Preamplifier power supply


Hi folks, should a preamplifier have a BIG (that is: an overkill power supply) to sound dynamic and authoritative? I'm asking this because some experts would say "yes" while others would say "no". Recently a well known audio journalist (Anthony Cordesmann?) said that the preamplifier doesn't have to have a big power supply because it doesn't have to deliver lots of energy (in the form of current). A preamplifier can sound "dynamic" even with very modest power supply --> for example the built in preamplifier in the Benchmark DAC. But some manufacturers rely on a truly overkill power supply in their reference preamplifiers: MBL, First Sound Audio, BAT, VTL, LAMM, Mark Levinson. So who is right?

Chris
dazzdax

Showing 1 response by michaelgreenaudio

Anthony Cordesman is a classy audiophile gentleman who I've had the pleasure of listening with as he used and reviewed my products many moons ago. A shout out to Anthony!

Now about transformers. My answer would be somewhat different than those who go with bigger is better only. Innovation in audio is being advanced at a more progressive pace over the last 15 or so years and I see and hear design improvements leaning toward smaller transformers.

I look at transformers the same way I look at speaker crossovers, more and bigger parts is usually a result of something not working up to par somewhere in the chain.

Michael Green

http://www.michaelgreenaudio.net/