The foam rubber on my old Phase Tech passive sub finally deteriorated after 10+ yrs. Needed to go with a powered one anyway due to wife's new config of room which is not conducive to lots of speaker wire running to and from sub since it has to be several feet away from rest of system and cabinet and I have a tile floor so no carpetto hide it all under. My receiver (Sherwood - yeah I know) has a pre-amp out (1 line) for a sub. Question is do I just hook this up to either the left or right RCA input on the sub? Do "newer" subs have a single input source (not L & R channels) that I need to look for in my new sub that I have yet to buy? I'm a little out of touch with the latest technology, though I used to be somewhat of an audiophile back when I had my Onkyo receiver and Magnepan MGIIa speakers which I sorely hated to part with (wife again - hey, good s&x is a little more important than sound - usually) Anyway I did get to replace them with the Phase Tech's which are very good though certainly NOT in the same league in my opinion. (Would loved to have had the MGIIa's with a nice sub!)

As long as I'm at it, any recs on an inexpensive powered sub (<$200)? Reading thru the reviews now and checking eBay which has been "berry, berry good to me" so far.