[Puma Cat]

Originally Posted by AVphile

Recently, I changed my speaker cables from 20-year old Transparent MusicWave Super (bi-wired) cables to new WireWorld Silver Eclipses. There is no question whether the result was worthwhile; the improved clarity is really rather remarkable. However, in one regard -- what I'll call "fullness" -- my new sound is less satisfying. I am not about to return my new speaker cables, so I am asking my fellow audiophiles about the likelihood of being able to "have my cake and eat it, too" by now updating my power amplifiers.

At present, I use two 20-year old Krell amplifiers (the FPB 200C for left/right; FPB 250MC for center channel) to drive my Revel Ultima Studio and Voice loudspeakers. I recognize that Krell, among others, have made significant technical improvements in their amplifier designs and performance. Would Krell's new XD amplifiers provide a "richer" sound than my current models? Are there other manufacturer's amplifiers I should consider as upgraded replacements?

and

Originally Posted by PHC1

If you can hear the difference with the new cables, specifically improved clarity and you heard fullness and richness with the older cables, then that tells you your amplifiers are capable of much more, in every aspect.

My suggestion would be give the new cables a few more weeks and everything will sound better. <snip>

As Serge has mentioned, give your new SPs some time to settle and burn-in...probably on the order of 150-200 hours, if not longer. Side note: Several years back, when I installed some Anti-Cables SPs, Paul Spelz specified 500 hours of burn-in.

You may well find you don't need new amps at all.