Thanks, all. To update those of you who have so generously offered detailed suggestions:
1. I worked the phone plugs (I knew it was not phono but had a senior moment) on the sub output and the speaker input several times, and then sprayed the jacks and plugs w Caig De-oxidit5, cleaned w Q tip and then re-plugged.
2. Started up system again, same issue BUT it was about 50% lower in volume AND one speaker seemed to be lower in volume than the other.
3. Shut off Wireless router and music server, both of which could be source of RFI. Shut off flourescents. Had tried both before, but lets start w fewer variables and build from there.
4. Powered up M00 and S00, whine still there.
5. Contemplated my navel and the mysteries of the universe for about 5-10 minutes, cursing softly under my breath (wife sleeping).
6. Right speaker pops and whine stops.
7. Left speaker pops and whine stops.
8. Breath big sigh of relief. Turn wireless and flourescents back on and power up again. Notice power pilots on monitors are off. Cycle sub off and on (auto-off feature on monitors). Monitors light up, whine comes back.
9. Resume cursing.
A couple of questions for Almarg and/or Casouza, and/or anyone else that cares to offer their $0.02-
1. The sub and the monitors are both powered but the power supplies are internal. The monitors have conventional captive 3 prong cords; the sub has an IEC type inlet but w only 2 blades, and a 2 prong/slot cord. Does that affect your advice in any way?
2. Should I try to run the rig from a DAC/headphone amp with a volume control that controls RCA outs as well as headphone socket, w/o the PVC (PC model)? I'd like to avoid any software based volume control but was wary of the DAC/headphone amp overloading the phone jack inputs of the amps in the speakers. I thought one of the benefits of the PVC was supposed to be transformer isolation of audio from the PC?
3. Since my home uses cable for internet, TV and phone, can a ground loop develop btwn the cable and the M00/S00 even though they are not physically connected in any way?
All comments welcomed. None will be mocked!!!
1. I worked the phone plugs (I knew it was not phono but had a senior moment) on the sub output and the speaker input several times, and then sprayed the jacks and plugs w Caig De-oxidit5, cleaned w Q tip and then re-plugged.
2. Started up system again, same issue BUT it was about 50% lower in volume AND one speaker seemed to be lower in volume than the other.
3. Shut off Wireless router and music server, both of which could be source of RFI. Shut off flourescents. Had tried both before, but lets start w fewer variables and build from there.
4. Powered up M00 and S00, whine still there.
5. Contemplated my navel and the mysteries of the universe for about 5-10 minutes, cursing softly under my breath (wife sleeping).
6. Right speaker pops and whine stops.
7. Left speaker pops and whine stops.
8. Breath big sigh of relief. Turn wireless and flourescents back on and power up again. Notice power pilots on monitors are off. Cycle sub off and on (auto-off feature on monitors). Monitors light up, whine comes back.
9. Resume cursing.
A couple of questions for Almarg and/or Casouza, and/or anyone else that cares to offer their $0.02-
1. The sub and the monitors are both powered but the power supplies are internal. The monitors have conventional captive 3 prong cords; the sub has an IEC type inlet but w only 2 blades, and a 2 prong/slot cord. Does that affect your advice in any way?
2. Should I try to run the rig from a DAC/headphone amp with a volume control that controls RCA outs as well as headphone socket, w/o the PVC (PC model)? I'd like to avoid any software based volume control but was wary of the DAC/headphone amp overloading the phone jack inputs of the amps in the speakers. I thought one of the benefits of the PVC was supposed to be transformer isolation of audio from the PC?
3. Since my home uses cable for internet, TV and phone, can a ground loop develop btwn the cable and the M00/S00 even though they are not physically connected in any way?
All comments welcomed. None will be mocked!!!