CLASS A AMPLIFIERS

Another aspect to consider is that Single Ended class A amps do not increase their power output in lower impedence loads e.g Pass XA series amps. Which is why you need to consider the speakers efficency in most cases when using pure classs A amplifiers.

Chuck

Hi Al. The Gryphon Antileon Signature Stereo puts out 5000 watts at 1/2 ohm. The mono's put out 7500 watts at 1/4 ohm.
Frank
P.S. I have the Gryphon Encore. 500 watts at 8 ohms and the first 30 is class A.

Hey frankg how do you like the encore ? I've never compared it directly to the signature but I bet it holds up pretty well.- Jim

As "Aldavis" points out, size and heat indeed. At 145 lbs and 16 power tubes each, with a conservatively rated 150w Class A, the CAT JL-3 monos do a wonderful job doubling as floor heaters.

Chuck, I was under the impression that some particular examples of the Aleph amps with minimal gain stages were unable to double down, but, all the other Pass amps were able to double down. I would guess that those which could/can doube down would halve their class A out-put as they did so.