Hi Terry,
As you know there are a number of Double Impact owners very happily using solid state amplifiers. Do you plan to use your Pass Labs XA 60 .8 with the Ulfberths to give a contrast comparison to your Triode Labs 2A3 SET. I strongly suspect that the Ulfberths will reveal all that both fine amplifiers have to offer and their differences.
Charles
As you know there are a number of Double Impact owners very happily using solid state amplifiers. Do you plan to use your Pass Labs XA 60 .8 with the Ulfberths to give a contrast comparison to your Triode Labs 2A3 SET. I strongly suspect that the Ulfberths will reveal all that both fine amplifiers have to offer and their differences.
Charles