Some believe the TA2020 to be the best sounding T amp and listed below is a review of the original cheapo Sonic Impact. For the record I've never heard someone who owns a T amp diss them as sounding bad when paired with efficient speakers such as the Dayton. I have three T amps and they all sound better than my garage sale Pioneer, HK, Kenwood and Realistic receivers from the 70's. I would however give a slight edge to my 1973 Marantz 1150 but for different reasons.

http://www.6moons.com/audioreviews/sonicimpact/t.html