Linear Array subwoofers

So I got these subwoofers in 2007, never had a plan for them, but I thought they were pretty cool.

Today I got a idea for them!

I present, the tymphany LAT250 subwoofer!
Its got 10 speaker cones each (5 going one way, 5 going the other), and each driver is the same as a single 8 inch subwoofer, but produce no vibration due to the design.

They just happen to fit perfect into the cubby behind my seat. With the proper grill, I will be able to still use some of the space there too.

Plan is to fiberglass a enclosure that slips into the cubby, the mount these along with a tube shaped metal grill to cover them and keep them protected.

Here are some of the tech specs on them. While not thumping bass machines, they put out a really clean bottom end. Alpine made a much larger version (PLV5 and PLV7)
https://www.parts-express.com/pedocs/specs/299-850-tymphany-buyouts-specifications-46410.pdf

 

@5nahalf I remember when those came out. Kinda cool for getting a lot of cone area in a minimal mounting area. And you're right, for an under seat subwoofer where the mounting surface is super skinny it would be a great idea.

However, I modeled those subwoofers and the models aren't good at all. Not trying to burst your bubble but I AM trying to keep you from wasting a ton of time on something I think will have poor results (regardless of your execution).

If I've modeled the speakers correctly, you'd need almost 2 cubic feet to make the bottom end remotely flat with the upper bass. Even then, you'd have to tune the port extremely high (38hz+). Trouble is, there's only barely 1cubic foot of airspace down there and that's for a sealed box. If you port, you'll lose airspace to the port volume (I speak from experience here). I think the main problem with the speaker itself is the extremely high FS spec (60hz). These little guys just aren't cut out for sub duty but might do better as midbass drivers. I think Tympany made a 500 and 700 version that would work better for this type of thing. I modeled the 500 version and it's response looks much better but still requires 2 cubic feet.

 

Hmm never seen something like this before

 

Thanks for the info! Ive always wondered if they would sound good. Ive hooked them up a few times, but never in a box. Maybe Ill just make some nice bookshelf speakers with them then and stick with a single 8 behind the drivers side.