1100-Watt, 12" Single-Voice-Coil Subwoofer

$99.9599.95 each
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Are you behind the wheel? Or in the front row at a live concert? The GT5-12 will actually make you think about this question. It combines classic elements with modern JBL engineering breakthroughs. Check out competitors at a similar price point – you won’t find a more solid motor structure, or one that can handle more of whatever intense bass assault you can dish out.

Item# GT5-12

General Specifications

Size 12"
Series GT5

Audio Specifications

Peak Power 1100W
Nominal Impedance 4 ohms
Power Handling (RMS) 275W
Frequency Response 27Hz–450Hz
Power Handling (Peak) 1100W
Sensitivity (2.83V/1m) 90dB


External Diameter (in) 12-5/16
External Diameter (mm) 313
Mounting Depth (in) 6-7/16
Mounting Depth (mm) 164
Mounting Cutout Diameter (mm) 286
Mounting Cutout Diameter (in) 11-1/4

Woofer Specifications

Mechanical Q (Qms) 6.39
Magnetic Gap Height (Hag – in/mm) 0.315/8
Motor Force Factor (Bl – Tm) 15.2
Voice Coil Height (Hvc – in/mm) 1.43/36.4
Maximum Excursion (Xmax –in/mm) 0.56/14.2
Suspension Compliance (Cms – ?m/N) 135
Free-Air Resonance (Fs – Hz) 29
Driver Radiating Area (Sd – in2/cm2) 82.15/530
Voice Inductance @ 1kHz (Levc – mH) 1.26
Diecast Aluminum Frame No
Voice Coil DC Resistance (Revc – ohms) 4
Vented Polepiece Yes
Surround Hi-roll rubber
Electrical Q (Qes) 0.64
Low-Frequency Transducer 12" (305mm) Polypropylene cone
Compliance Volume (Vas – ft3 / l) 1.9/54.2
Voice Coil 2" (51mm) diameter
Progressive Spider Yes
Total Q (Qts) 0.58
For a complete list for all specs for this product click below

Spec Sheet

English 242 KB
  • (1) GT5-12 12” Single 4-Ohm Subwoofer
  • (1) Owner's Manual

1 Year Warranty

Products purchased online or from an authorized local retailer and under warranty may qualify for an exchange with a valid receipt.

Purchases made from an unauthorized dealer will not be eligible for exchange.

Call us: 1.800.336.4525

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