Thanks guys. Sorry for the late coming. For the time being bought a new sub-woofer cable. There maybe a slight improvement in performance, the old one was a thin one relatively. The main advantage however is that now, instead of switching the power on and off, pulling out the LFE in at the sub and what not, all you have to do is pull out the LFE and put it back and the sub switches on from standby, of course with the usual pop.
That's an improvement.