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The JBL Stage 122 is a straightforward 12-inch subwoofer built to deliver powerful, clean bass without breaking the bank.
JBL STAGE 122
12" (300mm) Sub
Engineered for high output and low distortion, the Stage 122 handles up to 1000 watts peak power and 250 watts RMS. It works with a wide range of amplifiers and fits most vehicle installs.
The polypropylene cone is lightweight but stiff, keeping bass tight and responsive. The hi-roll rubber surround adds durability and helps the driver move efficiently at higher volumes.
Each subwoofer is individually voiced by JBL's transducer engineers to deliver the bass character the brand is known for.
Key Specs
- Size: 12 inch (300mm)
- Impedance: 4 ohms
- RMS power handling: 250 watts
- Peak power handling: 1000 watts
- Cone material: Polypropylene
- Surround: Hi-roll rubber
- Also available in 8 inch (200mm) and 10 inch (250mm)
Explore the full range in JBL.
Specification
| Power Handling | 250Wrms, 1000W peak |
|---|---|
| Sensitivity | (@2.83V) 91dB |
| Frequency Response | 34Hz - 200Hz |
| Voice Coil | Diameter 2 in. (50.8mm) |
| Impedance | 4 ohms |
What's Included
- JBL Stage 122
JBL
About the JBL STAGE 122
From our tech experts at CEN
A subwoofer, 12 inch, 250w RMS.
Who it suits
Drivers who want more low end without building a system around it — one unit, one power feed, no separate amplifier to hide.
Our tech experts advise
It still needs a fused feed from the battery and a signal source, and the level and crossover want setting against your existing speakers so it fills in underneath rather than announcing itself. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
Explore the full JBL range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all JBL
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Frequently Asked Questions
Q: Do I need an amplifier for this subwoofer?
A: Yes, unless it is an active (powered) subwoofer with a built-in amplifier. Passive subwoofers need an external amplifier matched to the RMS power and impedance shown in the Specification tab.
Q: What size enclosure does this subwoofer need?
A: The recommended enclosure volume is listed in the Specification tab where the manufacturer provides it. As a rule, sealed enclosures give tighter, more accurate bass while ported enclosures deliver more output. Contact CEN if you would like a recommendation for your build.
Q: What does RMS power mean?
A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.
Q: Sealed or ported enclosure - which should I choose?
A: Sealed boxes are compact and produce tight, controlled bass suited to sound quality builds. Ported boxes are larger and produce more output at low frequencies, suited to those who want maximum impact. Either works well when built to the recommended volume.
Q: Can CEN build or supply an enclosure and fit everything?
A: Yes. CEN supplies enclosures and offers professional installation from our Nottingham premises, including amplifier wiring. Contact us to discuss your build.
