Wait until you guys hear the CF amp from last year with the 12AX7's Jerry's running with. Smoked his VTL tube amps to bits on a pair of Apogees of all things.
With the Sunfire against the Lightstar, it depends on what you are looking for. The Sunfire seems to have endless power capabilities and a less refined sound signature [when compared to the Lightstar] while the Lightstar has a very refined sound signature but can tend to run out of steam when driven hard
I think we found that the problem was due more to available wall power than the amp.
Carver M4.0T in front channels to Caver AL VI's in SACD & 2 Channel setup
C 16, PT 2400, Slim Device, Carver TX-8, 490T and Rega TT w Grado Gold cart in the 2 channel setup
Bogen SRB20 is computer amp
Carver PM-350 donated for youth church use