JBL 2241H 18" Subwoofer
The JBL 2241H is an 18-inch subwoofer built for venues where the low end has to be felt as much as heard - cinemas, concert halls, touring rigs. It delivers deep, controlled output, and it has the rugged reliability JBL's pro drivers are known for.
Specifications
| Type | 18" (460mm) Cone Subwoofer |
|---|---|
| Voice Coil Diameter | 4 inches (100mm) |
| Magnet | Ferrite (SFG - Symmetrical Field Geometry) |
| Nominal Impedance | 8 Ω |
| Power Handling | 400W continuous |
| Frequency Response | 20 Hz - 1.5 kHz |
| Sensitivity | 95 dB/W/m |
| Resonant Frequency (Fs) | ~22 Hz |
Design Features
- 18-inch Diameter: A cavernous cone area moves serious air, ideal for seismic low-frequency reproduction
- SFG Magnetic Circuit: JBL’s Symmetrical Field Geometry minimizes flux modulation, keeping distortion in check even at full throttle
- High Power Handling: Rated for 400W continuous, the 2241H thrives in high-demand environments without breaking a sweat
- Extended Excursion: Engineered for long Xmax, it digs deep into sub-bass territory with precision and control
Applications
- Cinema subwoofer systems
- Large venue sound reinforcement
- Concert touring subwoofers
- High-end home theater
Enclosure Design
JBL's official enclosure guide calls for a tuned bass-reflex design. This is the layout they recommend.
| Application | Subwoofer |
|---|---|
| Chart Reference | #13 |
| Enclosure Volume | 10.0 cubic feet (283 liters) |
| Tuned Frequency | 40 Hz |
| Internal Dimensions | 32.0" H x 26.1" W x 22.6" D |
| Vent Area | 75.4 sq in (6x 4" ducts) |
| Duct Length | 5.5 inches |
View the complete JBL Professional Enclosure Guide →
Related Drivers
- JBL 2242H - Higher power 18" subwoofer variant
- JBL 2245H - Alternative 18" subwoofer design
- JBL 2235H - 15" studio monitor woofer
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Documentation
- Lansing Heritage - Comprehensive JBL specifications, photos, and historical documents
- HiFi Engine - JBL manuals, service documents, and brochures
- Audio Karma JBL Forum - Community discussions and restoration guides