Technical Specification

Model: LF-7707

Network Interface: standard RJ45 input

Transmission Speed: 100Mbps

Protocol Support: TCP/IP,UDP,IGMP (Multicast)

Audio Format: MP3

Audio Mode: 16-bit CD quality

Sampling Rate: 8K~48KHz

AUX Input Sensitivity: 350mV  (unbalanced)

Frequency Response: 80Hz~16KHz  +1/-3dB

THD: ≤1%

SNR: >65dB

Power Consumption: ≤50W

Circuit Protection: Overload, short circuit protection

Operating  Temperature: 5℃~40℃

Operating  Humidity: 20%~80% relative humidity, non-condensing

Operating Power Supply: ~190-240V 50-60Hz

Dimension: 190×180×280mm   

Net Weight: 3Kg


It is wide application to classroom, multi-media classroom, office, conference room, prison, hospital office, metro, and other places, to broadcast some recorded audio documents or background music, and to be used as local broadcast.


*  Professional integration wall mounted design, the speaker case subjects to sound

resonance principle design concept, with elegant and beautiful appearance.

*  Adopt embedded computer and DSP audio processing technology, high speed industrial SCM system chips, to ensure the start-up time is less than 1 second.

*  Build-in one network hardware audio decoding module, it supports TCP/IP, UDP, IGMP(multicast protocol), to realize the network transfer audio signal of 16 CD class perfect sound quality.

*  Build-in 2 channel digital amplifier 2 x 20W,  1 channel to connect main speaker, the other connect assistant speaker to fulfill smooth and strong sound quality, with network volume setting.

*  With 1 AUX input, independent volume potentiometer control, support offline local.

paging function. Support mute volume preset and background music mix output preset

*  Build-in 2 priority settings:

                    1) Network voice alarm has higher priority than AUX and Network BGM

                    2) AUX has higher priority than  Network BGM

*  Compatible with Router, PABX, bridge gateway, modem, intelnet, 2G, 3G, 4G, multicast, unicast and any other network construction.

*  Digital products with easy expansion, without geographical restrictions, no need to increase management equipment on the machine room , using a common network from the design concept of line construction for easy installation.

*  It supports remote hardware update of the terminal, no need go to upgrade at the local site, to reduce maintenance burdens and make more simple operation.