- Contact Person : Ms. Wang Susan
- Company Name : Nanchang Hangtian Guangxin Technology Co., Ltd.
- Tel : 86-791-83831099,13698003173
- Fax : 86-791-83831088
- Address : Jiangxi,Nanchang,3F, Scientific research industrial base, North campus, Nanchang Institue of Technology,Changbei economic development zone,Changbei district
- Country/Region : China
- Zip : 330000
pre amplifier for PA public address system
pre amplifier for PA public address system
1. Introduction
The digital IP Pre-Amplifier (HT-A9009) is the matching product of HT-A9000, adopts 3.5inch full color LCD display, graphic type friendly operation, with functions like AOD broadcast, Live broadcast, USB driver play, paging broadcast, power management etc.
2 Features:
Ø 3.5inch full color LCD display, graphic type menu operation
Ø Standard 2U case
Ø Can receive audio file by network and decoding output
Ø Built-in WEB server, with browser remote configuring function
Ø With AOD broadcast, live broadcast, USB driver play, paging broadcast
Ø Built-in AOD broadcast collection module, realize real time signal collection function
Ø Local microphone and line input, volume adjustable
Ø Built-in 4CH intelligent power management, can switch on or off the power of external amplifier according to the sound
Ø Built-in 1CH network IP decoding, stereo audio output, can be extended to connect with 4pcs amplifier
3.technical specification:
| Communication protocol: | TCP/IP protocol, RTP/RTSP stream media protocol | ||||
| Communication port: | Standard RJ45 x 1 | ||||
| Audio format: | MP3 / MP2 / G729 / G726 / ADPCM | ||||
| Sampling rate: | 8~48KHz | ||||
| Transmission rate: | 100Mbps | ||||
| Audio mode: | 16byte stereo, CD tone | ||||
| Analog audio input: | MIC input: 10MV 6.3MM | ||||
| Analog audio input: MIC input: 10MV 6.3MM | |||||
| Mono socket line input: | Stereo 1V p-p, 10K RCA socket | ||||
| Line output: | Stereo 1V p-p, 1K RCA socket | ||||
| Power consumption: | ≤30W | ||||
| Output frequency: | 20Hz~16KHz | ||||
| SNR: | >90dB | ||||
| Audio output level: | 775mV / 1KΩ | ||||
| Power supply: | AC 220V / 50Hz | ||||
4.Front panel:
1. Power indicator
2.Power switch
3. USB port: For USB driver or Bluetooth dongle
4. MIC input port
5. LCD display screen
6. Up / Down: For control the moving direction of the cursor, menu and list selection, volume adjustment, and switch on the Bluetooth
7.Back: For return to previous interface, or quit from current operation
8. Number button 0~9: For input 0~9 numbers, and buttons 1~6 can be used to control music playing while under Audio-On-Demand status; button 3 can response paging request; button 0 can turn-off the screen when playing music
9.Enter: Access to menu, confirm selection, or enter into some function interface
10. Zone indicator lights and zone button
5.Rear panel:
1. RJ 45 network port
2.Audio output
3. Audio input
4. MIC input
5. 4CH amplifier power management
6.AC~220V 50Hz
6.Wiring diagram:
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pre amplifier for PA public address system
