greg_mc
Grip
- Joined
- Dec 2, 2003
- Messages
- 24
I have a problem to solve with my subwoofer configuration. I bought the following items from Parts Express.
Qty Part Number What
4 261-400 Coax to RCA wall plate w/091-1200
1 261-406 Coax to RCA wall plate (4 RCA plugs)
I am on the final stages of completing a dedicated home theatre. I ran in-wall LFE runs (RG-6) to all four corners of the room and will only use one location at a time. Not sure where will be best location for subwoofer so wanted to build the room to be flexible. I brought all four cables to the rack room. I installed part number 261-400 at the wall to convert coax cable to an RCA plug at all four corners. In the rack room I had all four RG-6 cables terminated to part number 261-406 so I could patch LFE signal to any corner of the room. My thought was to send the LFE signal from the A/V receiver to part number 261-406 in the rack room using monster subwoofer cable. In the home theatre at the corresponding corner, I connected (with monster subwoofer cable) the LFE input on the subwoofer to the wall (part number 261-400) as both ends of cable are RCA. Well, this is where the problem starts, when I plug the powered subwoofer into the wall, the subwoofer starts a humming sound. Unplug the cable from the wall and sound goes away. I then ran the subwoofer cable directly from the receiver to the subwoofer and everything works like it is supposed to. So I am using correct output from receiver and correct input on subwoofer. If I touch one end of subwoofer cable while it is plugged in subwoofer, I get same humming sound. Any advice on how to solve my humming problem?
Cheers,
Greg
Qty Part Number What
4 261-400 Coax to RCA wall plate w/091-1200
1 261-406 Coax to RCA wall plate (4 RCA plugs)
I am on the final stages of completing a dedicated home theatre. I ran in-wall LFE runs (RG-6) to all four corners of the room and will only use one location at a time. Not sure where will be best location for subwoofer so wanted to build the room to be flexible. I brought all four cables to the rack room. I installed part number 261-400 at the wall to convert coax cable to an RCA plug at all four corners. In the rack room I had all four RG-6 cables terminated to part number 261-406 so I could patch LFE signal to any corner of the room. My thought was to send the LFE signal from the A/V receiver to part number 261-406 in the rack room using monster subwoofer cable. In the home theatre at the corresponding corner, I connected (with monster subwoofer cable) the LFE input on the subwoofer to the wall (part number 261-400) as both ends of cable are RCA. Well, this is where the problem starts, when I plug the powered subwoofer into the wall, the subwoofer starts a humming sound. Unplug the cable from the wall and sound goes away. I then ran the subwoofer cable directly from the receiver to the subwoofer and everything works like it is supposed to. So I am using correct output from receiver and correct input on subwoofer. If I touch one end of subwoofer cable while it is plugged in subwoofer, I get same humming sound. Any advice on how to solve my humming problem?
Cheers,
Greg