Opinions on VTL preamps

Chayes...just swapping your positive and negative speaker inputs isn't gonna cause the problems your talking about, it wont cause ANY problem just polarity issues.
either you left something out or I misread it

no problems in last six months.It will make horrible noises if i forget to turn the rest of the system on before the amps.may be they where loaded up or something.they work fine now and keep getting better.I figured it was the speakers polarity.Its very dark in my listening room,ecept for the glow from all the tubes.

I cannot report on anything VTL, except that my dealer here in Austin is a nightmare......... so I don't buy anything from them including VTL. I sent my ARC VT200 in to the factory, all was great. Nice people fast dependable service.