IF you only have one set of PREAMP OUTS in the abovementioned STEREO setup, you may want to use 2 separate Y-cords and effectively 'MULT' the left and right outputs one set goes to your power amp the other set goes to the sub.įirst before we go any further is the LFE issue: THE SUBWOOFER OUTPUT IS NOT LFE !!!!!!!!!!!!!Īgain: THE SUBWOOFER OUTPUT IS NOT LFE!!! a 'stereo', Then you would typically want to use 2 RCA-RCA wires from the preamp outs to both the sub inputs then you have the stereo summing taking place inside the sub which gives you mono bass while preserving the stereo signal separation going into the main amps. IF at this point you put a Y cord at the sub you are doing exactly the same thing as raising the level 6dB this is because you are summing 2 coherent inputs (voltages). The sensitivity of the sub, its panel markings, the settings in the receiver and so on all should properly track together to give a pretty close correct level in the room when everything is set to its relative '0' positions. If you are using a HOME THEATER receiver wih bass management, and have ONE sub out connector, then run ONE RCA-RCA wire. Sorry, but it the answers abov are a bit on the vague side here is the whole story:
