Originally posted by Tiglath:
I am in a similar situation. I have two JBL 18" 300W powered subwoofers I want to try and compared with the B1s and keep what sounds best, in a dual PAS home theater/studio set up.
The JBL subwoofer frequency range (-10dB) is 38-300 Hz, and the frequency response (±3dB) is 50-300 Hz but you say the L1 will only pass 40-189 at best?
Will the PAS drive it correctly?
I know that some synching will not occur and it might not sound as tight, but those JBLs are not to be sneezed at. For one they are much bigger *active* subwoofers compared to the B1 smaller passive ones, not that size always translated to quality, but I need to A/B them, then I'll know.
Maybe I don't understand it, but why not just put the non-Bose subwoofer on the Bass Line Out (black)?
Oldghm has certinaly the correct advice. You can easily connect any active sub to the "Bass Line Out". You may have to play around a liltte with the level control on the sub to get the spectral balance, other than that it should be plug and play.
Personally, I'm not a big fan of going deeper than 40 Hz, since in nearly all live cases it just adds some indistinct rumble and makes things muddy.
There is virtually no recorded music out there with any appreciable spectral content below 40 Hz. The only exception are movie sound tracks, but there it is mainly used for sound effects and not in any musical way.
You do NOT need 30 Hz to adeqautely reproduce the low B string of a 5-string bass. In fact most of the energy is in the harmonics an not the fundamental frequency and you get much better bass definition by going easy on the very low frequencies.