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APS audio transformers

Custom audio transformers

We are currently having a sale on our top of the line Signature Series PLUS DAC that includes

our our R-Core APS internal power supply installed in Our Signature Series units. 

The PLUS upgrade normally cost $829.

Signature Series PLUS sale $4,394 less trade in.  We have both Silver and Black units available.

*While supplies last*.

PS Audio Directstream DAC MK1 Rev.2 Transformers



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Matched Pair of our new Rev.2 80% nickel transformers for the PS Audio Directstream DAC MKI.

These require a pre-paid order as we build these in batches.  First come first served basis.  We sometimes have them already built and in stock however If you want them, we recommend you pre-order them to get on the list. 

About Us

We have been designing and building custom upgrades for the directstream DAC since 2019


You can read some reviews and find out some more info about our products here and here



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We are located in the

Baltimore / Washington area