Clock in PS Junior


#1

@tedsmith I am wondering (apart from affecting the warranty) how big a deal it would be to upgrade the master clock in a PS Audio Junior DAC to say a Pulsar?

There is a lot of discussion on this topic these days and any reclocking (along with clean power and isolation) I have done in my system has brought really great improvements. Curious if this is possible and if it would bring even more joy from my Junior DAC?


#2

First off the Pulsar clock isn’t something that the Jr can use. It’s a clock and the DS and DS Jr use a VCXO.

Tho the long term stability specs for the Pulsar a pretty good, long term stability doesn’t matter for audio (who cares if you are a second off after playing for a year…)

The near in phase noise of the Pulsar isn’t substantively different that the oscillator pack used in the DS and DS Jr (and is worse as the frequency goes up) - we didn’t cheap out on the clock. I got the lowest phase noise I could find at the time and tho people have been advertising the lowest phase noise in other DACs, they are using the lowest phase noise available in a small package. I use a bigger package so I can have even lower phase noise…

Also FWIW The Jr has a custom discretely implemented regulator used just for the clock so the power is pretty good for it as well.


#3

Great, thanks Ted for the detailed info. That explains why the junior sounds so good. :slight_smile:


#4

I think for the $/value- the Jr. is one of the best products PSA sells. That’s one reason I have not “upgraded” to Sr nor pay much attention to threads on the “cost no object” versions… It’s just dang good and who knows what I would have to spend to hear a difference.