Garfish, perhaps you should investigate different tube amps. The various brands all have different sonic signatures. From solid state sounding, to as warm and sweet as honey. And EVERYTHING in between. Have you read the Sam Tellig review of a McCormack amp in Stereophile last month? Even Steve McCormack prefers the sounds of tubes(Ray Charles could read between those lines). But he designs solid state products because he likes the fact that the sound does not change over the long term. In my opinion, a solid state amp does degrade, just not as noticeable or as fast as with a tube amp. My father's Lafayette receiver(yes, it is in his number one system) needs to be completely gone through(dried out caps, etc.). And, in my opinion a well made tube amp can last a lifetime(witness Marantz, McIntosh, Leak, etc.). But, if your McCormack is the key to your listening bliss, God bless you.