New Magneplanar Bass Panel DWM

Josh here is what magnepan says about it
http://www.magnepan.com/using_DWM
Phasing-- Imagine scribing a line on the floor at the same distance as the speakers by using a string attached to the listening chair. The Bass Panel can be placed anywhere on this equi-distant arc. However, this equi-distant arc needs to be 12 inches closer to the listening seat for optimum phasing.

Harri, absolutely. I wasn't suggesting otherwise, just pointing out that they can be hidden behind furniture (per Magnepan). They can even be inside it. But they do have to be located on the speaker arc, 12" closer.

I want to hook 2 bass panels to nice studio book shelf speakers.    Worth a try  ?  Bad idea ? I know there not subs.   But should go lower.  Yes?

I had one with my 3.7i's.  Do not expect them to sound anything close to a sub because they don't.

twoch---Lower, no. The DWM doesn’t play lower than the MG3.7, or even the 1.7. But it does provide more output above the frequency at which Maggies start rolling off---40-45Hz. It’s NOT a sub, it’s a bass driver.