Product Description

Whether you’re filling an arena or just going for the thumpenist dance floor in town, sometimes you just need a lot of bass. When these occasions arise, look no further than the SRX728S from JBL. Wielding two 18 inch woofers and rated at 3200 watts program, the SRX728S is a low-end machine designed for the sole purpose of generating massive low-end torrents with incredible clarity and precision. Rigorously tested and perfected to meet JBL’s high standards of performance, the SRX728S is dual woofer enclosure with enough power for any job.

Unparalleled Low-end Performance

JBL has long been producing some of the best sub-woofers out there, and with the SRX728S they have again raised the bar. With 3200 watts RMS, 6400 watts peak, and 136 dB peak SPL, the SRX728S generates enough bass power to rock any venue whether permanently installed or as part of a mobile rig. Large open ducts have been added to minimize port turbulence, and the reinforced design of the enclosure ensures tight solid bass reproduction. All these features combine to deliver smooth and accurate low-extension with a frequency range dipping all the way down to 27Hz.

Built to Last

Like the rest of the SRX series, the SRX728s has been designed by JBL to withstand the pressures of modern live sound environments and the abuse of the touring. The rugged birch plywood enclosure is coated with JBL’s Duraflex finish specifically created to protect the cabinet through years of heavy use. All speakers in the SRX series have been subjected to JBL’s 100 hour torture test during which new designs are run at extremely high levels for more abuse than they’re likely to meet in years of regular usage. With JBLs reputation and standards backing the whole series, the SRX728S is a sub you can trust to last a lifetime.

Features:

-Two JBL 2268H 457 mm (18 inch) different drive woofers with neodymium-magnet and dual voice-coils for massive low-end extension.
-Large open ducts for minimal port turbulence.
-Switchable, +1/-1 or +2/-2 input connections for use with array of amps and systems.
-Ability to run woofers as discrete or parallel for additional configuration options.
-1600 w continuous, 3200 w program, and 6400 peak power rating (parallel)
-Rugged 18mm, 13 ply birch wood enclosure with JBL Duraflex finish for a rugged and durable enclosure.
-Overall weight of 166.5 lbs with four steel handles for movement.

With a JBL SRX728S or two in your arsenal, never again will you have worry about a lack of low-end extension in your venue or mobile system. Filled with helpful features to easily integrate into any number of set-ups, the SRX728S is a great solution to any low-end deficiencies you may face. From rock venues, to clubs, to mobile DJs and rental companies, the SRX728S offers all the bass you need for years to come. zZounds is an authorized dealer of JBL products.

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 (Continuous *1 / Program / Peak): Parallel: 1600 Watts; 3200 Watts; 6400 Watts

Maximum SPL *2: 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

Active Tunings: dbx DriveRack, all models.

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.
- Removable JBL badge and punched JBL logo.

Input Connectors: Neutrik Speakon NL-4 (x2)

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

Net Weight: 166.5 lbs. (76 kg)

*1 - 40 Hz to 120 kHz pink noise with 6 dB crest factor.

*2 - Calculated based on power rating and sensitivity.

JBL continually engages in research related to product improvement. Some materials, production methods and design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated.