A couple of nights ago I got to listen to the Sophia Electric Baby Amp. I had never heard an SET amp before and I was beguiled at the SQ from that little thing. My buddy is using the Sophia as part of a desktop computer system with Klipsch 3.1 speakers.

Here is a link to a review of the amp that I generally agree with the reviewers findings:
sophia

What I am scratching my head over is that I did not find the amp to sound aggressive or tilted to the high frequency as other reviewers have consistently remarked.. I thought it was just right-- balanced in the whole presentation.

Being that I am new to the whole tube electronics thing I am trying to understand the differences between SET and other tubed gear. My question is this....is the only difference in SET the type of tube that is used, a triode?

Thanks for the feedback fellas!