By the look of the preamp (http://www.anthemav.com/OldSitev1/pdf/pre1l.pdf) it is well shielded - looks like a steel chassis weighing 20 pounds. However, from the picture it appears that the RCA input plugs are mounted on a circuit board and the ground hookup may be loose or a "dry" joint. The preamp must be at least 10 years old >From this thread http://forums.slimdevices.com/showthread.php?t=60122 it appears that the SB3 expects to be grounded through the interconnect shield and if that was not grounded at the preamp then it could make the noise you describe - like the noise you got when you plugged in a magnetic P/U cartridge in a turntable and didn't have the RCA plug to your preamp plugged in all the way. Can you get hold of a multimeter to check if the outside of the RCA input sockets on the preamp are grounded ? Or better still, take the SB3 and preamp to the amp builder and show him the problem.
-- Wirrunna A camel is a racehorse designed by a committee. ------------------------------------------------------------------------ Wirrunna's Profile: http://forums.slimdevices.com/member.php?userid=3225 View this thread: http://forums.slimdevices.com/showthread.php?t=63455 _______________________________________________ discuss mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/discuss
