Speakercable and powercord that thightens bass.

TVAD, size does matter here! On power amplifiers these REF-1's create a pulse I have never quite experienced pryor to there installation on my BAT VK-500. Transformed this into a totally different beast in a very good way. The BAT came ALIVE. It's like going to a live performance every night in my own listening room. Don O. DCCA Audio

I agree with Don,My BAT500 came alive also.Even my Plinius
SA100,My ODDYSSEY Stratos came alive,the improvement
you hear is huge, thats what I have experience IMS,
and MARKr system.This pc will save you a lot of money,
you will forget upgrading your gear.Thanks