Quicksilver V4's- KT88's or EL34's ?


Which tubes do you use with your Quicksilver V4 Monoblocks, KT88's or EL34's? If you prefer one over the other, please explain why. I am using Telsa KT88's now and love the sound. I'm considering trying the Telsa EL 34's just to try them and see how they sound and maybe do something a little different for awhile. Thank you very much. PS My speakers are VSA VR4jr's.
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Sorry, they're KT-88's from( tubedepot.com/6550kt.html) for $99.95 (pair). I ordered matching quads because I could. I haven't had any issues with the Genalex's reissues so I bought a backup set also.
I collect vintage tubes so I have tried a load of them. I like the Mullard Blackburn's - they are smooth and work well versus other El34's I have tried. I like the top-end and reasonable low-end. They are nice although costly these days.

That is a shame - but they are not making vintage tubes anymore. The new El34's can sound as good as the vintage tubes but the overall quality of the build is not as high.
I'm running the Tesla EL34s and they sound great. You'll notice a change in detail and bass coming from the KT88s, in my opinion.
Thanks again. My wonderful wife is buying me the Tesla EL34's for Christmas! I am looking forward to trying them out. Like I said earlier, I love the V4's with the KT88's. I am just very curious in trying out EL34's in them.