For many years had a sony xbr400 and bought a sd840 sony reciver. Then bang ran outa money. Now years later ive gotten a 'cheap' set of Sony HT-DDW750 Sub/ 5 Speakers off ebay for almost nothing. I know that they are going to be overpowered so ill have to keep the sound down. Question is, on the receiver there are 2 connections for the subwoofer.. is that for 2 subwooferes or do i need to get a y-connector to connect to the single connector on the subwoofer? Also, excluding the higher power issue of the receiver, anything i should watch out for, given that it was suppose to be a cheap receiver for these speakers vice the sd840. Also, ill be buying a basic roll of speaker wire for the center,front and rear speakers.. Given im not trying to be high end so dont need nothing fancy, will any speaker wire do the job or do i need a specific gauge? tks in advance.