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ARC VM 220 WITH VANDERSTEEN WOOD QUATRO

I am looking for a little guidance, The pre is ARC LS 25mk2 and the amp is ARC VM-220 mono's hook-up to a set of Wood Quatro's. When i turn up the volume past half way, I seam to be losing the warmth of the tubes, Its sounds alittle (forced, less detailed) not sure how to explain it, just different. I biased the tubes all at 65. was wondering if i need to switch to Tung-sol KT120 tubes or go with a different set of speakers, higher in sensitivity, or is this headed in the wrong direction.thanks
sjwholesale
sjwholesale OP
9 posts
 
I made the call to John, and he was very helpful as usual, I should have called him first, just didnt want to bother him, He made a couple good sugestion, first recalibrate the pots, we calculated different speaker locations, He will be sending a demo pair of interconectors, I will be getting different driver tubes (6n1p) new old stock from him. and moving the component rack out of the middle of speaker, to a side wall. I let everybody know this weekend, thanks
theduker's avatar
theduker
53 posts
 
I have vm220s and it is possible to clip them, this depends on your preamp voltage, and the voltage of the source component. Sorry, that's as much as I can say without coming over to your house, I run mine in a way that they don't sound distorted, clipped, or compressed, they play clean, or I turn them down. Your equipment will let you know if you are pushing it too hard, listen to it (so to speak).
theduker's avatar
theduker
53 posts
 
I have the tungsol kt120 in the vm220 and I believe there would be a difference. If you believe bob latino's website, he seems to indicate there is an 8% increase, or so, and that's on his amps, but he does have a graph that's convincing. But ymmv.

i Also i have 3 VTL mb450 and I switch back and forth, coke or 7up?

I don't know what tubes might possibly lack. Biamp if you wish?
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