






JBL BassPro SL2 8" Active Underseat Subwoofer 125w RMS
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JBL BassPro SL2
8" (200mm) Compact Powered Underseat Active Subwoofer | 250W
Upgrade your car audio system with the JBL BassPro SL, a compact and powerful 8-inch (200mm) underseat active subwoofer designed to deliver deep bass without taking up valuable space.
Engineered for discreet installation, the BassPro SL fits under most vehicle seats thanks to its ultra-slim profile, making it ideal for modern vehicles with limited space. Despite its compact size, it delivers strong low-frequency performance, enhancing your music with depth and clarity.
The built-in Class D amplifier (125W RMS / 250W peak) is highly efficient, generating minimal heat while delivering consistent, distortion-free output. The proprietary 8-inch woofer is designed for low distortion and excellent bass performance within a compact ABS enclosure.
Advanced tuning controls include a variable low-pass crossover (50Hz–120Hz), bass boost, and phase switch, allowing you to fine-tune the bass response to match your system.
With both high-level (speaker) and RCA inputs, the BassPro SL integrates seamlessly with factory or aftermarket head units, making it a perfect upgrade for any car audio system.
Explore the full range in JBL.
Specification
| Woofer | 8" (200mm) |
|---|---|
| Amplifier Power | 125W RMS |
| Frequency Response | 35Hz – 120Hz |
| Fuse | 15A |
| Maximum Current Draw | 12A |
| Quiescent Current Draw | <800mA |
| Input Sensitivity | 0.05V – 2V Line-Level Input; 0.5V – 20V High-Level Input |
| Crossover Frequency | 50Hz – 120Hz |
| Crossover Slope | 12dB/octave |
| Bass Boost | 0dB to +9dB @ 70Hz |
| Dimensions | (L x W x H) 13-9/16" x 9-7/8" x 2-13/16" (344mm x 250mm x 71mm) |
What's Included
- 1 x Powered woofer enclosure
- 4 x Mounting screws
- 1 x Remote bass level control
- 1 x Owner’s manual
About the brand
JBL
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Frequently Asked Questions
Q: Will these speakers fit my car?
A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.
Q: Do I need an amplifier to run these speakers?
A: Not always. Most speakers will run from a standard head unit, but a dedicated amplifier lets them perform at their best, particularly for component sets and higher power handling models. The RMS figure in the Specification tab is the guide to how much clean power they can use.
Q: What is the difference between coaxial and component speakers?
A: Coaxial speakers combine the tweeter and woofer in one unit for a simple like-for-like upgrade. Component sets separate the tweeter and woofer with a crossover for better imaging and detail, and suit installs where sound quality is the priority.
Q: Do these come as a pair?
A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.








































