By grounded internally, do you mean via the interconnect and/or power cord? If so, try a cheater plug and also check the RCAs to make sure they are not loose or otherwise not making a good connection = ground. If neither of those work, I would try an external ground to a screw or post on your pre.
Rega hum
Rotel RC-1090 pre
Rotel RB-1092 amp
Rega P5, TT PSU, Exact cartridge.
Noticed this weekend an annoying hum in the background especially with nothing playing on the TT and volume up. What do I need to do to rid this hum? I realize Regas are grounded internally. BTW, table is completely stock. All equipment is plugged into a Rotel RC-1040 power conditioner. Thanks for all suggestion.
Rotel RB-1092 amp
Rega P5, TT PSU, Exact cartridge.
Noticed this weekend an annoying hum in the background especially with nothing playing on the TT and volume up. What do I need to do to rid this hum? I realize Regas are grounded internally. BTW, table is completely stock. All equipment is plugged into a Rotel RC-1040 power conditioner. Thanks for all suggestion.