JBL 3730 Specifications

3730

Professional Series

Application:

Cost eective cinema sound reproduction in small to medium cinemas

Key Features:

ree-Way ScreenArray maximum output, optimal coverage, and minimum distortion.

Bi-amplied or fully passive switchable operation

SSC

Screen Spreading Compensation

New molded Optimized Aperture Waveguide technology for ultra low distortion and extremely uniform frequency response

Low Frequency section features dual 15" transducers with ribbon wire voice coils for low distortion and high eciency.

Flat Front Wave Guide design for easy bae wall installation

Shallow prole for minimum behind screen depth requirements.

Today’s cinemas require perfect coverage in every seat of the auditorium, wide dynamic range and extended bandwidth, as well as inaudible levels of distortion. Digital soundtracks require sound systems for premier auditoriums that can accurately reproduce the sound exactly as recorded.

e 3730 ScreenArray provides smooth and accurate reproduction of cinema soundtracks in a compact and very cost eective system. e ScreenArray horn features a patented design that compensates for high frequency spreading caused by perforated screens for greatly improved audience coverage.

e 3730 ScreenArray is enhanced by advanced engineering. JBL’s latest technical innovations are integrated into a system design that provides superior coverage, maximum power handling, and uniform acoustic power output, along with extremely low distortion. e ScreenArray design provides ideal power response and directivity control with seamless transitions between acoustic sections.

design for

ree-Way Bi-Amplied/Passive ScreenArray

System Speciﬁcations:

Frequency Range: 30 Hz - 18 kHz

System Sensitivity: 105 dB, 2.83V @ 1 m (3.3 )

Nominal Impedance: 4 ohms

Passive System

Input Power Rating: 600 W

Bi-Amp System

Input Power Rating:

Nominal Coverage: 90

Crossover Frequency: 450 Hz , 2 kHz

Dimensions (HxWxD): 173.4 mm x 762 mm x 450 mm (68.25 in x 30 in x 17.75 in)

Net Weight: 67.1 kg (147 lbs.)

Shipping Weight: 78.1 kg (172 lbs.)

Component Elements

3739 Low Frequency: Two M115-8A 380 mm (15 in) dia., 61 mm (2.5 in) edgewound ribbon

Dimension (HxWxD): 883 mm x 762 mm x 450 mm (34.75 in x 30 in x 17.75 in)

Net Weight: 56 kg (123 lbs.)

Shipping Weight: 64.5 kg (142 lbs.)

Model 3730-M/HF

Nominal Impedance: 4 ohms [MF: 8 ohms, HF: 8 ohms]

Input Power Rating: 125 watts AES; 300 watts recommended amplier

Sensitivity: 105 dB SPL, 2.83V @ 1 m (3.3 )

Input Connectors: Screw terminal barrier strip

Mid Frequency: 1 x 195H; 165.1 mm (6.5 in) dia., 38 mm (1.5 in) voice coil

High Frequency: 2414H, 25 mm (1 in) polymer diaphragm, neodymium

Dimensions (HxWxD): 852 mm x 762 mm x 360 mm (33.5 in x 30 in x 14.1 in)

Net Weight: 11.1 kg (24 lbs.)

Shipping Weight: 13.6 kg (30 lbs.)

JBL continually engages in research related to product improvement. Some materials, production methods and design renements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current JBL product may dier in some respect from its published description, but will always equal or exceed the original design specications unless otherwise stated.

LF: 500 W M/HF: 125 W

º horizontal,

voice coil transducers mounted in a 4509 LF enclosure

[MF: 110 dB SPL, 2.83V @ 1 m (3.3 )] [HF: 112 dB SPL, 2.83V @ 1 m (3.3 )]

compression driver

Cinema Loudspeaker System

-30º/+20º vertical

20 100 1000 10000 20000

Frequency (Hz)

100

Directivity Index (DI), dB

Directivity Factor (Q)

3730 ree-Way Bi-Amplied/Passive ScreenArray® Cinema Loudspeaker System

451 [17.8]

762 [30.0]

883 [34.8]

852 [33.54]

Frequency Response in half-space (2π)

115

105

SPL (dB)

20 100 1000 10000 20000

Frequency (Hz)

Directivity Index and Directivity Factor

Dimensions

Dimensions in mm (in)

Bandwidth vs. Frequency

360

100

Horizontal

-6 dB Beamwidth (degrees)

Vertical

20 100 1000 10000 20000

Frequency (Hz)

SS3730 CRP 5M 09/12

JBL Professional

8500 Balboa Boulevard, P.O. Box 2200

Northridge, California 91329 U.S.A.

www.jblpro.com