Problems with my Berning ZH270

George, my observations match those of Allan. If you follow his advice, and still have a problem with the high frequencies, I would again direct you to the Marigo dots, especially on windows.

You are in for a treat with Andy Bouwman's matched tubes. I recently put a pair of Andy's Sylvania 6SN7 tubes in the input section of my OTL amps and the high frequency performance was just outstanding. I have a complete set of Andy's Sylvania 6SN7's in my preamp and they were a great upgrade as well. His tubes are expensive, but well worth the cost IME.

If you end up trying the Marigo dots, I would enjoy hearing about your results. BTW, do you have windows in your listening room?

George, Andy's phone number is 616-454-3467, you may also want to try the ERS kit, it's substantial, as I am sure all the other Berning owners will tell you, it's more than any tube change.

Hi Allan and thank you. For wellfed, I have 2 windows covered by courtins, thanks.

it's gotta be your cdp.
don't let antone tell you that the solution lies in changing your tubes. i have the same rig except i have a capitole mkI cdp. no brightness at all - just great music!!

Can Allan describe the ERS kit oor the zh-270 as to what it entails and how much it costs? Thanks, Mike Cassidy