Audio Research VS60 amp Matched tubs

I have two new matched 6550 tubes and two old tubes on VS60 amp right now. Do I need to buy QUAD matched tubes or I can just buy other two matched tubes to replace old tubes?

Regards,
Eddy

eddy104-03-2016 1:07pm

Showing 4 responses by eddy1

eddy1 OP Details Discussions Posts This discussion Message User 146 posts 04-03-2016 at 03:46pm Copy Comment URL Report Comment Edit Delete Thank you. If I change from 6550 to all KT 120, is sound quality will be better than 6550?
eddy1 OP Details Discussions Posts This discussion Message User 146 posts 04-03-2016 at 10:01pm Copy Comment URL Report Comment Edit Delete Thank you very much everyone for your inputs. I will call ARC regarding KT120. Eddy
eddy1 OP Details Discussions Posts This discussion Message User 146 posts 04-04-2016 at 03:59pm Copy Comment URL Report Comment Edit Delete Just got off the phone with ARC tech at ARC. He said KT120 will improve sound quality but it will shorten life of transformer.
eddy1 OP Details Discussions Posts This discussion Message User 146 posts 04-05-2016 at 07:07pm Copy Comment URL Report Comment Edit Delete Thank you so much atmasphere, Eddy

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