collapse expand iconDescription

The JBL SRX828S Dual 18" Passive Subwoofer is a force of nature perfect for musicians, DJs and venues that demand chest-thumping low end. Featuring premium JBL transducers, robust plywood enclosures and versatile configuration options, the SRX828S unleashes up to 141 dB of powerful, accurate bass for any event or installation. The SRX828S pairs perfectly with JBL's SRX800 full-range loudspeakers to form a formidable yet flexible PA system ready to shake the house.

Dual 18" Woofers Deliver Monstrous Bass

The SRX828S is equipped with dual 2279H 18" woofers featuring stiff, lightweight cones and ferrite magnets capable of moving lots of air. With a frequency response down to 30 Hz, these JBL-designed and built transducers dig deep to reproduce sub-bass frequencies with authority and clarity. The dual-woofer design also provides extra power handling and output, allowing the SRX828S to reach peak SPLs of 141 dB for a chest-thumping low end.

Rugged Plywood Enclosures Built for the Road

JBL constructs the SRX828S cabinets from durable, 18-mm plywood with powder coated, Onsidian, 14-gauge perforated steel and 8 recessed handles. The wide-raked stance provides stability on uneven surfaces and allows for splaying top enclosures at different angles. Indexed feet enable the SRX828S to stack securely with JBL's SRX800 loudspeakers in standard arrangements. With a total of four M10 suspension point the SRX828S supports installation in permanent venues or temporary setups for maximum versatility.

Tunings and Presets for Crown and dbx Gear

For simple setup and optimization, JBL provides tunings and presets for the SRX828S that are compatible with Crown I-Tech HD and XTI Series 2 amplifiers as well as dbx signal processors. Using JBL's HiQnet Performance Manager software, you can load the tunings directly into the amps and processors, allowing for precise control, monitoring and networking of your entire JBL loudspeaker system from a single interface.

The Complete Portable PA Solution

When paired with JBL's SRX800 loudspeakers, the SRX828S forms a powerful yet streamlined portable PA system for musicians, DJs and live sound professionals. JBL is the leader in loudspeaker design and has produced quality, reliable sound reinforcement gear for over 70 years. The SRX800 Series upholds this legacy, delivering premium components, rugged build quality and pristine, full-range sound in a versatile package ideal for any application that calls for a self-contained, professional PA system.

JBL SRX828S Dual 18" Passive Subwoofer

collapse expand iconFeatures

Speaker configuration
  • Active/passive: Passive
  • Type: Subwoofer
  • LF driver: 2 x 18"
  • MF driver: Not applicable
  • HF driver: Not applicable
Power capacity
  • 8 Ohms program/peak:
  • 4 Ohms program/peak: 1200W/4800W
  • Frequency response: 47hZ - 150hZ
  • Coverage pattern: Not applicable
  • Max SPL: 141 dB
  • XLR: Not applicable
  • TRS: Not applicable
  • TS: Not applicable
  • RCA: Not applicable
  • SPEAKON: 1
  • XLR: Not applicable
  • TRS: Not applicable
  • TS: Not applicable
  • RCA: Not applicable
  • SPEAKON: 1
  • Cabinet material: 18mm ply
  • Width: 47.4"
  • Height: 22.6"
  • Depth: 26.8"
  • Weight: 137 lb.