For the ultimate in performance and simplicity, a pair of SRX725 speakers, and a single, high-power amplifier delivers superb high-level music and powerful bass. Or add SRX728S dual 18-inch subwoofers for truly impressive low-end. A pair of JBL 2265H Differential Drive drivers handles an amazing 1200 watts of continuous power. The 2451 4-inch compression driver, respected worldwide as one of the finest high powered drivers made, provides smooth, clear mids and highs. Despite this performance, the SRX725 weighs only 100 lbs (45 kg).
Technical Info
Frequency Range (-10 dB): 37 Hz – 20 kHz
Frequency Response (±3 dB): 53 Hz – 20 kHz
Coverage Pattern: 75° x 50° nominal
Crossover Modes: Bi-amp / passive, externally switchable
Crossover Frequency: 1.2 kHz
Power Rating (Continuous1; Program; Peak):
- Passive: 1200 Watts; 2400 Watts; 4800 Watts
- Bi-amp LF: 1200 Watts; 2400 Watts; 4800 Watts
- Bi-amp HF: 75 Watts; 150 Watts; 300 Watts
Maximum SPL2: 136 dB SPL peak
System Sensitivity (1w @ 1m): 99 dB SPL (passive mode)
LF Driver: 2 x JBL 2265H 380 mm (15 in) Differential Drive woofer with neodymium magnet and dual voice-coils
HF Driver: 1 x JBL 2452H 102 mm (4 in) voice-coil, neodymium-magnet compression driver
Nominal Impedance:
- Passive: 4 ohms
- Bi-amp LF: 4 ohms
- Bi-amp HF: 8 ohms
Active Tunings: dbx DriveRack, all models. Settings available at www.jblpro.com
Enclosure: Trapezoidal, 15 mm, 11-ply birch plywood
Suspension / Mounting: 5 x suspension points, M10
Transport: 2 x steel handles
Finish: Black DuraFlex finish
Grille:
- Powder coated, black, 16-gauge perforated steel with acoustically transparent charcoal foam backing.
- Removable JBL badge and punched JBL logo.
Input Connectors: Neutrik Speakon NL-4 (x2)
Dimensions (H x W x D): 48 in x 21.3 in x 20 in (1219 mm x 541 mm x 508 mm)
Net Weight: 96 lbs. (43 kg) 
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