Yep. Active shielding actually. This is a known problem with the FPB series of Krell amps when used with SE (RCA) preamps. These amps are differentially balanced (only) so they only have balanced XLR (for connection to other brands of differentially balanced preamps like the Ayre K-1xe) and CAST (propriety for connection to Krell preamps) inputs, no RCA.
I don’t know if I would have preferred the Fire preamp to my K-1xe overall, but it is a very fine sounding preamp. The Fire’s external powers supply is the beefiest I have ever seen for a preamp. If you are ever in the market, you should give one a try.
Best to you,
Dave
I don’t know if I would have preferred the Fire preamp to my K-1xe overall, but it is a very fine sounding preamp. The Fire’s external powers supply is the beefiest I have ever seen for a preamp. If you are ever in the market, you should give one a try.
Best to you,
Dave