JBL Stadium 122SSI 12″ SSI Selectable Impedance Subwoofer
500 W RMS twelve-inch sub with 2/4 ohm SSI switch
$199.99$299.95 (-33%)
Overview
Stadium 122SSI is a 12-inch high-performance subwoofer with Selectable Smart Impedance for 2-ohm or 4-ohm loads at the flip of a switch. It handles 500 W RMS / 1500 W peak with 25–175 Hz response, 92 dB sensitivity, a 2-inch aero-cooled voice coil, and 7-inch mounting depth. Choose 2 ohm or 4 ohm with the SSI switch instead of rewiring dual voice coils.
Product details
SSI without dual-coil wiring puzzles
Choose 2 ohm or 4 ohm with the SSI switch instead of rewiring dual voice coils. That keeps amplifier matching flexible as the system grows. Confirm sealed or ported enclosure volume against the published Thiele/Small recommendations before cutting wood. Use oxygen-free speaker wire of adequate gauge for the run length, and double-check SSI or impedance switch position before powering the amp.
Aero-cooled oversized coil
A 2-inch voice coil with aero-cooling improves thermal power handling while staying lighter than oversized four-inch coils. Premium push terminals accept heavy gauge wire. Confirm sealed or ported enclosure volume against the published Thiele/Small recommendations before cutting wood. Use oxygen-free speaker wire of adequate gauge for the run length, and double-check SSI or impedance switch position before powering the amp.
Enclosure and cutout
Cutout about 11-1/5" with 7" mounting depth. Plan a sealed or ported box sized for a 12-inch Stadium woofer and an amp near 500 W RMS. Confirm sealed or ported enclosure volume against the published Thiele/Small recommendations before cutting wood. Use oxygen-free speaker wire of adequate gauge for the run length, and double-check SSI or impedance switch position before powering the amp.
Key features
- 12" (300 mm) high-performance subwoofer
- 500 W RMS / 1500 W peak
- SSI switchable 2 or 4 ohm impedance
- Frequency response 25 Hz – 175 Hz
- Sensitivity 92 dB @ 2.83 V
- 2" (50 mm) aero-cooled voice coil
- Premium integrated push terminals
- Cutout 11-1/5" (285 mm); depth 7" (180 mm)
Specifications
| Weight | 19.89 lbs |
|---|---|
| Dimensions | 14.5 × 14.25 × 9.25 in |
| Size | 12 inch |
| Brand | JBL |
| Model | Stadium 122SSI |
| SKU | STADIUM122SSI |
| UPC | 050036381185 |
| Product type | Car audio subwoofer |
| Power handling | 500 W RMS / 1500 W peak |
| Frequency response | 25 Hz – 175 Hz |
| Sensitivity | 92 dB @ 2.83 V |
| Impedance | 2 or 4 ohms (SSI) |
| Voice coil | 2" (50 mm) aero-cooled |
| Cutout diameter | 11-1/5" (285 mm) |
| Mounting depth | 7" (180 mm) |
| Terminals | Premium push terminals |
Important notes
- Enclosure and amplifier sold separately.
- Match amp power near 500 W RMS continuous.
- Confirm cutout and depth before ordering.
What's in the box
- 1x Subwoofer
- 1x Owner manual
- 1x Screw bag
