2. digital
  3. 125150-2280

Will an Isolation Transformer Help My Digital?

I am experiencing noise from my digital components into my system. It presents as high frequency interference thru the speakers once the components are warmed up. This interference is being sent back to the mains and can be heard when music is being played or idle.

I’m using an ARC CD3 mk II CDP, Chord DAC, and a NAD CD player. I have a 20 amp dedicated line with Blue Circle power conditioning at the wall.
A Furman power strip for the low-current analogue components is plugged into the PC. Also feeding from the PC is a Tripp-Lite Isobar with isolated filter banks for the digital. The toroidal chokes in this Tripp-Lite power strip are not able to filter the digital noise.
My amp plugs into the wall duplex outlet.

I posted a thread earlier where it was mentioned than an isolation transformer used exclusively for the digital components might resolve the noise/interference problem.
I read in the archives about the use of a Tripp Lite IS250HG Isolation Transformer to isolate the CDP/DAC.

https://www.amazon.com/dp/B0000ET7Q6/ref=wl_it_dp_o_pC_nS_img?_encoding=UTF8&colid=29XG41GAZ363K...

So, I’m asking if this would be a solution, since I don’t plan on running another dedicated line. (too many reasons to list).
128x128lowrider57

Showing 3 responses by ptss

ptss
1,959 posts
 
Have not reviewed all posts however my experience with Tripplite Isobar Ultra 8 is that it is not suitable for hi-end use due to power constriction and noise. Dampens dynamics. I use three to isolate other digital, non hi-fi items, from the mains power and provide surge protection. 
I have been extremely pleased my Equitech 2Q and Sound Application units. 
ptss
1,959 posts
 
Re the isolation transformer; yes I have used 3 of them. on a preamp, separate cd player and separate turntable. This was before I got my Equitech and Sound Application units. Very effective. I highly recommend provided you use top quality and substantially overspec'd
regarding current draw.
ptss
1,959 posts
 
Test some units of different amperage on just your digital. But remember, each unit improves as it's power supply is improved,so the testing should be repeated for your digital after you've improved the PS to the other units. The sound will go up and up and up. Cheers to a pristine source of AC.
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