I bought 4 subwoofers and I'm absolutely not doing a DBA! Hah!


I just received shipments of 4 subwoofer drivers and they will not be going into a distributed bass array. 

I'm replacing my left and right speaker stands with powering subwoofers with 2 subwoofer drivers each.  I call them powering because they will be powering the 2-way monitors that will sit on top.  Here's a beauty shot of the insides.

The amp has all the DSP power I could need to produce perfect speaker measurements.   I wonder if JA at Stereophile would wax poetically if I priced them high enough?? laugh

1744240613802.pngeriksquires · 2025-04-09 11:17 pm at 11:17 PM

erik_squires

Very nice!

Two woofers per enclosure would theoretically give you the option of using a force-cancelling configuration.   Depending on the enclosure width and motor depth, you might even be able to keep the same overall shape, though you would probably need to move the plate amp north so that its isolation chamber doesn't interfere with the woofers. 

Hi @audiokinesis  - Thanks for your feedback.

You are not the first one to suggest that.  I’m limited by two overriding priorities:

- General dimensions of the cabinet are set by current speaker footprint.

- Hypex plate amplifiers are BIG!

The combination of that, plus chosen drivers prevented side mounting or front/back woofers.  The plate amp is just too long to allow for a woofer on the same surface.  Back to back mounting on the sides was also not possible because of the narrow width I wanted to stay within and the depth of the woofer motors.

I did take the woofer motor's ability to  rock the cabinet into account and have sloped the front baffle back by 2" to reduce the amount of possible rocking.  Also, there  are 40 lb. speakers that are going to sit on top of those cabinets.  I think that with the excess bracing I should be in good shape.

Ideally though I wanted to do something similar to Snell, putting both woofers near the floor, but alas, aesthetics and limited budget for a new home have won out.

Would it might be the FA502 you have on order 🤔 

Have that one and it's great..

@erik_squires, I should have specified that I was thinking of the woofers being side-firing (and therefore back-to-back), and now I understand that the woofer motors are too deep for that. 

I really like your idea of using the subwoofers as speaker stands, that’s a very efficient and elegant use of available floor space.  Ime in this sort of setup the imaging of the mains is improved by the use of spikes underneath the subs.  Even if you can only use one spike (like front-and-center), imo it makes a worthwhile improvement.

The only other (weird) configuration I can think of that might be worth considering is one woofer down-firing and the other front-firing.  Again you’d probably have to shift the plate amp northwards. 

Duke