Great sounding pair of amps with questionable reliability. I love these two little power amps but am getting a little tired of sending them back for burnt out output caps even though I have had them all upgraded to a higher heat rating. Sonically they are quite beautiful with great detail, depth, stereo imaging and subtelty. Beautiful vocals and good bass wallop and strength. My recommendation would be never to leave them running if you are not using them as this will shorten the lifespan of the internal components. Like a very hot Alfa Romeo they are awesome if you can keep them on the road!!