Modding the PS Audio Directstream DAC MK1 and MK2

Agree with above post as it is almost exactly how I would describe the upgrade. I can attest to the massive enhancement of the DSD Mk1 after the APS transformers, VOCM mod, and I2s input shorting plug on unused input.

I had @richardselectronics do the work on the unit. Quick turnaround.

Huge soundstage, and control with detail and presence.

The Bass response is deep and defined.

If you have a DSD1, this is a no brainer. It is then an endgame DAC.

I have had a lot of separate DACs and high end source units with modded DACs from a lot of the usual vendors here in last 20 years.

All good, but this is another level totally for the price people blow on cables here.

I think you may be able to order the i2s shorting plug for the i2s input #2 which is supposedly the noisier one from Jeff, or post a WTB on the Marketplace at PSAudio and somebody should have one. I guess you can make them also if you know what you are doing.

I have one and also a USB shorting plug. I use the i2s input #1 from a Matrix USB converter which is fed by Lumin U1 mini streamer.

All I can tell you is the noise floor is lower overall with all of the mods which is always a good thing.

It is a cliche, but the music comes out of a black background and sounds live on good recordings. 

I should note I also kind of lucked out and there was a used analog power board module on the PSAudio forum I picked up and installed. Ordered a decent external Chinese LPS to use with it and that also was a nice incremental upgrade for minimal cost.

Really pleased with this DAC.