Axiom Home Page Forums General Discussion Stereo Axiom M100 vs. Bryston Model T

I haven’t looked but I seem to remember a blog post by Alan on the ADA using IR’s FET tech for the power stage ... might be their direct FET but on that I’m guessing ... I assume they also use IR’s switching logic but again I’m guessing. I should add that the info above is pretty old ... probably posted around the time the ADA amps came out.

It's all right here.

http://www.irf.com/product-info/audio/classdtutorial.pdf

A couple of years ago IR came out with a quad rail solution which in ADA1500 case (super high rails for all that head room) would save a ton of power. The downside is it would add a significant cost with little marketing value as most people would not care.

Thanks! No, our amplifiers are not based on any other designs or modules. All of my amp designs are from the ground up. The ADA1000/1250/1500 all share a similar topology, only the type or number of output devices changes depending on the power supply voltage and output power requirements. The ADA1000 is a bit simpler in terms of the input stage and protection circuitry, but otherwise shares the same performance with the bigger models.

Thanks,

Andrew

I wonder how Mr. McBlue is enjoying his passive Ts.