Love them!I'm using them with Quicksilver v4's.I believe these tubes are better for speakers that love power.My speakers run at 84.No problem with the transformers on the V4's just great sound!
Put them in my ARC VS 115. Major upgrade over old stock 6550 "winged C" tubes in every way. Be careful: not all tube amps can take the extra current load. Check with the factory before dropping them in.
Thanks Bifwynne for the update. I'm heeding your advice before ordering the KT-120 tubes. I'm checking with Jolida to see if the stock JD-502P can handle the Tung Sol KT-120 to be sure.
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