JBL PRX908 Professional Powered Two-Way 8-Inch PA Loudspeaker Instructions
- June 9, 2024
- JBL
Table of Contents
JBL PRX908 Professional Powered Two-Way 8-Inch PA Loudspeaker
OVERVIEW
The JBL PRX908, part of the PRX900 Series of powered loudspeakers and subwoofers, takes professional portable PA performance to a new level with advanced acoustics, comprehensive DSP, unrivaled power performance and durability, and complete BLE control via the JBL Pro Connect app.
PRODUCT HIGHLIGHTS
- Transducers:
- 908G 8” ferrite magnet woofer
- JBL 2408H-2 1.5” poly-annular diaphragm compression driver
- Updated JBL image control waveguide improves dispersion
- Low-noise, low-distortion gain staging design
- Lightweight, efficient Class D amplification
- Power: 2,000 watts peak/1,000 watts RMS
- Frequency response: 55 Hz–20 kHz @4π (-10 dB); 65 Hz–20 kHz@4π (-3 dB)
- Dispersion: 105° x 60°
- Max SPL: 126 dB
- Crossover frequency: 1,930 Hz
- Onboard color LCD screen provides access to mixing and DSP
- DriveRack Technology includes Automatic Feedback Suppression, system limiter and 180ms of speaker delay in 100-microsecond intervals for time-aligned systems
- Optimized presets for pairing full-range speakers and subwoofers
- JBL Pro Connect app allows full system control of up to 10 speakers and line integration with JBL EON ONE MK2, PRX ONE and EON700 systems
- G-Sensor Automatic Position Detect optimizes tuning b ased on main or monitor orientation
- The polypropylene/talc composite cabinet is optimized for rigidity and durability
- I/Os:
- 2 XLR balanced Combo jacks
- 1 3.5mm aux, 2 XLR-M loop-through
- 1 XLR-M mix out
- Integrated handle (top)
- Suspension/mounting: dual 36mm pole socket, six M10 suspension points
- Ultra-low system latency: <1 ms
- Quiet fanless operation
- Net weight: 13.7 kg (30.2 lbs); Gross weight: 16.5 kg (36.4 lbs)
- Dimensions: 479 x 312 x 285 mm (18.9 x 12.3 x x 11.2 in)
- Backed by industry-leading seven-year warranty
SPECIFICATIONS
- System Type 8-Inch Powered Loudspeaker
- Woofer Model 908G
- Woofer Size 8”
- Woofer Magnet Ferrite
- Woofer Voice Coil 2.4”
- Tweeter Model 2408H-2
- Tweeter Size 1.5”
- Tweeter Magnet Neodymium
- Transducer Rated: Woofer: 4 Ω
- Impedence Tweeter: 8 Ω
- Max SPL 126dB
- Freq Range -10 55 Hz – 20 kHz (4π)
- Freq Range -3 65 Hz – 15 kHz (4π)
- Hor Dispersion 105°
- Vert Dispersion 60°
- Power Rating 2500W pk
- Tweeter Amp 170 Wpk, 22 Wrms, 6 Wrms Continuous
- Woofer Amp 2400 Wpk, 900 Wrms, 170 Wrms Continuous
- AC Power Input 100 – 230 Vrms 50 – 60 Hz
- Cooling Natural Convection No Fan
- LED Indicators x3 SSM Input Levels and Limit
- Input Impedence 100K Ω Balanced
- Input Gain 0 – 36dB gain
- Crossover Freq 1930Hz
- I/O x2 Combo Inputs and x1 3.5 mm Stereo Jack x2 XLR Through Out and x1 Mix Out
- Cabinet PP + 10% Talc
- Grille Powder Coated Steel, T=1.2mm
- Suspension/ Mount 6x M10 Suspension Point and Pole Mount
- Handles Top Handle
- Net Weight 13.7 kg (30.2 lbs)
- Gross Weight 16.5kg (36.4 lbs)
- Product Dims H x W x D 479 x 312 x 285 mm (18.9 x 12.3 x 11.2 in)
- Shipping Dims H x W x D 515 x 424 x 397 mm (20.28 x 16.7 x 15.6 in)
PRODUCT FEATURES
All-New Acoustic Designs
From cones to cabinets, the PRX908 has been built from the ground up to
leverage the latest JBL acoustic innovations. A patented JBL 2408H-2 1.5”
compression driver with poly-annular diaphragm and neodymium magnet provides
clear, detailed high-frequency response even at maximum volume. High-quality
NTC thermistors protect transducers by reducing power sent to transducers when
approaching thermal limit. Innovative new horns with updated JBL Image Control
Waveguides provide optimum beamwidth and directivity. A next-generation woofer
with ferrite magnet delivers smooth, natural bass and mids.
Power That Performs for You
PRX900 systems effortlessly support large performance spaces with high power
and performance needs. Driven by a highly efficient 2,000W (peak) Class D
power amp, PRX908 provides acoustic clarity and definition with minimal power
compression, even at maximum volume. A bridged woofer amp keeps current spikes
out of the ground and lowers crosstalk harmonics to the tweeter, and A power
factor correction (PFC) power supply stabilizes voltage load sent to the
amplifier. High-quality, high-linearity inductors deliver high power
efficiency and low total harmonic distortion, and low-noise, low-distortion
input gain staging optimizes range and headroom for a diverse gain
requirements. A high-quality DAC and ADC provide near-lossless audio
conversion. And with a full-bandwidth CMRR (Common Mode Rejection Ratio)
greater than 55 dB and THD (total harmonic distortion) rating of <32 dB, noise
is virtually nonexistent.
Dial In Your Sound With Class-Leading DSP
PRX908 is fully loaded with comprehensive DSP, all accessible via the JBL Pro
Connect app and onboard full-color LCD. Processing www.jblpro.com
includes 12-band parametric EQ and optimized system
presets. Onboard dbx DriveRack technology features live and fixed Automatic
Feedback Suppression, soft system limiters and 180ms of speaker delay in
100-microsecond intervals for full time-aligned systems.
Versatile and Scalable
Combine PRX900 Series loudspeakers and subwoofers in a range of configurations
to meet the needs of both mobile scenarios and fixed installs. PRX908 features
dual 36mm pole sockets and six M10 suspension points. A built-in gyrosensor
automatically optimizes tuning depending on monitor or mains placement.
Part of the Pro Connect Ecosystem
JBL’s Pro Connect app offers BLE functionality for system control of up to 10
speakers and line integration with JBL EON ONE MK2, PRX ONE, and EON700
loudspeakers. The app provides full access to to the PRX900 Series’ DSP
package, and users can easily mute channels, effects and speakers with the
touch of a button and can change speaker names and flash all unit LEDs for
ease of speaker identification. App-exclusive features include speaker
snapshots and groupings.
Rugged and Road-Worthy
PRX908 components are housed in a strong, lightweight enclosure that maximizes
both acoustic performance and durability. Its cabinet is constructed from a
polypropylene/talc blend that’s optimized for rigidity, with a computer-
modeled internal ribbing design for maximum structural integrity and minimum
cabinet noise.
In It for the Long Haul
Like every JBL product, the PRX908 undergoes an industry-leading 100-hour
stress test of all components to ensure systems perform beyond expectations in
real-world scenarios. It’s so reliable that it’s backed with an unprecedented
seven-year warranty.
PRODUCT DIMENSIONS
HARMAN Professional 8500 Balboa Blvd. Northridge, CA 91329 USA
© 2022 HARMAN International Industries, Incorporated. All rights reserved.
Features, specifications and appearance are subject to change without notice.
www.jblpro.com