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JBL

JBL LSR708i 8" Master Reference Monitor

$1,599.00

The JBL LSR708i is an 8-inch Master Reference Monitor designed for critical listening and professional audio production, particularly in demanding broadcast and post-production environments including immersive audio setups. Unlike its powered counterpart (708P), the 708i is a passive studio monitor, requiring external amplification and processing, offering flexibility in system design and simplifying wiring in multi-channel configurations. It's built to deliver exceptional detail, extended frequency response, and remarkable output from a compact enclosure.

View Product Features

• 8" High-Excursion LF Driver (728G): Delivers powerful, sustained low-frequency output with minimal power compression down to 35 Hz.
• 1" High-Frequency Transducer (2409H): Features a low-mass annular diaphragm for smooth response beyond 40 kHz with low distortion.
• Image Control Waveguide: Patented technology ensures precise imaging, a wide sweet spot, and consistent, uncolored sound across the listening area.
• Passive Design: Requires external amplification and processing, allowing for centralized system management and streamlined wiring in multi-channel installations.
• Modular & Scalable: Designed to integrate seamlessly with other JBL 7 Series monitors and the M2 Master Reference Monitor to create various system configurations.
• Durable & Install-Friendly Enclosure: Constructed from birch plywood with multiple mounting points (top, bottom, rear) for versatile placement options in professional environments.

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About the JBL LSR708i 8" Master Reference Monitor

The JBL LSR708i is an advanced 8-inch two-way studio reference monitor, representing the pinnacle of the Master Reference Monitor series, engineered for the most critical listening and audio production tasks in professional control rooms, post-production suites, and broadcast facilities. It incorporates JBL's groundbreaking Differential Drive dual voice coil woofer technology, paired with a high-definition 1-inch imaging waveguide, to deliver exceptional accuracy, dynamic range, and ultra-low distortion. This monitor is specifically designed to reveal the finest details in a mix, providing an unparalleled translation of audio work across all playback systems. Its sophisticated design includes integrated boundary compensation and seamless compatibility with JBL’s Intonato 24 automated room calibration system, allowing it to be perfectly tuned to the unique acoustics of any listening environment.

A core innovation in the LSR708i is its integration of advanced DSP and room correction capabilities directly within the monitor. When used with the Intonato 24 system and a calibration microphone, it can automatically measure and correct for room modes, speaker placement issues, and boundary reflections, applying precise EQ, level, and time alignment adjustments. This results in a perfectly neutral listening experience, free from the colorations imposed by the room itself. The monitor's rear panel hosts extensive control options, including boundary EQ switches, input sensitivity adjustment, and both analog XLR and digital AES3 inputs, facilitating integration into the most complex professional audio infrastructures.

Constructed with an acoustically inert enclosure to eliminate unwanted resonance, the LSR708i operates as a bi-amplified system with dedicated, optimized amplification for each driver. Its performance is characterized by an extended frequency response, immense headroom, and a vast, stable sweet spot enabled by the precise imaging waveguide. By uniting state-of-the-art transducer technology, intelligent room-aware DSP, and robust professional build quality, the JBL LSR708i establishes a new benchmark for accurate monitoring, providing mastering engineers, mixers, and content creators with the absolute sonic truth needed for definitive audio decision-making.

Key Features

• 8" High-Excursion LF Driver (728G): Delivers powerful, sustained low-frequency output with minimal power compression down to 35 Hz.
• 1" High-Frequency Transducer (2409H): Features a low-mass annular diaphragm for smooth response beyond 40 kHz with low distortion.
• Image Control Waveguide: Patented technology ensures precise imaging, a wide sweet spot, and consistent, uncolored sound across the listening area.
• Passive Design: Requires external amplification and processing, allowing for centralized system management and streamlined wiring in multi-channel installations.
• Modular & Scalable: Designed to integrate seamlessly with other JBL 7 Series monitors and the M2 Master Reference Monitor to create various system configurations.
• Durable & Install-Friendly Enclosure: Constructed from birch plywood with multiple mounting points (top, bottom, rear) for versatile placement options in professional environments.

JBL LSR708i 8" Master Reference Monitor Specs

Transducer and Amplification
Woofer Technology
8-inch Differential Drive
Tweeter and Waveguide
1-inch with High-Definition Imaging Waveguide
Amplifier Configuration
Bi-amplified
Total System Power
Not Specified
Calibration and Room Integration
Room Calibration
Intonato 24 Compatible
Boundary EQ
User-selectable Presets
Auto-Calibration
Via Measurement Microphone & Software
Input and Control Connectivity
Input Types
Analog XLR, AES3 Digital
Input Sensitivity
Adjustable
Room Compensation
Toggle Switches (Boundary, HF Trim)
Acoustic Performance
Frequency Response
36 Hz - 40 kHz
Maximum SPL
112 dB (per pair at 1m)
Distortion
Ultra-Low (Differential Drive Design)
Physical and System Details
Enclosure Design
Acoustically Inert
Control Interface
Rear Panel Switches & Knobs
Primary Application
Critical Studio Mastering & Mixing

Key Features

• 8" High-Excursion LF Driver (728G): Delivers powerful, sustained low-frequency output with minimal power compression down to 35 Hz.
• 1" High-Frequency Transducer (2409H): Features a low-mass annular diaphragm for smooth response beyond 40 kHz with low distortion.
• Image Control Waveguide: Patented technology ensures precise imaging, a wide sweet spot, and consistent, uncolored sound across the listening area.
• Passive Design: Requires external amplification and processing, allowing for centralized system management and streamlined wiring in multi-channel installations.
• Modular & Scalable: Designed to integrate seamlessly with other JBL 7 Series monitors and the M2 Master Reference Monitor to create various system configurations.
• Durable & Install-Friendly Enclosure: Constructed from birch plywood with multiple mounting points (top, bottom, rear) for versatile placement options in professional environments.

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