Quicksilver V4 amps with KT150

I thought the JJ KT 88's sounded great in my V4's, both the RCA and balanced versions I owned. I bet EL34's would sound great in them too. My guess is each tube type may compliment a certain genre of music, so perhaps what you listen to most may better help make your decision. Great amps, enjoy the quickies.

That's a lot of money to take a chance on. I would call Cable Co and see if they have some KT150 that they can lend you. For some reason, I thought the V-4's took 6550's. Personally, I like them better than the KT-88. If they'll work in your amp, I would definitely consider them as well.

I recently heard the latest V4s with Kt150 tubes in an unfamiliar system set-up by a local dealer and it was just amazing to everyone present. I think that is a first for our audio group.:) While I've always admired Quicksilver and felt they were excellent at the price point and beyond, what I heard was WELL beyond my previous experience with the Quicksilver lineup and what I was expecting to hear. This aside from listening to an unfamiliar system. Power, tonality, harmonic resolution, simply put a very natural and believable presentation on all types of primarily acoustic music including small ensemble jazz, choral, piano, solo voice and orchestral.

You made a great purchase and if you REALLY want to hear what that amp is capable of I would say go for it, I don't think you'll be disappointed providing there aren't significant changes to the transformer from your V4's to the latest, only Mike Sanders can fill you in on that. I am planning on auditioning the latest Silver 88s with the 150s to see if some of that magic carries over in my system.

I am currently using Gold Lion KT-77 tubes in my Quicksilver V-4 amps. Plenty of power for my Proac speakers. Fast and sweet sounding. I have not tried the KT-150 tubes.

Congrats on buying a great sounding pair of amps.

Just curious - what was the recommended bias setting for the KT-150 tubes?