JBL 4739 Specifications

Acoustic                                            - Nominal Impedance: 4 Ohms
                                                             Input Power Rating: 800W AES; 1200W recommended amplifier
                                                             Frequency Response: 40 Hz - 1.2 k (+/-3 dB)
                                                             Frequency Range: 30 Hz - 1.2 k (+/-3 dB)
                                                             Sensitivity: 104 dB SPL, 2.83V @ 1 m (3.3 ft)
                                                             Crossover Frequency: 1.2 kHz

Components                                     - Cabinet: Enclosure (Not For Sale)
                                                             Low Frequency Transducer: 2 x 265H-2, 380 mm (15 in) dia, Differential Drive edgewound rib bon voice coil

                                                             transducers mounted in 4509 LF enclosure
                                                             DC Resistance: 5.25 ohms +/-10%
                                                             Terminal Assy: 396-00013-00

Aural Sweep Test                             - A. System Aural Sweep Test: 7.0V Input, 20 Hz to 2 kHz
                                                             B. L.F. Aural Sweep Test: 15.5V Input, 30 Hz to 2.2 kHz
                                                             1/10 power @ 8 ohms

Dimensions                                       - 883 x 762 x 450 mm (34.75 x 30.0 x 17.75 in)

Weight                                                - 126 lb (7.2 kg)