12 at 02:04:14
 
Oddly enough, my avatar kind of mirrors the problem I think I have... The early reflections from the nearer (rt.) corner, plus the extra wall behind the right speaker may be causing the difference in percieved loudness...
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If a rabbit defined intelligence the way man does, then the most intelligent animal would be a rabbit, followed by the animal most willing to obey the commands of a rabbit. -Robert Brault, writer (b. 1938)
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will
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Re: Loudness imbalance in speakers:
Reply #17 - 11/27/12 at 03:30:50
 
Mark,

I agree the right walls are the most obvious possible issue, but I always start with subtler stuff to avoid too much obvious room treatment in my living area.

Comb filtering (where the 1st bounce reflection wave form is exactly opposite, one with the hump below and center, and the other above and center, or different offsets of this) or frequency specific enhancement (the opposite, where the 2nd wave form is parallel or some offset) can be huge. Straight on placement is the best way to get these. It can be many times 3db.

If the 1st bounce causes them to hit the side walls first, this sets a very complicated pattern that can help.

Perceived volume can have loads to do with mid mids up.
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« Last Edit: 11/27/12 at 03:34:12 by will »  

Mac mini, Tranquility DAC, CSP3, TORII MkIV, Morrow SP-7, HR-1s...VHaudio DIY, Grover, MAC ICs...PSAudio P5 and Shunyata Defender, PI Audio and DIY power cables, HerbiesAudioLab isocups and tube dampers...
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will
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Re: Loudness imbalance in speakers:
Reply #18 - 11/27/12 at 03:50:59
 
Mark,

If you really want to check the side wall proximity, for test purposes, you could put the system centered on the long wall briefly. This is likely the best start anyway if there is any possibility of changing the furniture into a nice configuration this way.
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Mac mini, Tranquility DAC, CSP3, TORII MkIV, Morrow SP-7, HR-1s...VHaudio DIY, Grover, MAC ICs...PSAudio P5 and Shunyata Defender, PI Audio and DIY power cables, HerbiesAudioLab isocups and tube dampers...
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Mark
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Re: Loudness imbalance in speakers:
Reply #19 - 11/27/12 at 13:08:48
 
Will: I thought about that; however, the photo does not show that a heating baseboard turns at the corner, then contines on a bit, and the console table almost butts up against the end of it on the right... I'd have to pull out the table much more to get in front of it, and also risk heat damage to my table and equipment...

I'd love to get the speakers another 2ft. apart, then toe them in a bit... That would be about perfect, scale-wise in my room...

I also have a Harrison Labs 2 ch. adjustable attenuator box for line-levels... Since I have two program sources, I could simply use it to cut the signal coming from the two right channels on my tuner and cdp, then go into the amp... But this has its drawbacks, as it inserts more pots into the system, which warms up the sound... I already have pots on the CD output, and of course the pots on the amp input for volume control... I don't want to dumb down the system any more than necessary...   (m.)



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« Last Edit: 11/27/12 at 13:14:09 by Mark »  

If a rabbit defined intelligence the way man does, then the most intelligent animal would be a rabbit, followed by the animal most willing to obey the commands of a rabbit. -Robert Brault, writer (b. 1938)
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jpv
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Re: Loudness imbalance in speakers:
Reply #20 - 11/27/12 at 13:09:16
 
Mark,
  I know you don't have much flexability to move you equipment but you could try this. Move the rack to the corner where the lamp is and place it on an angle. This will give both speakers the same reflection points. I have set up systems this way with good results there placement like yours is differcult.
John
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VPI Scoutmaster, Grado Sonata1, Counterpoint pre amp and amp (modded by Altavista Audio), Proac sp. and home made subs. Lots of room treatment. Anti-cable sp cables, Decware IC, ZKit 1.
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Mark
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Re: Loudness imbalance in speakers:
Reply #21 - 11/27/12 at 13:36:58
 
J: Great idea, but first let's look at that corner:



As you can see, it has its own set of problems: An AC unit, window, and baseboard heating, which is on now for the winter...
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If a rabbit defined intelligence the way man does, then the most intelligent animal would be a rabbit, followed by the animal most willing to obey the commands of a rabbit. -Robert Brault, writer (b. 1938)
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Lon
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Re: Loudness imbalance in speakers:
Reply #22 - 11/27/12 at 13:41:01
 
My not without cost suggestion: order a CSP2+* . . . or see if you can get Steve to add dual volume pots on the ZCD (mine had them).


* The sonic benefits of the CSP2+ far outweigh perceived loss from other interconnects, pots etc. and you'll have balance control via the trim pots, you can either adjust the input, output or both.
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« Last Edit: 11/27/12 at 13:42:38 by Lon »  

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Mark
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Re: Loudness imbalance in speakers:
Reply #23 - 11/27/12 at 13:46:40
 
Lon: I was thinking that very thing about the ZCD... That would at least give me some control over the situation... Of course, it would leave the tuner out of the equation, but I don't listen to the tuner all that critically, even though HD radio is very good...
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If a rabbit defined intelligence the way man does, then the most intelligent animal would be a rabbit, followed by the animal most willing to obey the commands of a rabbit. -Robert Brault, writer (b. 1938)
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Lon
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Re: Loudness imbalance in speakers:
Reply #24 - 11/27/12 at 14:04:08
 
The CSP2+ would allow you to add the tuner. Worth considering. . . . Before adding on vinyl listening to my daily repretoire (something I can't think of doing without now) I kept trying to do without my CSP2 or CSP2+ in the chain, but I have stopped resisting, it's just part of the magic, and it's so flexible.
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Mark
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Re: Loudness imbalance in speakers:
Reply #25 - 11/27/12 at 14:09:41
 
Lon: The CSP is a preamp only, and that would put me in need of something like the Taboo, right?... And that runs in pentode mode, right?...
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If a rabbit defined intelligence the way man does, then the most intelligent animal would be a rabbit, followed by the animal most willing to obey the commands of a rabbit. -Robert Brault, writer (b. 1938)
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Lon
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"Love without
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Re: Loudness imbalance in speakers:
Reply #26 - 11/27/12 at 14:12:41
 
As a preamp (and headphone amplifier) the CSP2+ would match up wonderfully with your current amp, and allow you switching between two sources.
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Mark
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Re: Loudness imbalance in speakers:
Reply #27 - 11/27/12 at 14:23:39
 
Just realized that... Thanks... Idea: Instead of adding wall treatment that takes away sound / reflections, why not add a floor-standing panel to the LEFT of the left speaker?... I could make it out of 5/8" firecode drywall, just like my current walls... I could even put little wheels on it to roll it out of the way when not in use...  

My concern is that I'm right at the margin right now as far as amp power, and any wall treatment that takes away SPL might put me below the margin... (m.)
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If a rabbit defined intelligence the way man does, then the most intelligent animal would be a rabbit, followed by the animal most willing to obey the commands of a rabbit. -Robert Brault, writer (b. 1938)
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jpv
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Re: Loudness imbalance in speakers:
Reply #28 - 11/27/12 at 14:40:32
 
Mark,
 I don't think other thean a heat issue placing the system in the corner would be that bad. I would add loudness.
Where do you sit when you listen? Is the table in front of you?
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Mark
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Posts: 190
Re: Loudness imbalance in speakers:
Reply #29 - 11/27/12 at 14:50:06
 
J: I usually sit way off, about 10 ft. from the whole system, out in the room somewhere [not in photo]... The table shown is very close to the system, and that is why I used a taller table to set the speakers on, which also serves to house the system...

I just don't think the corner thing would work, long-term... It might be good to just try to see what's going on... Although the corner thing would work well if I got dedicated speakers stands... That might be good... (m.)
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If a rabbit defined intelligence the way man does, then the most intelligent animal would be a rabbit, followed by the animal most willing to obey the commands of a rabbit. -Robert Brault, writer (b. 1938)
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