JBL 708P Data Sheet
708P
8” Bi-Amplified Master Reference Monitor
HIGHLIGHTS 6
Next-generation JBL driver technology
for greater output, dynamic range and
superior frequency response
Patent-pending Image Control Waveguide
for exceptional imaging, detail, a wide sweet
spot and neutral response in any room
Integrated 250W + 250W dual-amplification system
provides exceptional output and greater listening distances
Comprehensive room EQ controls
enable you to compensate for the adverse effects of room acoustics
Compact enclosures
for easy placement and installation where space is limited
JBL 708P is the self-powered reference monitor for critical music recording, lm post and broadcast production
applications. The 708P leverages new patent-pending driver technologies and JBL’s renowned Image Control
Waveguide to deliver extraordinary output, stunning detail, an expansive sound stage, and greater accuracy
in a broad range of rooms. 708P delivers several times the output of other comparably-sized studio monitors,
providing signicantly greater dynamic range and greater working distances.
KEY MESSAGES 6
NEXT-GENERATION DRIVER TECHNOLOGY
JBL 708P leverages JBL patents and next-generation driver
technologies to provide unparalleled output with greater
dynamic range and extended frequency response in
demanding production applications. The JBL 2409H highfrequency compression driver incorporates an innovative
low-mass annular diaphragm to deliver smooth response
beyond 36 kHz, with extraordinary output and very low
distortion. The 728G low-frequency transducer leverages
JBL patented Differential Drive® technology to reduce power
compression for greater sustained output and extended, linear
low-frequency performance below 35 kHz. These proprietary
drivers allow the 708P to deliver two to three times the output
of conventional studio monitors.
PATENTED IMAGE CONTROL WAVEGUIDE
First introduced in the JBL M2 Master Reference Monitor,
the JBL Image Control Waveguide ensures accuracy
and neutrality while providing a wide sweet spot with
increased sonic detail. By enabling an acoustically
seamless transition between the woofer and high-frequency
transducer, the waveguide provides a detailed sound
stage and accurate imaging across the entire frequency
spectrum. Smooth, neutral on- and off-axis frequency
response allows the JBL 708P to deliver neutral response
across a wide listening area in a broad range of rooms.
INTEGRATED DUAL AMPLIFICATION SYSTEM
JBL 708P features a built-in dual amplification system
that’s optimized for its high-output drivers. A 250W amp
powers the 2409H high- frequency transducer and a 250W
amp is dedicated to the 728G low- frequency transducer.
This combination delivers unparalleled output and detail
at greater listening distances, making the 708P ideal
for post production and mastering environments.
COMPREHENSIVE ROOM EQ
The 708P design yields exceptional neutrality in any room,
the monitor also features on board room equalization,
so you can compensate for the adverse effects of room
acoustics and enjoy the most accurate sound reproduction
in any listening environment. In addition to eight bands
of Room EQ, twelve bands of User EQ allow customized
response curves such as the X-Curve, and compensation for
“transmission-loss” when placed behind a perforated cinema
screen. User-enabled digital delay allows virtual alignment
of speakers relative to the listening position, while additional
AV Synchronization delay is available to compensate for
latency in video displays and align with distant FOH systems.
www.jblpro.com
708P
8” Bi-Amplified Master Reference Monitor
SYSTEM INTEGRATION 6
• Integrated amplification and digital signal
processing (DSP) room EQ
• 7 Series studio monitors and the JBL M2 master
reference monitor can be combined to produce
multi-channel systems in any size room
• Compact enclosures and mounting hardware allow
versatile mounting options and unobstructed sight lines
FEATURES 6
• JBL 728G Low Frequency Transducer with Differential
• JBL 2409H High Frequency Transducer
• JBL patented Image Control Waveguide
• 2-channel 250W/LF, 250W/HF
• 8 Room EQ and 6 User EQ filters
• 1 x XLR-1/4” balanced analog audio input
• 1 x XLR AES3 digital input with
• Digital input will accept sample-rates of up to 192 kHz
• RJ-45 network connection for
• Rear panel multi-function controls and LCD display
• Integrated Handles
• Top and bottom mounting points; birch plywood
• Protective steel grilles
®
Drive
delivers low distortion and high SPL
with low-mass annular diaphragm
Class-D amplifier with DSP
1 x XLR pass-through output
Harman HiQnet connectivity
allow selection of Input Sensitivity, Input Trim,
Room EQ, User EQ, Room Delay, AV Sync Delay
cabinets reinforced for safe mounting
SPECIFICATIONS 6
LF DRIVER SIZE: 203mm (8”)
LF DRIVER TYPE: JBL728G
HF DRIVER SIZE: 25mm (1”)
HF DRIVER TYPE:
JBL 2409H Compression Driver
CROSSOVER: 1750 Hz
POWER CONFIGURATION: Bi-Amplified
HF DRIVER POWER AMP: 250W Class D
LF DRIVER POWER AMP: 250W Class D
FREQUENCY RESPONSE +/-3 dB: 41Hz-25kHz
LF FREQUENCY EXTENSION (-10dB): 35Hz
MAXIMUM CONTINUOUS SPL*: 108 dB
MAXIMUM PEAK SPL*: 114 dB
MAXIMUM PEAK INPUT LEVEL: +9 dBV / +23.3 dBu
ELECTRICAL DISTORTION CRITERIA: 0.1%THD @ 1kHz/2.83VRMS output;
<0.5% THD @ 1kHz, Full rated output
SIGNAL TO NOISE RATION, HF: 92dBA (A-Weighted), 83dBr (unweighted),
relative to 2.83VRMS output on HF
SIGNAL TO NOISE RATIO, LF: 85dBA (A-Weighted), 80dBr (unweighted),
relative to 2.83VRMS output on LF
ANALOG INPUT TYPE: 1 x XLR, Female Balanced
DIGITAL INPUT TYPE: 1 x XLR, Female Balanced
DIGITAL INPUT FORMAT: AES3
DIGITAL PASS THROUGH: 1 x XLR, Male
ACCEPTABLE DIGITAL AUDIO
SAMPLE RATES +/- 1%: 44.1 kHz, 48 kHz, 88.2 kHz,
176.4 kHz, 192 kHz
ROOM EQUALIZATION: 8 parametric filters
USER EQUALIZATION: 4 parametric filters, plus HF Shelf, LF Shelf
ROOM DELAY: 18ms
FRAME (A/V) DELAY: 150ms
A/D, D/A CONVERTER: 24 bit / 192 kHz A/D, 32 bit / 192 kHz D/A
INTERNAL PROCESSING: 32 bit Floating Point. 192 kHz Sample Rate
NETWORK INTERFACE: Harman HiQnet™ RJ45 Connector
AC INPUT VOLTAGE: 100-240VAC 50/60Hz +/-10%
ENCLOSURE TYPE: Ported with patented
JBL SlipStream™ port tube
CONSTRUCTION: 12 mm Birch Plywood
H x W x D mm (Inches): 441 x 250 x 312 (17.35 x 9.85 x 12.3)
WEIGHT: 11.5 kg (25.2 lbs)
SHIPPING CARTON (H x W x D): 565 x 359 x 419 mm (22.25 x 14.12 x 16.5 in.)
SHIPPING WEIGHT: 18.1 kg (39.92 lbs.)
ORDER SPECIFICATIONS 6
BOX DIMS (L X W X H): 16 in x 13.5 in x 23.7 in
SHIPPING WEIGHT: 37 lbs
UPC CODE: 691991006333
JBL Professional 8500 Balboa Blvd. Northridge, CA 91329 USA
© 2017 HARMAN International Industries, Incorporated. All rights reserved.
www.jblpro.com
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