isolation transformer


Hi, I would like to hear from fellow Audiogoners what they think whether or not the use of an isolation transformer for the front end gear (CD player/DAC/Phono) is worthwhile.
According to a well known Swiss manufacturer/distributor the use of an isolation transformer has profound effects on sonics (more detail, better bass, etc.). These effects are more pronounced when using silver wire for the transformer. Do you agree with these statements? What would be better: using a smaller transformer with silver wire (say 200VA) or a bigger one, using copper wire (1200VA)? Thx in advance for your response.
dazzdax
I tried a 2KVA Iso transformer in my system. No difference. In fact a power engineer friend commented if anything it would make it sound worse. The transformer is used to block
dc spikes, like lightening. If you must use it get one thats way big like the one I have - 2KVA (2000VA). In fact if you want I'll sell you mine. It still new and has an outlet on the secondary.
I have used a pair of Ensemble Isolink isolation trasformers for years on my digital rigs with great benefits- the only caveat being this: be careful daisy-chaining too many isolation transformers together. I actually found I liked the Isolinks better into a passive line conditioner/strip (actually, they worked great a few years ago with a Tice Signature IIIC) rather than the big BPT 2.5 transformer-based unit- YRMV. Also- I would be remis not to mention the Foundation Research LC-1 combo power cord/conditioner- works better on my dacs than any other particlur isolation device.
I use an Ensemble Duo Isolink for my digital front end with wonderful results(blacker background,more natural timbres,deeper bass,bigger deeper soundstage) and their are no negative aspects at all as far as I can tell. I have tried other power conditioners without getting the same results as the Duo Isolink transformer. I have also found that the Harmonix studio master power cords are the sounding on my digital front end.