- Apr 28, 2007
Is the chart in the OP still accurate in that you need to get 2 sets of transformers? I'm currently confused as to how you're supposed to connect your system with computer/dac/amp. There's a lot of stuff said in the thread but none are summarized into one recommendation after being discussed so far.
I just have a computer/Schiit Bifrost 2/and THX 887 amp. The Bifrost 2's Unison USB claims to have electrostatic+electromagnetic isolation so I'm not sure if I need to move the PC off the Topaz or not. I see a lot of Topazs coming with two receptacles. Do you need to put every component on a strip off of 1 receptacle or can you mix and match?
(Edited for question clarifying)
DACs and PCs are known to generate "backwash" noise, polluting the power going into anything else that's plugged into the same outlet or power strip.
You've got three devices, so you will need a small, simple power strip, with a short power cord, no surge protection or pilot lights or fuses, into which you would plug your THX 887 amp, directly (i.e. Uninex PS28E).
Optionally, go ahead and plug the Bifrost DAC and your computer - both of which might be generating backwash noise - into that same power strip shared with the THX amp. Now plug the power strip into the Topaz grounded-neutral secondary isolation transformer (rated to handle at least twice as many vA (Watts) as that consumed by all three devices when running).
Ideally, to ensure that neither your DAC or your computer can pollute the power coming into your THX 887 amp, you should purchase two more isolation transformers that will sit between the power strip and those two devices. These two isolation transformers should have a grounded faraday shield and a floating-neutral secondary (i.e. two B&K Precision 1604A).