These pads can be set to 0 dB (bypass), -10 dB or -20 dB. These can be used to optimize the gain staging between the DAC3 and the power amplifier. The DAC3 includes passive attenuators at the XLR outputs. With almost any volume control system, the S/N ratio will be best at maximum volume. These regulators are a proprietary Benchmark design and they prevent the harmonic crosstalk that would otherwise occur in the ESS chip. The DAC3 uses separate reference voltage regulators for the L and R channels in the ESS converter chip. But when the only mechanisms are capacitive and magnetic coupling, the crosstalk signal will be distortion free. When the power supply rails and reference voltage supplies are the crosstalk mechanism, the crosstalk signal will be primarily a distortion signal. In the DAC3, you will find that the crosstalk is clean. Is the crosstalk composed of harmonic distortion or is it a clean low-level version of the other channel? In many products, the crosstalk is mostly harmonic distortion. When measuring channel separation it is important to look at the content of the crosstalk. 105 dB at 20 kHz is impressive performance. frequency (not shown) for both directions was 105 dB or better from 20 Hz to 20 kHz which is quite good.” Here are a few comments about the bench test. It is a worthy successor to the DAC2-DX and features many enhancements to measured and subjective performance. This post was a bit off topic, fortunately this thread saved me from buying X-PRO pascal modules, I was considering them but no more.Benchmark Media VP John Siau: Thank you, Everything Audio Network for the review and bench test of the DAC3-HGC. Did not buy it for it's incredible measured spec's, that's a nice bonus. My personal gear is an RME-ADI-2 Dac FS, i've been happier with less, but it's a pretty seller piece of gear. I'd take the 90 SINAD all day long if it came in a better chasis with more features and greater usability. There are also many other intangibles and matters of practicality. Most humans don't prefer flat, especially the uninitiated. If we get an amp with some top end roll off, and a little bass boost with a sinad of 90, it may be vastly prefered over a perfectly flat amp with a sinad of 110. I also like the way tubes sound, but know and fully accept that im hearing distortion. I am of the opinion that "voicing an amp" is a real thing and that gear can sound different and measure poorly and still be enjoyable or even desired. Like a sculpture some audio engineers mold and shape distortion to their own desire. Lol man, also, accept that measurements and sinad are not everything. Solution would be adding relay, but this could worsen transparency, as Mytek support tends to point maybe are there other proper ways ! and if possible, lessen the plop sound when going out of standby, on mines, which I use in bridge mode, the level of the 'plop' increase slightly when cycling standby on/off more than 2 times in 5 minutes, depsite not harmful. as I already pointed in my previous messages, a bit less heat in a closed rack would be reassuring Stereophile pointed higher 3rd harmonix on one channel, please add this criteria in QC, if significant enough. improve the quality of the asymmetric input (you spotted high freq), as many nice streamers have no xlr pre out (evo150 tdai 1120), and the Mytek Bridge 2 is delayed anyway. possibility of setting the color of the M logo is SO nice, keep it please! wish a bit higher snr at low power to improve the consistency of the experience, which is quite enjoying and dynamic, and precise at medium power levels. the software to control it from usb does not scale on 4k monitors under win10 (again you need glasses when looking at the setting window) jumpers are really scary / too tiny for neophytes, and personally, I always triple check that thing, which hampers a bit the unboxing experience. Regarding these AMPs+, here are my observations/wishes for the next iteration, if any : (Far better than TEAC BB UD501 or even maybe the AK4490 UD503, to my taste). I had a Brooklyn DAC+ in the past, and despite some QC issue needing RMA, I had just never been disappointed in the sound quality of Mytek's products. On a client side, transparency of the founder is a plus, even if I understand this have not been a match between you two. Hope this brand survive and continue to propose their designs, because there products are well thought overall, and most importantly sound great. (Currently showing hypex 500khz one instead if I'm reading correctly) Just spotted one potential inconsistency after reading again the amp+ review : this one has switching frequency of 650khz due to new MOSFETs.
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