Michael,
i don't know what "line level speaker outputs" is.
there's line level outputs on preamps and on some prepros, but the signal output of an amplifier is not line level, it can go as high as around 100 volts, but on preamps/prepros line level is less than a volt and the max output can be as high as around 16 volts.
prepros have low level outputs that can't drive speakers (very small amperage/low current)
power amps have high level outputs that drive speakers (many amperes/high current)
that's why preamps consume only small amounts of electricity and why power amps can consume large amounts.
hope this is clear enough. :-)
the sub is SVS PC12+. you can find info on it here:
http://www.svsound.com/products-sub-cyl.cfmthe difference is that mine is last year's and it does not have DSP and the amp is a 525 Watt BASH.
