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Audioholics/Benchmark YouTube discussions

ex audiophile

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Like me, I'm sure many of you have enjoyed the recent discussions between Gene and John Siau posted on YouTube. How refreshing to hear objective and authoritative conversations that go into detail regarding interesting audio topics! I've come away with several conclusions/questions and I'd appreciate some feedback from others, especially @John_Siau .

1. It's clear that Benchmark makes superb audio gear based on scientific measurement. Combined with the excellent customer support and resale value of their gear IMO they set the standard for other manufacturers.
2. Their gear produces a signal with such low distortion and noise that it is unquestionably inaudible. The noise/distortion, not the signal lol.

The issue of intersample overs has been discussed here and elsewhere and need not be rehashed. Whether or not intersample overs produce an audible effect appears to be controversial but I think we'd all agree it's better to eliminate the problem if possible.

The most recent discussion re gain matching was fascinating and I came away convinced that maintaining a high S/N ratio from start to finish is, again, a desirable goal if feasible. But is the problem of inappropriate gain matching audible in most gear? Specifically, in one system I use a Node 2i coax into an STR preamp with "balanced" out to AHB2 amps in bridged configuration with the middle gain setting. In another setup I have a Yamaha RN800A integrated powering my M106 speakers and KC92 sub. How would I even know what gain settings exist in the Yamaha? Do manufacturers take these gain matching considerations (or DAC headroom) into account when designing integrateds?

Is it the sad truth that most of us could not hear a difference between my Yamaha integrated and a Benchmark stack in a blinded comparison? I think most of us hope that there is a audible difference even if subtle but in our heart of hearts doubt that there is. Because if the latter is true the thousands of pages of discussion and endless gear reviews are really only of academic interest to us and financial interest to the manufacturers. Of course it's speakers/original material/room acoustics that provide the best bang for the buck but the nature and quality of our gear is a source of never ending assessment and discussion. Is that now a waste of time for modern solid state gear?

I fully understand that many of us, me included, will likely still buy superb gear like Benchmark products knowing that any audible improvements are wishful thinking, but still gain satisfaction by simply owning the best.
 
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I think it's fun finding a value product that provides results so positive, one is quite happy with one's purchase decision and just enjoys music without worrying about the last few percent of the reproducible spectrum. Aiyima A07 type amp and <$99 DACs are two categories where I can live with the results and be happy. I would need room treatment and correction before more/different gear would be noticeable.

"...a source of never ending assessment and discussion. Is that now a waste of time for modern solid state gear?" Uhhh, ehhh, I think we may be leaning towards yes.

Most important is probably to get the features you want, such as I/O. Some like balanced, some hate bluetooth, some like MQA etc (wait do they?) I'm almost always using USB or optical into my DACs, but I appreciate one of them having Bluetooth as an option, same with coax. Aiyima makes an A07-like amp with Bluetooth, but personally I'd rather have BT in the DAC. Get this stuff right and one could be plenty happy with modern low-cost audio gear.

I'm probably going to keep gear for at least ten years after initial purchase, so flexibility is important to me so I can repurpose stuff later on. It's quite possible that I would rather play with MORE gear along the way, than play with the BEST gear for a while, so to speak :)
 
How would I even know what gain settings exist in the latter? Do manufacturers take these gain matching considerations (or DAC headroom) into account when designing integrateds?
It is a huge mess. Some companies seemingly pick random gain for their amps. Others only think of their own products. Many still design to old standards not taking account the higher output of today's DACs, leaving performance on the table. We see gains as high as 30+ dB which is unnecessary. If you look in my SNR tests of amplifiers, I specify what input level was required for max power. Using that information together with the output measurement of the DAC, you can make an informed decision on what is what.
 
I really enjoyed this series of videos, very informative!

Especially the one on intersample overs. I just watched this one again to confirm that my understanding that using Roon's Headroom Management tool can mitigate this problem by entering -3.5dB (in my case) headroom to accommodate my non-Benchmark DAC. They addressed this specifically in the video.

The one on the AHB2 also had some information I wasn't aware of, even owning a pair of them myself. I thought I knew everything. ha
 
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