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Audio professionals in need of a subwoofer that's designed to complement the SRX900 Series full-range sound reinforcement systems will be impressed with the JBL SRX928S, a dual 18" powered subwoofer well suited for rental companies, touring artists, DJs, and installations. The integrated DSP and amplification offer a true plug-and-play experience while providing consistency and optimum performance anywhere in the world.

The two 18" Differential Drive woofers are powered by the built-in Class-D amplifier and provide a frequency response of 31 to 100 Hz at 140 peak SPL. The SRX928S incorporates a large central low-frequency port design that improves airflow and reduces audible turbulence, even at high output levels. A full-featured software package provides users control of the system on various platforms including Windows, Mac, and iOS for iPad.

Highlights

• High-performance, high-density system solution in a truck-pack friendly format
• High-power-handling transducers deliver low distortion, high fidelity, and class-leading output
• Built-in, passively cooled Class D amplification with a universal power supply
• Dual ethernet ports with Neutrik etherCON connectors
• Supports HARMAN HControl Ethernet
• User-controllable DSP
• LevelMax limiting uses sophisticated excursion-control algorithms to protect transducers
• Rear-panel LCD provides complete access to control features
• Reinforced 0.7" plywood enclosure

Performance
The 2279-1 18-inch woofers deliver transparent, linear bass response down to 31 Hz. This driver uses dual 3" voice coils and leverages JBL's patented Differential Drive technology to deliver maximum sensitivity and power handling in a light, compact design.

Compatibility
SRX900 Series subwoofers are acoustically compatible with all SRX900 full-range speakers and support 60 Hz and 80 Hz operating modes. SRX900 line arrays can be ground stacked with SRX900 subwoofers using the optional base plate accessories.

Controlled Coverage
SRX900 subwoofers can be used in omnidirectional or cardioid configurations simply by selecting the appropriate speaker preset and cabinet orientation. The preset can be accessed directly from the rear panel LCD or via software.

Powered Solution
The fully integrated built-in amplifier and DSP are based on proven JBL technologies and explicitly packaged to fit the needs of the SRX900 Series. The DSP includes everything needed to optimize a system, including 24 user-adjustable filters, 2000ms of delay, and advanced features like array size compensation and FIR-based throw distance correction filters.

Versatile and Scalable
The SRX900 Series offers a complete system solution, including speakers, subwoofers, accessories, and software that support a variety of configurations and simplify storage, transport, and rigging. Because systems are scalable, it's easy to start with a small system and add components over time. All SRX900 products have been designed to work seamlessly together with other JBL tour sound products, with common voicing targets and phase characteristics that ensure systems combine coherently.

Specifications

Configuration Active Dual Subwoofer Enclosure Type Bass-Reflex Line Array Subwoofer Total Power Capacity 1100 W RMS
2500 W Peak Amplifier Class Class-D Drivers HF Driver None MF Driver None LF Driver 2 x 18" / 457.2 mm Woofer LF Voice Coil Dual 3" / 76.2 mm Magnet Ferrite Performance Frequency Range 31 Hz to 100 Hz -10 dB Frequency Response 39 Hz to 80 kHz -3 dB Maximum SPL 140 dB (Peak) Input Sensitivity +6 dBu Max Input Level 21 dB I/O Impedance XLR Line Input:
100 Kilohms Connectivity Audio I/O 2 x XLR 3-Pin Balanced Line Input/Output Network I/O 2 x etherCON (Control/Network/Proprietary) In/Out USB None Wireless Connectivity None Signal Processing EQ Yes Parametric EQ Yes Semi-Parametric EQ None Alignment Delay Yes Phase Adjustment Yes Digital Signal Processing Delay, FIR Filter (Adjustable via Optional Software) Maximum Sampling Rate 48 kHz / 24-Bit Power AC Input Power 100 to 240 VAC, 50 / 60 Hz  AC Power Connector 1 x PowerCON TRUE1 Input
1 x PowerCON TRUE1 Output Current Consumption 120 VAC:
4.8 to 18.2 A
240 VAC:
2.1 to 7.3 A Physical Mounting Integrated Rigging Handles 2 x Each Side Cooling Convection, Fan (Variable Speed), Heat Sink IP Rating IP54 Construction Material Aluminum, Perforated Metal Grille, Plywood Dimensions 47.4 x 26.8 x 22.2" / 1204 x 680.7 x 563.9 mm Weight 155 lb / 70.3 kg