My contact at PS Audio tells me that an oscilloscope can pickup a little hum from the transformer. But there is no audible hum. I have a DSDMk2 on order. Trading in my DSDMk1.
PS Audio Direct Stream MK2 DAC
While researching the PS Audio Direct Stream MK2 DAC on the PSA Forum, I came across this:
"Regarding “hum,” Ted said: “ You had the opportunity to return your device if it was wasn’t acceptable. I don’t know how one could claim to have been screwed…….”
Not only that, this “hum” was a known feature, as it was discussed early and often in the beta thread. Paul even went so far as to claim every component PSA has ever produced (or at least, every component on his shelf) has this hum."
Further, Ted himself says:
"The hum is coming from the piezoelectric response from a few critical capacitors in the power supply. The device was designed with a component that wouldn’t cause this problem, but supply chain problems forced us to design in a slightly older version of the part which caused the hum. Unfortunately, the new and old parts aren’t footprint compatible, so we’re stuck with the older version for a while even when the newer parts become available again."
Ted is Ted Smith, the" Chief Digital Dude" at PS Audio.
Question to all PSA DS MK2 DAC owners, do you hear a hum?
All in all, do you think it would be better to wait for a while until the problem sorts itself out - OR - is it "much ado about nothing" and I should just go ahead and get the PSA DAC?
I am leaning towards waiting .... But I am interested to hear your views too.
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I have a MKII on order. PS Audio has been fantastic about repairs, etc. One of my monoblocks ran warmer than the other, and since they were such early units, they paid for shipping both ways for both units to check them both out and make any production upgrades. They came back even better sounding. From reading the hum thread about the DS MKII, it seems they had to substitute a part due to the worldwide parts shortage and had to change the design a tiny bit due to that. Same with having to resdesign for dual smaller FPGAs instead one larger one. That’s what was available and I’m okay with that. Ted already has some amazing ideas of how he’s going to utilize that second FPGA, and if the MKII’s sonic evolution is anything like the MKI I experienced, it’s going to be an exciting ride. BTW my MKI started life as a perfect wave Dac, and was still offered full trade in value. And PS Audio will still warranty the DAC with an aftermarket transformer!!! I don’t know any other company that would support (properly) modded products, so kudos to them.
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@fittebd Hmmm. You might have a point about the hum being a "feature". I checked and its from the text that I quoted in my first post above, ie what was said by a participant on the forum. I cannot say that those words came from Ted Smith himself. Thank you for pointing it out. |
@lalitk I am just about to lay down the deposit for the Spring DAC Level 3 KTE! Though it's without the preamplifier. Or do you think I should get the Holo May DAC instead? |
If possible, I recommend in-home audition. Holo May KTE can be your end game DAC. In addition to premium parts in May DAC, a dual-chassis design of physically and electrically isolating the sensitive audio circuitry from the noise-generating components is always a huge plus not to mention the beefed up power supply. |
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