The SRX900 Series embodies the advanced performance principles that drive JBL’s development of audio products that make a real difference in the world of professional audio. This next-generation family of powered line arrays and subwoofers addresses the growing need for scalable small and medium-format professional sound-reinforcement solutions for rental companies, fixed installations and musicians seeking the ultimate combination of performance and portability.
The SRX928S is a dual 18-inch active subwoofer designed to complement SRX900 full-range sound reinforcement systems. The sub¬woofer houses two JBL 2279-1 18-inch woofers, featuring Differential Drive® – JBL’s dual voice coil, dual gap technology – to deliver better heat dissipation, lower power compression, and wider dynamic range than conventional single-coil designs.
Features
- 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 18mm plywood enclosures
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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