tube Watts vs solid state Watts


Hi folks, can anyone explain to me why 20W tube amp is more powerful than a 20W solid state amp? Further: a 20W pure class A amp is more powerful than a 20W class B amp. Why is that? I've always thought Watt = Watt.

Chris
dazzdax

Showing 1 response by grannyring

No doubt the tube amps I have owned play louder and have more "power" then higher rated (watts) SS amps. Very much my experience. My current 45 watts monblock tube amps have more speaker driving power then all 50 - 100 watt SS amps I have owned. I have owned many good ones to be sure.

My experience confirms this on many, but not all of the tube amps I have owned. It depends on the builder. Some tube amps are spec'd at 50 watts and only put out 32 when measured. Other tube amps put out more then the stated power.

The same is true for SS mps. I owned an Aloia 60 watt amp that was measured to put out 100 watts. Again, really depends on the builder and what they decide to list in the spec's.

However, in general, tube amps sound more powerful than like wattage SS amps. This is in general.

Bill