JBL SRX812 12" Two-Way Bass Reflex Passive System
Description
JBL SRX812 12" Two-Way Bass Reflex Passive System
The JBL SRX812 anchors your live rig with the kind of transparent, articulate bass response that lets your tone cut through without coloration. Its 12-inch woofer delivers gut-punching low-end authority paired with crystalline midrange clarity from the two-way design—the combination means every note you play reaches the crowd with uncompromised definition and presence. On stage, you'll feel the direct translation between what you're playing and what the audience hears. This passive system excels whether you're anchoring hip-hop beats, grooving through funk, or pushing hard rock rhythms, rewarding you with immediate, engaging feedback and the reliability touring musicians demand.
Audio Performance & Coverage
The SRX812 generates a maximum SPL output of 135dB with sensitivity of 95dB at 1W/1m, ensuring your mix projects clearly across medium to large venues without strain. Its 41Hz–20kHz frequency range at –10dB (with –3dB response from 57Hz–20kHz) and 90 x 50 degree coverage pattern provide seamless integration into distributed systems while maintaining the tight, controlled directivity that keeps your sound focused and defined.
Design & Build Quality
Built from 18mm plywood with a rugged 14-gauge steel grille finished in durable Duraflex coating, the SRX812 stands up to the rigors of touring and nightly transport without compromise. The dual 36mm pole sockets and 12 M10 suspension points offer flexible rigging options for any stage setup, while the 50-degree monitor angle allows tilted deployment to optimize coverage and sight lines in any venue configuration.
Key Features
- Passive 12" two-way bass-reflex system with 2272H woofer and 2432H tweeter
- Maximum SPL output: 135dB
- Power rating: 3200W Peak, 1600W Program, 800W Continuous
- Frequency range (-10dB): 41Hz – 20kHz
- Frequency response (-3dB): 57Hz – 20kHz
- Sensitivity: 95dB at 1W/1m
- Nominal impedance: 8 Ohm
- 1.9kHz crossover frequency for seamless driver integration
- NL4 input connector with NL4 loop-thru (+/-1 or +/-2 selectable)
- 90 x 50 degree coverage pattern
- Dual 36mm pole sockets with 12 M10 suspension points for versatile rigging
- 18mm plywood enclosure with 14-gauge steel grille and Duraflex finish
The SRX812 combines professional-grade passive architecture with road-ready durability, making it the dependable foundation for touring musicians, live sound professionals, and any rig demanding transparent midrange with authoritative low-end extension night after night.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | Mexico |
Reviews
At a Glance
The JBL SRX812 is a 12-inch two-way passive speaker built for live sound reinforcement in medium to large venues, delivering 135dB maximum SPL with gut-punching low-end authority and crystalline midrange clarity. Road-tested construction—18mm plywood with steel grille and Duraflex finish—handles touring schedules and frequent transport without compromise. Choose it when you need honest, uncolored tone that translates every nuance to your audience, whether anchoring hip-hop beats, grooving through funk, or pushing hard rock rhythms with precision.
Who This Is For
Great for
- ✓ Live Sound Reinforcement
- ✓ Touring
- ✓ Medium to Large Venues
Not the best pick for
- – Home Studio Monitoring
- – Bedroom Practice
Frequently Asked Questions
Is the SRX812 passive or powered—what amplifier do I need?
The SRX812 is a passive system rated for 3200W peak, 1600W program, and 800W continuous power handling. You'll need to pair it with an external amplifier or powered mixer capable of delivering adequate headroom for your venue size and coverage needs.
What's the frequency response and coverage pattern?
The SRX812 covers 41Hz–20kHz at –10dB (57Hz–20kHz at –3dB) with a 90 x 50 degree coverage pattern, providing tight, controlled directivity suitable for distributed live-sound systems. Sensitivity is 95dB at 1W/1m, delivering articulate projection across medium to large venues.
How is the SRX812 built for touring and transport?
The enclosure is constructed from 18mm plywood with a 14-gauge steel grille finished in durable Duraflex coating. Dual 36mm pole sockets and 12 M10 suspension points offer flexible rigging and stacking, while a 50-degree monitor angle allows tilted deployment for optimal coverage.
What input connections and impedance does it have?
The SRX812 features NL4 connectors with NL4 loop-thru capability (selectable +/-1 or +/-2) and an 8-ohm nominal impedance. The 1.9kHz crossover frequency ensures seamless integration between the 12-inch woofer and tweeter.
How does the SRX812 compare to the Electro-Voice ETX-12P or Yamaha DXR12?
The SRX812 is a passive system, whereas the ETX-12P and DXR12 are powered speakers with built-in amplification. Choose the SRX812 if you already have amplification and want flexible rigging options; choose powered alternatives if you need integrated amp-and-speaker simplicity for smaller setups.