ratso;312151 Wrote: > yes, but my preamp isn't - hence the need for rca to xlr as the ground > loop is occuring between the preamp and the amps (no ground loop if > preamp is taken out of mix and transporter goes directly into amps).
But surely, if you have balanced-input power amps, you'd want to use a balanced pre-amp? Anyway, the thing is you should not be getting a ground loop in any circumstances...unless something is wrong. I know US wiring is different to the UK, but I've wired up studios with a mix of balanced and unbalanced items (over 50 pieces of gear) and had no ground loops. Normally a ground loop occurs where there are multiple parallel paths to earth...or sometimes NO paths to earth. I think you said that TP+power amps = OK?, but TP+Pre+Power Amps = hum? Is everything plugged into a single power strip? Can you hear the hum when there is no music playing? - does it go away if you unplug the TP from the mains? -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber & Chord cables ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=48882 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
