JBL 3731 Three-Way ScreenArray Cinema Passive Loudspeaker System (Bi-Amp)

JBL 3731 Three-Way ScreenArray Cinema Passive Loudspeaker System (Bi-Amp)

JBL 3731 Three-Way ScreenArray Cinema Passive Loudspeaker System (Bi-Amp)

B&H # JB3731 MFR # 3731
JBL 3731 Three-Way ScreenArray Cinema Passive Loudspeaker System (Bi-Amp)

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Expected availability: 7-10 business days

Product Highlights

  • Professional Film Sound Reproduction
  • Three-Way Bi-Amp Design
  • Shallow Profile Behind-Screen Deployment
  • Maximum Output with Minimum Distortion
  • Single 15" Woofer
  • 2 x 6.5 Mid-Freq Drivers
  • HF Compression Driver + Molded Waveguide
  • Frequency Response: 40 Hz to 19 kHz
  • 131 dB Peak SPL
  • Power Input: 600W LF, 150W M/HF
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This item is noncancelable and nonreturnable.

$2,369.50
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JBL 3731 Overview

  • 1Description

Designed to accurately reproduce digital cinema soundtracks, the bi-amplified JBL Professional 3731 is a passive, 3-way cinema loudspeaker system that provides superior coverage, maximum power handling, and uniform acoustic power output along with low distortion. The system's wide dynamic range and extended bandwidth reproduce sound exactly as it was recorded.

The low-frequency enclosure features a single 15" driver while the dual 6.5" mid-driver and 3" high-frequency compression driver are equipped with a molded waveguides. The compression driver waveguide compensates for high-frequency spreading caused by perforated screens for improved audience coverage. The ScreenArray design provides an ideal power response and directivity control with seamless transitions between acoustic sections. The shallow profile of the JBL 3731 is ideal for minimum behind-screen depth requirements.

  • Passive Three-way ScreenArray design for maximum output, optimal coverage and minimum distortion
  • Large Format 3” neodymium, titanium diaphragm, high-frequency compression driver
  • Low-profile design with single 15” 600 watt LF
  • Ships fully assembled
  • Molded Optimized Aperture Waveguide technology for low distortion and uniform frequency response
  • SSC (Screen Spreading Compensation)
  • Focused coverage technology
  • Flat front waveguide design for easy baffle wall installation
  • Shallow profile for minimum behind-screen depth requirements
In the Box
JBL 3731 Three-Way ScreenArray Cinema Passive Loudspeaker System (Bi-Amp)
  • Limited 5-Year Warranty on Drivers
  • Limited 2-Year Warranty on Enclosure
  • Table of Contents
    • 1Description

    JBL 3731 Specs

    System
    Frequency Range 30 Hz to 20 kHz
    Frequency Response ± 3dB 40 Hz to 19 kHz
    SPL 125 dB at 3.3' / 1 m, 131 dB Peak
    Nominal Coverage Angle H: 90°
    V: -30/+20°
    Crossover 350 Hz
    Bi-Amping Input Power Handling (AES 100-Hour Rating):
    LF: 600 W
    M/HF: 150 W
    Sensitivity HF/LF: 105 dB, 2.83 V at 3.3' / 1 m
    Low Frequency Driver
    Low Frequency Transducer 1 x 2226H 15" / 380 mm, 4" / 100 mm Edgewound Ribbon Voice Coil Transducer Mounted in a 4507A LF Enclosure
    Input Connectors Barrier Strip
    Impedance Nominal Impedance: 8 Ohms
    Minimum Impedance 6 Ohms
    Input Power Input Power Handling (AES 100-Hour Rating): 600 W
    Sensitivity Free-Field Sensitivity: 97 dB SPL, 2.83 V at 3.3' / 1 m
    M/HF Components
    Mid Frequency Driver Mid Frequency Transducer (Ships Fully Assembled): 2 x 165H, 6.5" / 165 mm Diameter, 1.5" / 38 mm Voice Coil
    High Frequency Transducer 1 x 2432H, 3" / 75 mm Titanium Diaphragm and Voice Coil Diameter, 1.5" / 38 mm Exit Diameter
    Input Connectors Screw Terminal Barrier Strip
    Nominal Impedance 8 Ohms
    Sensitivity M/HF Free-Field Sensitivity: 103 dB, 2.83 V at 3.3' / 1 m
    Power Handling M/HF Input Power Handling (AES 100-Hour Rating): 150 W
    Physical
    Dimensions (H x W x D) System: 63 x 30 x 17.8" / 160 x 76.2 x 45 cm
    Low-Frequency Component: 21.5 x 30.0 x 17.6" / 54.6 x 76.2  x 44.7 cm
    M/HF Component: 41.5 x 30 x 17.8" / 105.4 x 76.2 x 45 cm
    Weight System: 114 lb / 51.7 kg
    Low-Frequency Component: 63 lb / 28.6 kg
    M/HF Component: 51 lb / 23.1 kg

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