Thanks for the answers.
I pair the REF110 with an audio research REF 3, I have owned this unit from 2005 without problems, after 9 years with audio research tube power amps I have suffered 3 crashes: in 2005 with a VT100 MKIII, in 2008 with this REF110 and now with the same unit (and the same left channel which PCB was replaced in 2008).
In the 2 first failures I could change the PCB applying warranty, now I will have repair it. I think I will have to replace 2 resistors and 1 tube socket.
My speakers are Proac D38, 4 ohm, 90 db sensitivity.
I pair the REF110 with an audio research REF 3, I have owned this unit from 2005 without problems, after 9 years with audio research tube power amps I have suffered 3 crashes: in 2005 with a VT100 MKIII, in 2008 with this REF110 and now with the same unit (and the same left channel which PCB was replaced in 2008).
In the 2 first failures I could change the PCB applying warranty, now I will have repair it. I think I will have to replace 2 resistors and 1 tube socket.
My speakers are Proac D38, 4 ohm, 90 db sensitivity.