8" Master Reference Monitor

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Next Generation Systems for Post and Broadcast Production in Control Rooms and Trucks

The first in JBL’s new 7 Series line, the 705i and 708i models answer the call for next generation multi-channel monitoring in post rooms, broadcast facilities and trucks. Leveraging patented technologies developed for our flagship M2 Master Reference Monitor, 7 Series Studio Monitors deliver detailed imaging, extended frequency response and remarkable output from compact enclosures. Centrally amplified and tuned, and easily installed, 705i and 708i Studio Monitors are the heart of an elegant, scalable system for broadcast and post facilities working in immersive audio formats.


  • Next Generation Systems for Post and Broadcast Production in Control Rooms and Trucks
  • Next Generation Driver Technology
  • Patent Pending Image Control Waveguide
  • Compact, Install Friendly Enclosures


Patent Pending Image Control Waveguide

First introduced in the JBL M2 Master Reference Monitor, the Image Control Wave Guide technology allows

  • A seamless crossover and uncolored response in the critical dialog range.
  • Neutral off-axis response for greater accuracy and room-to-room consistency
  • Detailed imaging and a coherent transition between screen channels, surrounds and overhead speakers.

Next Generation Driver Technology

Meeting the dynamic range and extended frequency response requirements of today’s production formats, 7 Series incorporates JBL next generation “Super Drivers.”

  • The new 2409H High Frequency transducer incorporates an innovative low-mass annular diaphragm that delivers smooth response beyond 40 kHz, with extraordinary output and very low distortion.

JBL developed custom low frequency transducers for remarkable performance of the 7 Series

New 725G and 728G 5” and 8” high-excursion low frequency drivers in the 705i and 708i deliver continuously high output with minimal power compression and low frequency response into the 30Hz range.

System Integration

  • Modular and scalable for number of channels and room size
  • 7 Series Studio Monitors and the JBL M2 Master Reference Monitor can be combined to produce a wide range of systems
  • Compact enclosures and mounting hardware allow versatile mounting options and unobstructed sight lines
  • Centralized amplification and processing eliminates the requirement for power source at each speaker location
  • BSS BLU link Networked Audio for ease interface and reduced system noise
  • Harman HiQnet equipped components can be centrally controlled via hardware, software or wireless tablet


  Version Language Size Uploaded
Data Sheets
file type icon 7 Series Data Sheet
updated: Apr 29, 2019
    726 KB Apr 29, 2019
file type icon 7 Series Set Up Guide
updated: Oct 30, 2019
    1.04 MB Oct 30, 2019
file type icon Recording & Broadcast Full Line Catalog
updated: Oct 22, 2020
    1.81 MB Oct 22, 2020
CAD Drawings
file type icon 708i Customer Drawings
updated: Apr 29, 2019
    509 KB Apr 29, 2019
platform icon HiQnet Audio Architect
updated: Nov 10, 2020
    Nov 10, 2020
file type icon 708i_Front_Z
updated: Oct 22, 2020
    232 KB Oct 22, 2020
file type icon 708i_Angle_Z
updated: Oct 22, 2020
    216 KB Oct 22, 2020
file type icon 708i_728G_Z
updated: Oct 22, 2020
    138 KB Oct 22, 2020
Speaker Tunings
file type icon 708i Crown DCi Settings
updated: Oct 22, 2020
    155 KB Oct 22, 2020
file type icon 7 Series and M2 Crown DCi Tuning
updated: Feb 24, 2020
    176 KB Feb 24, 2020
file type icon 708i BiWire BSS London Architect
updated: Oct 22, 2020
    130 KB Oct 22, 2020
file type icon 708i BSS SingleWire London Architect Tunings
updated: Oct 22, 2020
    115 KB Oct 22, 2020

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Frequency Response (±3 dB) 45 Hz – 23 kHz
Frequency Range 35Hz – 36 kHz
Maximum Continuous SPL (80 Hz - 20 kHz) >108 dB SPL / 1m
Maximum Peak SPL (80 Hz - 20 kHz) >114 dB SPL / 1m
HF Driver 2409H
LF Driver 728G - 8in (127mm)
Dividing Network Transition Frequency 1.7 kHz
Input Connectors Phoenix Terminals accept 12 gauge speaker wire
Dimensions (HxWxD) 17.25 x 9.75 x 11.5 in (438 x 248 x 292 mm)
Net Weight (each) 25.2 lb (11.5 kg)
Enclosure Birch plywood reinforced for mounting
Mounting Top, bottom and rear mounting points. 4-hole mounting pattern