I have just upgraded to the Clark units and I just hooked them up to my new Audiosource Amp1.Either this amp is over rated for power or I am doing something wrong.I was powering one Clark 229 with a Yamaha 590 receiver which is 75 watts.It did a good job,but I thought if I get the Audiosource Amp1,it would be even better.I now have 2 Clark 229`s and I hooked them up to the AIdiosource which is 80 watts per channel and I am barely getting anything out of them.I am hoping somebody has some suggestions because I am NOT impressed with this amplifier at all.