JBL SRX828S 18" Dual Passive Subwoofer System
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The SRX828S delivers earth-shaking low-end authority with surgical precision, commanding any stage or venue with a foundation built for massive sonic landscapes. Dual 18-inch woofers respond with remarkable tightness and definition, allowing you to feel every kick drum and bass note with crystal clarity rather than muddy rumble. This system integrates seamlessly into existing PA setups, offering controlled bottom end that grounds your entire mix without overwhelming midrange or highs.
Audio PerformanceMaximum SPL reaches 141 dB, with frequency response extending from 47Hz to 120Hz (–3 dB) and an 80Hz crossover frequency. The system handles 4800W peak, 2400W program, and 1200W continuous power, delivering the visceral, felt experience that transforms performance from good to unforgettable across hip-hop, electronic, rock, and live sound reinforcement applications.
Build & IntegrationConstructed from 18mm plywood with Obsidian Duraflex™ finish and reinforced by a 14-gauge perforated steel grille, the cabinet weighs 137 lbs and features eight handles for transport and positioning. Indexing feet allow stacking in both standard and cardioid positions, while NL4 connectors with loop-thru capability and an M20 threaded pole cup ensure flexible deployment in any configuration.
Key Features- Passive dual 18" subwoofer system with 2x 2279H LF drivers
- Dual ferrite drivers with 3-inch voice coils
- Maximum SPL: 141 dB
- Frequency Range (–10 dB): 30Hz – 150Hz
- Frequency Response (–3 dB): 47Hz – 120Hz
- 80Hz crossover frequency
- Power Rating: 4800W Peak / 2400W Program / 1200W Continuous
- Nominal Impedance: 4 Ohm
- NL4 Input with NL4 Loop-thru (+/–1 or +/–2 Selectable)
- 18mm plywood enclosure with Obsidian Duraflex™ finish
- Indexing feet for stacking in standard and cardioid positions
- M20 threaded pole cup for mounting; eight handles; dimensions 26.79" × 47.42" × 22.57"; weight 137.0 lbs
The SRX828S delivers the controlled, articulate bass foundation that makes your entire mix feel professional and grounded, whether punching subs for a festival or reinforcing a live band in a packed room.
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