I've used tube preamps with many a Krell amp over the years with no problem.If there is a problem the amp should detect it and shut down until the fault is removed. Years ago when I sold BAT and McCormack. The VK-3 would always shut down the McCormack amps as soon as they were turned on. Removing the pre from the circuit rectified the problem.
Vacuum Tube preamp with my KRELL KAV 250a, a no no......WHY?
I have an older Krell KAV amp that has been recapped and refreshed. A technician that I respect very much said do NOT use a vacuum tube preamp with my KAV 250, or any other Krell amp for that matter. Can someone with more technical knowledge than myself tell me why I should not be using a vacuum tube preamp with my Krell? Are there some technical specs that I should be aware of when pairing?
Thanks