Hi Manu4Panjab,
A quick question slightly out of the way: I believe you're experiencing low or ineffective output from your sub. Have you tried using a 'Y' splitter and using both the inputs of your subwoofer? Most subwoofers would have two inputs, whereas the AVR would only have a single LFE out, so most of us end up connecting the LFE out to one of the sub inputs. Unless the sub manufacturer specifies otherwise, you've got to use both the inputs for best results. Hence the use of a 'Y' splitter, which would split the single LFE out to two connections for L & R input of the sub. This would give a +3db output typically.
regards,
Nitin.
