4, 12" magnum subwoofers in ported boxes. Local pickup only in Longmont, CO 80501 $450

[cameron paterson]

These are 4 Magnum 12" subwoofers in ported boxes. In the pic there are screws where I had speaker grills on the boxes. The screws got stripped so I couldn't take them out. I have 2 of these boxes sitting directly behind my spot of the couch. They slam your back with music or movies. If I were you I would put all 4 subwoofers behind your couches and everyone can enjoy the back slam! Local pickup in Longmont, CO 80501. Here is a picture of one of the boxes... and a link to the subs online for specs and T/S parameters:
Denovo Audio Magnum-12 Woofer (diysoundgroup.com)

These boxes were flat packs from DIYSG so they are good well braced boxes and the right size for this subwoofer. Price drop to $450 local pickup.

 

[TLS Guy]

These are 4 Magnum 12" subwoofers in ported boxes. In the pic there are screws where I had speaker grills on the boxes. The screws got stripped so I couldn't take them out. I have 2 of these boxes sitting directly behind my spot of the couch. They slam your back with music or movies. If I were you I would put all 4 subwoofers behind your couches and everyone can enjoy the back slam! Local pickup in Longmont, CO 80501. Here is a picture of one of the boxes... and a link to the subs online for specs and T/S parameters:
Denovo Audio Magnum-12 Woofer (diysoundgroup.com)

These boxes were flat packs from DIYSG so they are good well braced boxes and the right size for this subwoofer. Price drop to $450 local pickup.

You can get those broken screws out. You drill a hole in the broken screw the right size to take the correct "Easy Out". This device has a reverse thread and when put on your drill and make a thread in the broken screw it will remove the broken part of the screw.

You must have used nasty Chinese screws. Tip: - only buy American screws, nuts and bolts. That means not buying at places like Home Depot.