JBL - MTC-300BB12 - BACKBOX FOR 12" CONTROL 300 SERIES DRIVERS

Marsoni

M251S

$213.50

Get it in 3 business days with 1 day shipping. Friday, May 29

JBL - MTC-300BB12 - BACKBOX FOR 12" CONTROL 300 SERIES DRIVERSMTC 300BB12 3 Cubic Foot Rectangular Backbox for Control 300 Series 12" Drivers, Fits Control 321C, 321CT, 322C, 322CTCT & 312CS, Extra thick 16 gauge Metal Construction, Lined with 0. 5" (12mm) thick MDF to eliminate resonances and to provide extra bass response, Dual mounting system for baffle, Mounting studs for MTC 300T150 70V 100V transformer, 12. 6" (324mm) Height x 23. 1" (587mm) Width x 19. 9" (505mm) Deep, UL Listed, Mounting Screws included

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I wear these socks daily. They truly don’t show with my workout shoes or with hey dudes. But the best thing about them is that they actually stay on your foot. I work out hard and I don’t ever have to pull them up. I do wish they were just a little bit thicker than they are, but they are definitely a product I will buy again.

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Reviewed in the United States on May 22, 2026

Verified Purchase

Chris Stockbridge

Fort Morgan, US

★★★★★ 5

Worth the investment

Size: 1 Panel, Size: 1 Panel

I had to order this in an emergency. To put it in brief words, I live in a two level studio unit. My bedroom TV fell backwards off the bureau accidentally and down the stairs to its demise. Putting this together was no problem, instructions were thorough and easy. It came with several bars that connected together smoothly and an Allen key for the brackets and screws for the feet. I did one less horizontal bar on top and bottom so it could fit, which was great because with all of them on it was too long. However I ran into the difficulty of the horizontal bars popping out of the brackets during the last stages, but eventually got it done. I was also looking for a specific type of divider where I could adjust the feet so I could tuck it in between the dresser and banister. Glad I made this purchase.

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Reviewed in the United States on February 19, 2026

Verified Purchase

Interloper

Waukegan, US

★★★★★ 1

You Get What You Pay For! A Piece Of Junk!

Size: 1 Panel

Flimsy and a piece of junk. Don’t waste your money. Assembly is a pain because it is so flimsy. Divider is thin. You can see right through it. Very wobbly.

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Reviewed in the United States on February 25, 2026

Verified Purchase

JAMES HAYES

Chelsea, US

★★★★★ 4

Instructions are useless

Size: 1 Panel

The instructions are poorly written and not very helpful. The divider itself is easy to assemble, and honestly, it would’ve been quicker if I had skipped the directions altogether. Once put together, though, it works as intended.

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Reviewed in the United States on February 20, 2026

Platinum Motif

Natrona Heights, US

★★★★★ 5

This was the best

Size: 1 Panel

This divider is great for creating a little privacy or separating a small area without taking up much space. The fabric is thick enough to block visual clutter, and the frame is lightweight but stable once it’s opened. It folds flat for storage, which is convenient if you only need it occasionally. Assembly was straightforward, and it was the perfect size. It’s a practical piece for apartments, studios, or home offices where you want a quick, temporary partition.

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Reviewed in the United States on April 14, 2026