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 signicantly 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