Join Date: Feb 2017
Location: Saint Louis, MO
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Originally Posted by thyname
I may do that (try the connection to the SB-12 NSD with no external crossover). However:
1 - the only option is 80 Hz? I am thinking my B&W CM10s can handle lower than that (rated 45 HZ at +/- 3dB, so I was thinking 60 Hz)
2 - Did you mean eight subwoofer cables in total? So dual subwoofers, two times two each (back and four from preamp to sub to amp). Which means that I have to buy six cables, as I already have two?
No, just two more. You would just use one set of inputs and outputs on each subwoofer.
Basically, disconnect the subwoofers from the sub outs, and connect them to the pre out you are using for the amp. Run the right output to the right hand subwoofer then run the high pass out to the right hand input on the amp. Then left to left. Then set the low pass to 80 on both, best you can guess as they only mark 30 Hz and 130hz, and adjust the gain so that it sounds right. Or get some white noise and level match with an spl meter.
Even though your mains can go lower than 80 Hz, the subwoofers can do it better with lower distortion, so you aren't losing anything doing it that way, it just seems like it. I have towers that go down to 38 Hz(supposedly) and I can tell that the subwoofer does a better job below 80 Hz(and possibly above, but I am happy with 80 Hz).
I'm sure there is a better way, I am far from an expert.
Emotiva XPA Gen3 3 channel
Klipsch RP 280f LR, 260f SR, RP-450c, RF-82 II SB, RB-61 II wide, RC-10 height
SVS SB12-NSD x4
TiVo Roamio, sometimes buzzy Samsung Plasma