One of the best VFM power products I have used is the Monarchy audio AC regenerator. It can only support upto 150 watts so power amps are out of question but for CDP and preamp this one product is right among the best. The improvement in definition, smoothness, PRAT and backgorund blackness is just amazing. All this without affecting the existing warmth is rather surprising. And it costs only $750 or so (less than a decent power cord). I use it only with my source and I just cannot live without it.
