FREE Shipping On All Items Over $100

JBL® GT-12BP Car Subwoofer Box

Model #: GT-12BP
JBL Car Audio
At a Glance
JBL® GT-12BP Car Subwoofer Box with slot vent and durable construction
$239.99Save $NaN
You Might Also Need

Protection Plans

Square Trade by Allstate Protection Plan 2 Year Parts & Labor Warranty $200 - $249.99


x 1

Square Trade by Allstate Protection Plan 4 Year Parts & Labor Warranty $200 - $249.99


x 1

Get to know this product.

Some car audio fans love the clarity of sealed subwoofer enclosures. Others crave the added power of vented enclosures. The GT-12BP bandpass subwoofer offers both. It delivers accurate bass response and thundering power—as well as a bold look. The stylish box features a look-in acrylic window shaped like the JBL exclamation point, making the GT-12BP as appealing to the eyes as it is to the ears. And the sturdy enclosure shields the 12-inch polypropylene woofer from items that might shift in your trunk. The great value GT-12BP proves you don’t have to spend a fortune to enjoy legendary JBL bass.

Injection-Molded Polypropylene Cone

  • The polypropylene woofer cone in the GT-12BP is engineered for superior rigidity, reliability and sensitivity. The result is increased low-frequency output and powerful, natural-sounding bass.

Slot Vent

  • The GT-12BP’s enclosure is vented, which enables the subwoofer to deliver ultra-low bass at higher sound pressures levels than a sealed enclosure.

Acrylic Window

  • Some subwoofers are meant to be seen as well as hear. The GT-12BP features an acrylic window shaped like the JBL exclamation point and orange illumination, so you can look into the enclosure and see what legendary bass looks like.

Durable Construction

  • The GT-12BP bandpass enclosure doesn’t just produce signature JBL bass performance, it protects it. The rigid box keeps the woofer safe from anything that might slide around in your trunk.


Enclosure Type:Slot Vent


Maximum Power Handling:1200
Sensitivity:93 dB
Frequency Response:45Hz – 130Hz



Misc. Specs

Manufacturer Warranty1 Year
Width (in.)18.75
Color Finish NameBlack
Depth (in.)16.25
Height (in.)15.38
RMS Power Handling (Watts)300
Mounting Hardware IncludedNo
Peak Power Rating (Watts)1200
Subwoofer Size12"
Satellite Radio ReadyNo
Water ResistantNo
WarningProposition 65 Warning for California Residents