I posted a thread earlier this morning about a pair of rt20P's that one of the towers subs (mw8003) and the mid-range(mw7009) are gone. The other tower sounds wonderful. My question is, "Can anyone tell me what way I should go about fixing the problem"? Would it be cheaper to send them into Polk or buy somewhere else? I picked these up yesterday for $40.00. I'm also a greenhorn to the forum so bear with me. Thanks. I also own a pair of sda-2b's that are the bees kneez and a pair of Monitor 4's. I'm pushing them with a Pioneer elite A-88x.