At IBC 2015, Harman’s JBL Professional announced that its new 7 Series Master Reference Monitors are in production and now shipping.
Developed to meet the requirements of broadcast and post-production facilities that produce content in immersive audio formats, the LSR708i and 705i Master Reference Monitors are the heart of a complete, modular system that can be scaled to any size production room and any number of channels, according to the manufacturer.
The 708i eight-inch two-way, and 705i five-inch two-way installed monitors offer ‘remarkable frequency response and output that belie their small size’. JBL’s new miniature high-frequency transducer—the 2409H—features a low-mass, annular diaphragm design that allows high output with low distortion and high frequency response to 36kHz. Two new high-excursion five-inch and eight-inch woofers, the 725G and 728G, give the 708i and 705i low-frequency output into the 30Hz range and peak system output of 113dB and 107dB respectively.
JBL’s patent-pending Image Control Waveguide and a dividing network work together to produce ‘an imperceptible crossover transition, detailed spatial imaging and neutral response’, particularly in the critical dialogue range. Front-ported birch plywood install-ready enclosures include bottom and rear-panel mounting points, and with a range of available mounting brackets, the speakers’ placement can be optimised to maintain sight lines to video displays.
To reduce enclosure size and installation cost, the speakers are centrally powered by Harman’s Crown DCi 8|300N eight and four-channel power amplifiers. The 705i and 708i can be driven by a single amp channel or bi-amplified, and tuned for room-to-room consistency. Added to the 7 Series system, Harman’s BSS Soundweb London signal processor can be networked with the amplifiers to provide down-mix, bass management capabilities and a range of I/O options including AES, Dante, and AVB. The entire system can be externally controlled using HARMAN HiQnet Audio Architect software, a hardware controller, or wireless tablet.
“The 7 Series is the result of extensive R&D and collaboration with our post and broadcast clients,” said Peter Chaikin, senior manager, JBL Professional Recording and Broadcast. “The system is receiving tremendous response and solving challenges in enterprise and boutique level facilities alike.”