- Feb 12, 2004
Why does my powered sub have a L and R input and there is only one output from my receiver? I purchased the sub used few years ago no instructions. Would it be better to use a Y jack and make the output into 2 or just hook it into the one input. Also should I turn the volume up all the way on the sub and the frequency and make adjustments with the receiver to the sub or use the sub to make the settings?