JBL E120 Guitar / Midrange Driver
Born in the golden era of stage-ready audio, the JBL E120 is no ordinary 12-inch driver. Engineered for the raw demands of live guitar and instrument amplification, this E Series workhorse delivers punchy, articulate sound with a transient snap that cuts through any mix. Built like a tank and voiced for performance, it’s a favorite among players who demand clarity, volume, and durability from their gear.
Specifications
| Type | 12" (300mm) Musical Instrument Driver |
|---|---|
| Voice Coil Diameter | 3 inches (76mm) |
| Magnet | Ferrite |
| Nominal Impedance | 8 Ω |
| Power Handling | 150W continuous |
| Frequency Response | 45 Hz - 5 kHz |
| Sensitivity | 100 dB/W/m |
| Resonant Frequency (Fs) | ~45 Hz |
Design Features
- Musical Instrument Optimized: Tailored for the dynamic range and attack of electric guitars and keyboards
- High Sensitivity: 100 dB efficiency ensures effortless volume and headroom
- Extended Range: Handles everything from deep chords to crisp midrange leads with authority
- Durable Construction: Reinforced for the bumps, drops, and high SPLs of life on the road
Applications
- Electric guitar speaker cabinets
- Midrange driver in multi-way systems
- Keyboard amplification
- Stage monitoring
Enclosure Design
For optimal performance, JBL’s Professional Enclosure Guide lays out a precise bass-reflex design when using the E120 as a midrange or guitar driver. Tuned to 80 Hz, the recommended enclosure gives tight, responsive low-end while preserving the driver’s natural clarity in the mids.
| Application | Midrange or guitar |
|---|---|
| Chart Reference | #1 |
| Enclosure Volume | 1.5 cubic feet (42.5 liters) |
| Tuned Frequency | 80 Hz |
| Internal Dimensions | 17.4" H x 14.2" W x 12.3" D |
| Vent Area | 13.9 sq in (1x 4" duct) |
| Duct Length | 4.2 inches |
View the complete JBL Professional Enclosure Guide →
E Series Context
The E Series was JBL’s answer to the punishing world of amplified instruments. These weren’t repurposed hi-fi drivers—they were forged for stage duty. With rugged builds and voicing tuned to the harmonic complexity and fast transients of guitars, basses, and keyboards, E Series drivers like the E120 became staples in professional rigs where reliability and sonic presence mattered most.
Related Drivers
- JBL E130 - 15" full-range MI driver
- JBL E140 - 15" low-frequency MI driver
- JBL E110 - 10" midrange driver
- JBL 2202H - Professional mid-bass alternative
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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
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