.:JBL SRX728

We just added 6 new JBL SRX728 Dual 18 inch subs to our rental inventory.

Key Features:

 Dual 18 inch, 2268H Differential

Drive® woofers for extended lowfrequency output

 Large vent area for reduced distortion


 Live performance venues

 Mobile and fixed DJ systems

 Sound system rental

The SRX728S is a high power subwoofer system containing two 2268H neodymium magnet, patented* Differential Drive®, 18" woofers in a front-loaded, vented enclosure. The enclosure is designed to present a minimum frontal area. The system offers complete input connection flexibility for compatibility with a variety of cabling schemes. A recessed, external switch allows selection of either contacts +1/-1 or +2/-2. By relocating an internal connector, it is also possible to drive each woofer discretely from a separate amplifier channel.

The enclosure is constructed of top quality birch plywood and coated in JBL’s rugged DuraFlex™ finish. Each woofer is housed in an isolated chamber and the enclosure is heavily braced to maximize low-frequency performance. The attractive CNCmachined, 16-gauge steel grille is internally lined with acoustically transparent foam to provide additional driver protection and give a very professional appearance.


Frequency Range (-10 dB): 27 Hz – 220 Hz

Frequency Response (±3 dB): 33 Hz – 220 Hz

Input Connection Modes: Switchable, +1/-1 or +2/-2

Internally selectable, Parallel or Discrete

Recommended Crossover Frequencies: 80 Hz, 24 dB / octave HPF

80 Hz, 24 dB / octave LPF

Power Rating

(Continuous1 / Program / Peak): Parallel: 1600 W / 3200 W / 6400 W

Maximum SPL2: 136 dB SPL peak

Sensitivity (1w @ 1m): 98 dB SPL

LF Driver: 2 x JBL 2268H 457 mm (18 in) Differential Drive

woofer with neodymium-magnet and dual voice-coils

Nominal Impedance: Parallel: 4 ohms

Discrete: 8 ohms x 2

Enclosure: Rectangular, 18 mm, 13-ply birch plywood

Finish: Black DuraFlex finish

Grille: Powder coated, black, 16-gauge perforated steel with acoustical transparent charcoal foam backing.

Input Connectors: Neutrik® Speakon® NL-4 (x2)

Dimensions (H x W x D): 602 mm x 1067 mm x 838 mm (23.7 in x 42 in x 33 in)

Net Weight: 76 kg (166.5 lb)