audio Research REF 110 and KT 120 tubes


Hi

I have a REF 110 with 6550C tube
i'm looking for someone who heard the REF 110 with new tubes KT120
(i know it's possible to change them, Kalvin from ARC confirmed it)

If yes, how the REF 110 sounds ?

Patrice
atarifr

I would also be interested in how they sound in the REF 110. I think that one of the reasons ARC changed tubes is the availability of the SED "C" 6550s. I have heard that the SED "C" 6550s may no longer be in production.
I also read somewhere that replacing the 6550`s with the KT 120`s upped the power by 20 watts per side. Or maybe 20 watts total. Can anyone confirm that?

I was told by ARC that not only was the KT 120 a better sounding tube. That it would increase the power of the Ref 110 to approx 130 wpc. The KT 120 is a drop in replacement in the Ref 110.