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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.

 

 

 

128x128dcpillai

Showing 3 responses by hgeifman

hgeifman
2,113 posts
 

Does the PS Audio mk2 DAC have an Ethernet board that allows you to stream from Qobuz, etc.? How are software upgrades installed? Thanks.

is the Ethernet board standard or an extra cost option?  Thanks. 

hgeifman
2,113 posts
 

I asked PS Audio for information on their DirectStream MK2 DAC regarding the Ethernet connection, the units hum, HDMI, etc. As noted below, their LATEST software update FIXES the hum issue. Please see his response below:

“The network board inside is only for future software updates. It is not for streaming. The DAC itself does not have the ability to stream. You need a separate streamer to send it the signal. Currently the updates are downloaded from our site and are put onto a thumb drive which is inserted into the DAC. The OTA updates through the network connection is expected to be released soon.

The DAC has no HDMI connections. The I2S ports use an HDMI cable but they are completely different.

The noise that is heard through the DAC is now fixed with the latest software update. This hum/buzz was only heard if you ran the DAC directly into your amp with no preamp. If you use a preamp, you cannot hear it at all”.

NOTE: I have no information when their latest software will be released.

hgeifman
2,113 posts
 

+1, “I would never buy anything with a 60hz hum”. Obviously, something is wrong.

It is very strange that some units have this hum issue and others do not. In any case, I would not purchase the unit until the hum issue is addressed.

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