JBL Stage122 12" Subwoofer Single 4 Ohm
Key features
- Subwoofer size: 12.0 inches
- RMS power per subwoofer: 250 W
- Voice-coil options: S4
- Frequency response: 34 Hz–200 Hz
- Sensitivity (2.83 V): 91 dB
- Cone and surround: Polypropylene with rubber surround
JBL Stage122 12" Subwoofer Single 4 Ohm - Single 4 Ohm is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
Add JBL bass to your car audio system with the JBL Stage 122 12-inch car subwoofer. Its 250W RMS power handling, 4-ohm single voice coil, and 34Hz–200Hz frequency response make it a straightforward choice for a first subwoofer upgrade.
The polypropylene cone and Hi-Roll rubber surround are designed for accurate, deep bass. JBL transducer engineers individually voice each Stage 122 for consistent JBL bass character.
Key Features & Benefits
- 250W RMS power handling: Match it with an amplifier rated for 150–250W RMS at 4 ohms.
- Single 4-ohm voice coil: Keep system wiring simple without managing dual voice coil configurations.
- Polypropylene cone: Its lightweight, rigid construction supports accurate, low-distortion bass reproduction.
- Hi-Roll rubber surround: Supports cone excursion for deep, punchy bass.
- 91dB sensitivity: The stated sensitivity is 91dB at 2.83V/1m.
- 34Hz–200Hz frequency response: Covers deep sub-bass through upper bass.
Technical Specifications
| Specification | Value |
|---|---|
| Brand | JBL |
| Model | Stage 122 |
| Size | 12" |
| Power Handling (RMS) | 250W |
| Power Handling (Peak) | 1,000W |
| Sensitivity (@ 2.83V/1m) | 91dB |
| Frequency Response | 34Hz – 200Hz |
| Impedance | 4 ohms (Single Voice Coil) |
| Voice Coil Diameter | 2" (50.8mm) |
| Cone Material | Polypropylene |
| Surround Material | Hi-Roll Rubber |
| Weight | 4.5 kg |
Why Choose This Product?
The Stage 122 combines a familiar 12-inch format with a single 4-ohm voice coil, making amplifier matching and wiring more direct. Its 250W RMS rating gives you a clear target when choosing a mono amplifier, while the JBL-voiced sound and stated frequency range help shape the system’s bass character.
Choose a ported enclosure tuned to 35–40Hz for greater output with bass-heavy music. A sealed enclosure is the suggested option for tighter, more accurate bass with rock, jazz, or everyday listening.
Installation & Compatibility Notes
Pair the subwoofer with a mono amplifier rated at 150–250W RMS at 4 ohms. The JBL Stage GT 50011 is rated at 300W RMS at 4 ohms; if using it, keep the gain conservative to stay within the subwoofer’s 250W RMS rating.
For a ported enclosure, the source recommends an 80Hz low-pass crossover and a 30Hz subsonic filter. It also recommends 8 AWG or heavier speaker wire from the amplifier to the subwoofer, plus 4-gauge power and ground wire to the amplifier.
Frequently Asked Questions
Is the JBL Stage 122 single or dual voice coil?
It has a single 4-ohm voice coil, so there is no dual voice coil wiring configuration to manage.
What amplifier rating should I use?
Choose a mono amplifier rated for 150–250W RMS at 4 ohms. If using the 300W RMS JBL Stage GT 50011, keep its gain conservative.
Which enclosure should I choose?
A ported enclosure tuned to 35–40Hz is recommended for maximum output. A sealed enclosure is suggested for tighter, more accurate bass.
What crossover and subsonic filter settings are recommended?
For a ported enclosure, the source recommends an 80Hz low-pass crossover and a 30Hz subsonic filter.
What are the subwoofer’s power ratings?
It is rated for 250W RMS and 1,000W peak power handling. Use the RMS rating when matching amplifier power.
Explore More
Explore the JBL brand profile to learn more about JBL products. Shop 12 Volt Outlet for car audio equipment to build your system.



