Calling all Von Schweikert VR-9 owners


Guys:

Do you know what is an acceptable level of transformer buzz for the VR-9s? The speakers have huge, 1,000W digital amps in the bass cabinets, and I'm trying to get a handle on whether noise should be audible or not--and to what degree. My electricity checks out perfectly, so that's not the issue. I'm listening in the nearfield, and combined with the fact that the speakers are 96dB with the bass boost on, maybe those factors are causing the buzz to be audible--albeit slightly--from my chair (7'+ away from speakers). My room is very quiet, so maybe that's adding to the audibility. I pulled the amps last night, and put Lock-Tight on the transformer nut and silicone on the back plate, but the buzz is still audible, albeit MAYBE a touch lower in level. FWIW, when I put my hand to the back panel, I CANNOT feel any vibration. Can anyone comment or share their experiences? Thanks!
hooper

Showing 2 responses by hooper

Thanks for the input, everyone. I'll contact B&O to see what they have to say, but I'm starting to think that the buzz is just normal transformer noise. I'm just over 7' away, and combined with the speaker's high sensitivity and my bat ears, maybe I'm being hypersensitive. And, Larry, I agree with you 110%--for what VSA charges, they SHOULD fly someone out. Even Kevin at VSA agrees with me. Thanks again, guys. Merry Christmas!
Problem solved!!! In my attempt to isolate the problem, I discovered that the issue was with internal grounding, not with the speakers at all. I've started to experiment with using different grounding schemes inside my DarTZeel amps--the amps allow you to use different configurations--and that has helped. I'll fine tune things once I get back to normal operation after the holidays. So, to summarize, the problem was NOT with the speakers at all. Sorry for causing a panic.