Connect Multiple Subwoofers
Subwoofers deliver powerful bass sound that adds realism to movies, music and television programming in home theater. Self-powered subwoofers contain their own built-in amplifier, so they do not place demands on the receiver, which is free to drive the other speakers in the Surround Sound system. Connecting multiple subwoofers to an audio system requires additional subwoofer cables and a Y-adapter to split the signal. Virtually all receivers are equipped with at least one subwoofer jack, which can be adapted to connect two subwoofers. On receivers with the subwoofer jacks, those can be expanded to accommodate four subwoofers, which is enough to knock books off shelves.
Instructions
1. Place the subwoofers on opposite ends of the room, preferably to the left and right of the main seating area, anywhere the subwoofers won't be underfoot. Position each subwoofer so the cabinet is at least four inches from the wall, which can absorb sound and diminish the bass output.
2. Insert the plug on an RCA Y-adapter into each "SUB OUT" jack on the back of the AV Surround Sound receiver.
3. Plug a subwoofer cable into each jack on the Y-adapter.
4. Run each cable to the back of a subwoofer and insert the plug in the "LFE IN" (Low Frequency Effects) or "SUB IN" jack.
5. Connect the subwoofers' electrical cords to power strips and plug the strips into a wall outlet.
6. Adjust the volume control knob on the back of each subwoofer to the desired level, then adjust the crossover setting knob to the desired frequency. The crossover setting tells the subwoofer which audio frequencies to reproduce (low frequencies) and to pass the rest of the sound spectrum on to the Surround Sound speakers. Generally, the crossover setting should be set as high as possible so the subwoofer only produces deep bass effects, although the level is a matter of personal preference. Set the crossover to the level that sounds best for the room.
Tags: crossover setting, Surround Sound, Connect Multiple, Connect Multiple Subwoofers, each jack