Order before 2p.m (EST) for same day shipping


JBL – S3-1224

$239.95 $199.95

SKU: S3-1224 Categories: ,


JBL – S3-1224


SSI™ (Selectable Smart Impedance)

Most car audio system designs call for 2- or 4-ohm impedance. Series III subwoofers feature an exclusive dual impedance switch that lets you choose either load impedance option. Not available from any other manufacturer, SSI lets you reconfigure your system by simply flipping a switch.

Aero-cooled voice coil

The Series III voice coil significantly increases power handling and improves reliability by going with the flow—of air. The woofer’s motor channels air pumped by the cone movement past the voice coil, and the voice coil former exposes the coil’s inner and outer surfaces to the airflow. This aero-cooling design is unique among aftermarket subwoofers.

Oversized voice coil

The three-inch (75mm) voice coil proves you don’t have to be a heavyweight to pack a serious punch. It handles more power than conventional two-inch voice coils, yet it’s lighter than four-inch voice coils. It strikes the perfect balance between thermal power handling and low mass.

Premium screw-down terminals

Power is the lifeblood of any subwoofer. The terminals on the Series III accommodate up to 8-guage wire (8.37mm2 cross section), which transfers low-resistance, low-loss power to the woofer, even over long wire runs. This ensures the subwoofer—and your music—has the power it needs.

JBL – S3-1224
Voice Coil Single
DC Resistance (Ω) 2 & 4 ohm (selectable) (Ω)
Peak Power (Watts) 1500W
Continuous Power (RMS) 500W
Sensitivity 92dB
Effective Frequency Range 25Hz – 175Hz
Cone Material Polypropylene
Surround Material Butyl Rubber
X-MAX 0.47″
Thiele/Small Parameters
Resonance Frequency (Fs) 28.84/29.07
Mechanical Q Factor (Qms) 4.29/2.56
Electrical Q Factor (Qes) 0.53/0.58
Total Q Factor (Qts) 0.47/0.47
Port Information 4″ x 11.7″
Free Air No
Recomended Box Volume Sealed .75 Cu ft.
Recomended Box Volume ported 2.5 Cu ft.
Mounting Hole Diameter 11 – 1/8″
Top Mount Depth 7″
Bottom Mount Depth 6 – 1/4″
Grille No
Warranty 1 Year



We also sell complete install packages (radios, speakers, etc.) that ensure you get every major component you need to make your purchase and installation as easy as possible. Please feel free to contact Customer Service with any install/package questions at 1-844-30AUDIO, Ext.1, or message us through eBay.

NOTE: We advise that you retain all factory screws or other fasteners when removing the factory speakers as these may be necessary when installing your new aftermarket speakers. Depending upon vehicle configuration, other fasteners may be required.

DISCLAIMER: This fit guide has been researched to the best of our ability with the most current available vehicle information. The information provided is only to be used as an approximate guide.

Different trim levels and/or factory premium audio systems may cause your particular vehicle’s specifications to differ from the specifications offered in this fit guide. Volunteer Audio recommends that you check your vehicle for proper fitment, or consult your professional installer, prior to determining your actual speaker size.

You should also consider the mounting depth, overall diameter, and cut-through diameter of the speakers to ensure that they fit properly without hindering operation of any windows or internal OEM parts.

Additional information




Country of Manufacture


Voice Coil


Maximum Power

RMS Watts

Frequency Range


Woofer Cone Material

Woofer Surround Material





Port Information


Recommended Box Sealed

Recommended Box Ported

Top Mount Depth

Bottom Mount (Depth)

Mounting Hole (Dia.)

Questions and answers of the customers

There are no questions yet, be the first to ask something for this product.