Hi Unsound, Stereophile reviewed and tested the mf2500. I'm pretty sure that they test 4 and 2 ohm loads, as well as 8 ohm loads. It's all part of thier normal bench tests that they do on a lot of reviewed equipment. If you go to Stereophile's web site, you should be able to pull up thier review of the mf2500 at no cost. The mf2500 is a very nice and musical amp. Best of luck. Stan
c-j technical questions
Does anyone know of any tests that show the power out-put of conrad-johnson's solid state power amplifiers into a 4 Ohm load. I'm particularly interested in the 2300, 2300A, 2500 and 2500A amplifiers. I'm also interested to know what the out-put impedance range preceding these amplifiers should be.