Does anyone out there have instructions for engaging the coupling capacitors on Krell amps? I have a Krell FPB400cx, ARC ref 2 MKII and First Sound Ultimate tubes pre-amps. Is it ok to run between those? Please advise. Thanks guys.
Most modern tubed preamps catch the DC at the output and will not give you any problems with your amp. I have used 3-4 tubed preamps and not had any problems with my amps. It should be easy to find out the amount of DC at the output of the pre and check with Krell.
There is no minimum-the lower the better. My Bat preamp measured 0.002 Vdc and I haven't had any problems. I would guess anything below 0.01 or so would be fine but I'm not an expert. I talked to Krell about this and they were totally non committal.
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