JBL 4660A

Commentary

A speaker system that uses a differentiated coverage horn.

The 4660 is a speaker system developed for SR (Sound Reinforcement) and MI (Musical Instrument). It has special directional characteristics controlled so that uniform sound pressure level can be obtained in every corner room in small halls, conference halls, event halls, etc.

A horn type unit that combines the Differentiated Coverage Horn 2346-1 and 2426H is installed in the high range.
The Differentiated Coverage Horn is uniquely shaped and is designed to have a deformed pattern of 110 ° to the front and 38 ° to the rear of the room, which creates a square coverage area on the floor when suspended slightly from the ceiling, allowing a single speaker to cover a space that would otherwise require three or more high-band horns with a conventional speaker.
The service area is based on a square area with a width to depth ratio of 2 : 2.75. However, you can adjust the hanging angle of the speaker to accommodate various size ratios.

Equipped with 38 cm cone type woofer 2225H in the low range.

The enclosure uses a bass-reflex design with a front-mounted woofer layout to ensure good frequency balance in the back of the room.
It is made of 19 mm thick hard multi-layered plywood with polyurethane coating on the entire surface, and has both high sound quality and durability.

Model Rating

Method	2-way, 2-speaker, bass reflex system, ceiling mounted type
Units Used	Low Band : 38 cm Cone Type (2225H) For High Range : Horn Type (2426H + 2346-1)
Frequency characteristic	60 Hz ~ 21.5 kHz
Allowable input	150W (Continuous Pink Noise)
Impedance	8 Ω
Output sound pressure level	99dB/W/m
Crossover frequency	800Hz
Directional property	H38 ° ~ 110 ° xV50 °
External dimensions	Width 607x Height 1,102x Depth 518 mm
Weight	61.2kg