I have never heard the Carver but here are the facts-
with stock tubes it puts out 25 watts per channel.
it does not appear to have a large bank of filtering or storage capacitors.
it weighs 19 lbs.
reports are circulating that it actually produces less power than claimed.
I have owned the Stereo 100. It produces 100 verified watts per channel with the KT120 tubes.
It has a very powerful, impactful, dynamic sound that is more impressive than its power spec.
It has a large bank of filtering and storage capacitors - at least 8 large caps on the chassis.
it weighs 60 lbs but is also more expensive.
the stereo 100 is a winner, if you have the funds by all means this one is recommended.