LR-660 Conference System

LR-660

Built-in power supply, with an output power of 400W.

Main unit control up to 250pcs and power up to 64pcs microphones.

Equipped with an audio output interface.

Featuring a BAL interface for easy connection to various effects processors.

Built-in tone processing unit for adjusting bass and treble.

Independent volume control for the system.

Includes one AUX input with independent volume control.

Has a set of wired microphone input interfaces with independent volume adjustment.

Comes with a USB recording and playback module, enabling USB recording and playback functions.

Built-in 1W monitoring speaker with independent volume control.

High-fidelity sound quality and automatic feedback suppression function.

Optional automatic shutdown function for delegate units.

The panel has three function setting buttons: “MODE,” “SET,” “ENTER.”

Supports various conference modes such as free discussion, first in, first out, and restricted speaking.

Can provide power and data communication ports for a video central processor.

Can be placed flat on a tabletop or mounted in a 19-inch standard rack cabinet.

Model LR-660M
(Main unit)
LR-660D/LR-660C
(Microphone unit)
LR-670D/LR-670C
(Microphone unit)
Audio Output LINE OUT (unbalance),
REC OUT (unbalance) BAL OUT
/ /
Audio Input MIC IN (unbalance), AUX IN (unbalance) / /
Output Impedance <1KΩ / /
Effects Processor Interface EFX IN/OUT
(Connect the frequency shifter)
/ /
Voltage AC220V DC24V (Supply by 8PIN cable) DC24V (Supply by 8PIN cable)
Power consumption 400W 2W 2W
T.H.D. 0.1%@1KHz <0.05% <0.05%
Product Dimension 480X330X90mm 205X117X55mm / MIC pipe 420mm 143X110X50mm / MIC pipe 240mm
SNR >96db >75db >75db
Control port RJ45 interface / /
Sensitivity -56dB -44dB ±2dB -44dB ±2dB
Frequency response 50Hz-16KHz 40Hz-16KHz 40Hz-16KHz
Color Grey Grey Grey
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