Hi jaideep
I really don't know how to sum up, what it contributes to the sound. As I've been using it to power up my entire chain for almost 2 years now, I really can't comment on how it sounds without the regenrator in the loop. But I do get pitch black back grounds, and a lot of associated heat too
That being said, I can't hear a difference between power cables anymore, as all are fed with very clean power now. And as I run very effeceint speakers, I haven't lost any thing on dynamics front, as can be the case with lot of other power regenrators and conditioners.
But I mainly keep it in the loop for protection, as I've had some nasty experiences with power surges blowing some boxes in the past. I know this answer is very very vague, but the regenrator did replace a cvt + isolation transformer I was running in the past, which were noisy with a lot of hum. This is very very quiet, with better clean power.