Steve Deckert
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Yes, it has been a long one, not unlike a bad car ride to a place way too frikin far away...
I started in the early 1980's with a Radio Shack CD player made by Hitachi. Twenty years later after starting Decware, I had a nice Conrad Johnson DAC that I really liked, and several others all being served by a highly modified DVD player for a transport. You know, If I'm going to champion good sound without the extra zeros on the price, I have to live it... not that I really had a choice because we are not high rollers around here.
One day a customer of mine offered to bring his top of the line Wadia dac and transport over to let me hear it, and I couldn't say no because to hear it in my own listening room with my amps was going to be highly useful. I head the DAC hooked to my transport and digital IC and it blew away all the dacs in my collection. It was over 20 grand at the time. This was 20 years ago btw.
So he had my attention, and proceeded to get the matching 38 lbs transport and lugged it into my listening room. We hooked it up, and the difference that made was twice as big as the difference the dac itself made. I was amazed and depressed. We're now approaching a total of 30 grand.
Then he offers to replace my 600.00 digital IC that I felt cost easily twice what it was worth, with his 6000.00 digital IC and I said sure why not. This one I fully expected to be minimal at best and the damn thing was transformative to the point that as soon as we took it out and put mine back in the entire stereo sounded broken.
I was pissed because I then knew for a fact that it would take 38 grand for me to like digital which started a long resentment towards the CD format which lasts today. Basically if you don't have a CD transport that weights 30 or so lbs, you're not in the game. Basically the total system price of this reference rig was pushing 40K.
I spent 10K on a vinyl rig and had the last laugh for many years.
That doesn't mean I didn't listen to digital literally every day, who doesn't. We came out with many fantastic poor mans CD player's with tube output stages that sounded pleasant and as long as you didn't listen to the Wadia rig at 10X the price, it sounded great.
So fast forward about 15 years or so to more recent times, and I do a lot of streaming from Tidal and Qobuz, and the sound is very good. DACS have been a variety of Burr Brown based sub 2K offerings that rise to the top of the their price pool, and the streaming was always done from computer via USB connection.
This lead to trying many different computers, power suppliers, cables, software, and DACs, the most recent being the TEAC UD500 series stuff with our transformer-coupled output stage. The sound is good, and has hosted many DECFESTs over the years, but during the rest of the year day in and day out during work and in the evenings, I have a completely love HATE mostly hate relation ship with it.
I have a keen ear for sudden changes in the 'ether' that underpins sound quality and the required system synergy. When these changes (distortions) happen it is distracting beyond belief. It happens all the time. For years it happens and wastes hours troubleshooting ghosts that do not exist all because the stream started compressing or creating artifacts that make your amplifiers sound like they are distorting when they shouldn't be. This has happened at least 10, 000 times to me over the past 5 years.
The only good news in this depressing saga is the Qobuz and even Tidal streaming hi-res audio. In the case of Qobuz it is CD quality with no compression whatsoever. And it goes up to 24/192, and at least half of everything on it is 24 bit. This is a serious breakthrough over listening to MP3's and iTunes in past years.
Ever since Qobuz, my main streaming service, came out I have had issues with a stumble when the song starts (exactly like a carburator with a broken accelerator pump) and at least 10% of the songs will just stop mid stream for no reason and the spinning wheel of death just sits there and spins indefinitely until you click on a new song.
Recently I finally snapped and decided I had to do something before I take it all out in the yard and shoot it.
So in an effort to eliminate this stalling and stumbling and inconsistent sound quality that really shorts me out, I knew it was time to move away from software (my computers, of which I buy the best IMAC's and have owned 11 so far.) and move into dedicated streaming hardware that only does that and that alone.
My research combined with what I know lead me to realize that many of the best streamers were also DAC's, and it makes sense to combine the two for more reasons than I care to list here. Of those the Cambridge CXNv2 streamer was frequently ranked higher than models costing 4 & 5K, and it has it's own DAC eliminating the need for the cable. Not just the Digital IC but also the USB. WIFI is all it needs to work, so basically a dedicated piece of hardware that streams without a computer, has it's own DAC, upsamples everything to DSD and can be controlled with any smart phone, tablet, PC, or it's own remote....
Two things happened when this arrived. Flawless streaming without a single glitch, stumble or stall and sound quality I completely wasn't expecting. This is a serious giant killer. My complete respect for the British audio company, Cambridge.
I want to get into the reason for the sound for a minute. First the dedicated hardware eliminates software. Also it eliminates jitter. Finally it eliminates the giant inconsistency from one album to another which is of course impossible unless you have some really gifted programmers crafting the ultimate algorithm for upsampling. I would say it does a hell of a lot more than just that.
Prior to this I was using the Team USB dac with our mods, going into a ZROCK2 that went into the ZTPRE and that was my source. I used the ZROCK2 about 50% of the time depending on the recording.
Wonderfully I am able to have both systems hooked up simultaneously so that I can use the ZTPRE to select the TEAC/ZROCK2 SYSTEM and the Cambridge balanced outputs directly into the ZTPRE with no ZROCK2.
To make the two systems sound the same, the ZROCK2 has to be turned on and turned up to that sweet spot that ZROCK2 owners' know all to well.
This should be impossible unless the algorithm and DSP have figured out how to a digital version of a ZROCK2. Believe it or not, the Cambridge with no ZROCK2 connected directly to the ZTPRE has exactly the same output and HIT as the Teac DAC with a ZROCK2. I know, I'm repeating myself, but it's just so hard to believe. Anyway, while the hit is the same in this comparison, the Cambridge has better speed and clarity. It just sounds firkin unbelievable. Better than the Wadia of 20 years ago for sure. The Algorithm is magic and consequently it has made my digital sound quality rival the consistency of my vinyl and tape library for the first time.
I wish every Decware customer had this unit, because it would make their amp sound twice as good like it did mine. I can't tell you how much of a joy it is to hear streaming that is high res, never wavering, far superior to CD, and somehow creating a bridge to use when needed when recordings are less than stimulating with some kind of intelligence that just knows how to fix it.
Sound quality consistency problem with streaming miraculously solved.
Next, I will talk about the next step which is believe it or not EQUALLY transformative, and when the two are combined the result is just spectacular. We'll save that for another night.
Steve
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