Pacha VIP/Donor Apr 23, 2014 145 157 435 Jan 3, 2024 #1 I've just upgraded my ARC Ref150 amplifier to KT150 tubes from the stock KT120s. The manual states adjust bias to 65mVDC for the KT120 tubes. My question is what should I set the bias to for the new KT150s? Any suggestions greatly appreciated.
I've just upgraded my ARC Ref150 amplifier to KT150 tubes from the stock KT120s. The manual states adjust bias to 65mVDC for the KT120 tubes. My question is what should I set the bias to for the new KT150s? Any suggestions greatly appreciated.
Argonaut Well-Known Member Jul 30, 2013 2,460 1,676 530 N/A Jan 3, 2024 #2 I would recommend staying with 65mVDC
Pacha VIP/Donor Apr 23, 2014 145 157 435 Jan 3, 2024 #3 Argonaut said: I would recommend staying with 65mVDC Click to expand... That was my first guess also. Thank you for the reply.
Argonaut said: I would recommend staying with 65mVDC Click to expand... That was my first guess also. Thank you for the reply.
Pacha VIP/Donor Apr 23, 2014 145 157 435 Jan 3, 2024 #4 Just heard from ARC, and their answer is the same. Stay with 65mVDC. Reactions: Argonaut