JBL SRX738F Subwoofer 18IN 3-WAY

JBL SRX738 Details ^top

For over a decade, JBL SR and SRX series speakers have represented the best performance, highest quality and most advanced driver technology available to portable PA users. The SRX700 series continues that tradition and moves the bar even higher.

The advanced technology of SRX700 series speakers delivers the power and performance that you would expect from the highest quality, professional rig. At the same time, JBL innovation and design have reduced system weight so load in and out are a breeze. All this performance is housed in rugged birch enclosures for years of superb performance.

All SRX700 2 and 3-way models may be operated full-range or bi-amplified. The selection is made by means of a high-current, recessed switch mounted on the input plate. The switch is accessible while also being protected from accidental mis-setting.

The same switch arrangement is used on the subwoofer to select +/-1 or +/-2 operation.

SRX700 is constructed of top quality birch plywood and coated in JBL's rugged DuraFlex™ finish. Extensive use of internal braces and bulkheads makes the enclosures extremely rigid. This reduces acoustic losses caused by panel resonance. The attractive CNC-machined, 16-gauge steel grille wraps around the sides of the enclosure so there are no protruding lips on the front of the system to create acoustical interference. The grilles are internally lined with acoustically transparent foam to provide additional driver protection and give a totally professional appearance.

High Power
Amplifier manufacturers are building amps that can produce more power at less cost than ever before. The SRX700 series lets you unleash that power with a new generation of very high power low-frequency drivers. That would be enough for most manufacturers, but JBL accomplished this while also greatly reducing the weight of the drivers.

Incredibly Lightweight
SRX700 uses JBL's parented Differential Drive® woofers with neodymium magnets. Neodymium's magnetic properties allow a few ounces to replace pounds of conventional magnet.

SRX738 - 18" three-way

Combining the performance of a subwoofer/satellite system with a single-enclosure ease-of-use, the SRX738 uses a 2268 18" Differential Drive® woofer for world-class low-end performance, even without a sub. Mids are handled by a 2169 8" driver using JBL's CMCD™ Cone Mid-range Compression Driver™ technology that provides very low midrange distortion, increased sensitivity, extended bandwidth and improved phase coherency. The mid-range driver is mounted to a 60° x 40° waveguide hosting a 3" (voice coil) 2431 high-frequency driver.

Ideally suited to sound reinforcement and music playback use where low-frequency extension, mid-range clarity and projection are critical, mobile DJs and musicians will appreciate the simplicity and performance of the SRX738. Sound companies will also find the SRX738 to be a flexible addition to their arsenals.

The SRX738 may be used in full-range or bi-amplified modes with a passive cross-over handling the transition from the mid-range to the high-frequency driver.

Key Features:
•457 mm (18 in) Differential Drive® low-frequency driver for extended low-frequency output
•CMCD™ Cone Midrange Compression Driver™ provides low midrange distortion, increased sensitivity, extended bandwidth and improved phase coherence.
•60° x 40° coverage.
•Bi-amplified or full-range passive operation.
•Five suspension points may be used with optional M10 eyebolts or detachable track fittings.

Applications
•Reinforcement of vocal and instrumental music requiring low frequency extension
•Dance music playback

The SRX738 combines the performance of a subwoofer-equipped system with single-enclosure ease of use. The 2268H 457 mm (18 in) patented* Differential Drive® woofer delivers impressive low-frequency extension without a sub. The midrange is covered by JBL's CMCD™ Cone Midrange Compression Driver™
technology using a 2169H 203 mm (8 in) driver. The CMCD design provides very low midrange distortion, increased sensitivity, extended bandwidth and improved phase coherence. The multi-band, Progressive Transition waveguide assembly also hosts a 75 mm (3 in) voice coil 2431H compression driver. Bi-amp or full-range passive operation may be selected by means of an internal network mode selector. For applications requiring suspension, a flying version, the SRX738F is available. The F version offers the option of selecting economical, forged eyebolts (not included) for fixed installation or the convenience of detachable track fittings (not included) for portable applications.

The enclosure is constructed of top quality birch plywood and coated in JBL's rugged DuraFlex™ finish. The attractive CNC-machined, 16-gauge steel grille wraps around the sides of the enclosure so there are no protruding lips on the front of the box to create acoustical interference. The grilles are internally lined with
acoustically transparent foam to provide additional driver protection and give a very professional appearance.

*U.S. Patent 5,748,760; other U.S. and foreign patents pending.

JBL SRX738 Specs ^top

Specifications:
System Type: 18", three-way, bass-reflex,
Frequency Range (-10 dB): 35 Hz - 20 kHz
Frequency Response (±3 dB): 44 Hz - 20 kHz
Coverage Pattern: 60° x 40° nominal
Crossover Modes: Bi-amp / passive, externally switchable
Crossover Frequencies: 2 kHz / 350 Hz
Power Rating Passive: 800 W / 1600W / 3200 W
(Continuous1/ Program/Peak): Bi-amp LF: 800 W / 1600W / 3200 W
Bi-amp MF/HF: 350W / 700W / 1400W
Maximum SPL: 130 dB SPL peak
System Sensitivity (1w @ 1m): 95 dB SPL (passive mode)
Mid / High Sensitivity (1w @ 1m): 108 dB SPL (bi-amp mode)
LF Driver: 1 x JBL 2268H 457 mm (18 in) Differential Drive®
woofer
MF Driver: 1 x JBL CMCD-81H Cone Midrange Compression
Driver with integral 2169H 200 mm (8 in) Differential
Drive® driver
HF Driver: 1 x JBL 2431H 75 mm (3 in) voice coil, neodymium
compression driver
Nominal Impedance: Passive: 8 ohms
Bi-amp LF: 8 ohms
Bi-amp HF: 8 ohms
Active Tunings: dbx DriveRack, all models.
Enclosure: Trapezoidal, 15mm, 11-ply birch plywood
Suspension / Mounting: 5 x suspension points, M10 or optional track kit
Transport: 2 x steel handles
Finish: Black DuraFlex™ finish
Grille: Powder coated, black, 16 gauge perforated steel with
transparent charcoal foam backing. Removable JBL
badge and punched JBL logo.
Input Connectors: Neutrik® Speakon® NL-4 (x2)
Dimensions (H x W x D): 1092 mm x 541 mm x 648 mm
(43 in x 21.3 in x 25.5 in)
Net Weight: 43 kg (95 lbs.)
Optional Accessories: SRX738-CVR: Pull-over padded cover
SRX-FF3: Flying hardware kit
229-00009-01: 10 mm forged eyebolts and washers