Tube amp power rating question.


Is it true that the output power for the tube amp does not depend on the load? Here is the response from one maufacturer when asking about the tube amp rating on one of thier SET amp:

"Rated power of a tube amplifier remain the same at any output impedance taps unlike solid state types."

Is it true? If so does it mean I will get the same power output regardless if I use 4 or 8 ohms speakers? I thought that the lower load (i.e 4 ohm) can get more power than higher one (i.e 8 ohms.)

Any thoughts on this?

Thanks a lot,
Ake
ake

Showing 1 response by weiserb

It depends on the design , Many tube amps feature multiple taps so that they can deliver the same power to different loads, While others like the VTL ST-150 are designed to deliver the same wattage into different loads. Read the amps specs , look up the amp on the companies website, or call the specific manufacture for details about their product. Its also a good idea to make sure that the impedence of the preamp is properly matched to the poweramp.