I know the KT120's are OK in the Ref 110. They are said to bring the 110 very near to the 150 in performance. I have heard such an amp at my dealers. Whether you need some modification, I am not sure, a dealer should be able to tell you.
I have had a thread running for months re KT150's in Arc reference amps. ARC are supposed to be doing lifetime testing on this now, no words of wisdom yet
I have had a thread running for months re KT150's in Arc reference amps. ARC are supposed to be doing lifetime testing on this now, no words of wisdom yet