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)
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.
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