Short Version: Would a McIntosh MC275 amplifier be powerful enough to power a single SVS CS20-39 subwoofer? If not, what is the minimum power I'm going to need? Longer Version: So, I've recently been bitten hard by the upgrade bug. Last week I received my HK 235 and am so happy with the results that now I realize how horrible the $40 sub I'm using is. My roommate deals in antique radios and has access to a a few amps. Since I'm on a budget, I was considering buying a CS series sub to save on the price. Also, when I have my own place, I figured I could add another CS 20-39 and use a single amp to power both of them. Does this sound like a good idea, or should I just save up for the PCi series and be done with it?