1. Professional 2 U height cabinet design.

2. 13 input channels: including regular microphone input: TRS6 .35×5, emergency microphone input: TRS6 .35×2, fire signal input: TRS6 .35×1, two-channel standard line input: RCA×5, fire Control interface: industrial terminal block × 2; output channel: TRS6 .35 × 3, RCA × 1.

3. The fire signal input has the highest priority. After the fire control interface is triggered by two short circuits or any one of the two DC 2 4 V, the output signal will be forcibly switched to the signal of the fire input interface.

4. The emergency microphone input is the second level priority.

5. Microphone 1 has third level priority.

6. The microphone (MIC 2, 3, 4, 5) and line (A U

7. Each microphone can independently adjust the volume, treble (T R E B L E), and bass (B A S S); each of the 5 line inputs can independently adjust the volume, treble (T R E B L E), and bass (B A S S).

8. There are a total of 20 tone adjustment knobs to adjust the treble and bass of 5 line inputs and 5 microphone inputs respectively.

9. With centralized control of total volume.

10. With LED signal input indicator light; 5-segment LED light indicates output signal strength.

11. Microphone 1 (MIC 1) has a mute function and the mute depth is adjustable.

12. With bell prompt function, and the bell volume is adjustable.

13. Input sensitivity: line and alarm: -8dB (300mV); microphone: -36dB (13mV); emergency microphone: -34dB (15mV).

14. Output voltage: line output: 0db (775mV) ±1dB/620Ω; recording output: 0db (775mV) ±1dB/10KΩ.

15. Emergency microphone activation control threshold: 5mV.

16. Input impedance: >10KΩ.

17. Tone characteristics: bass 100Hz (±10dB ±2dB); treble 10KHz (±10dB ±2dB).

18. Frequency response: Line: 30Hz—20KHz ±4dB; Microphone: 40Hz—16KHz ±4dB.

19. Total harmonic distortion: 40Hz — 16KHz ≤1%

20. Noise: ≤0.5mV (complete machine) A-weighted

21. Signal-to-noise ratio: microphone ≥70dB; line ≥80dB

22. Power supply voltage range: 180V ~ 240V | 50Hz

23. Overall machine size: 480×100×280mm

24. Machine weight: 3.5Kg. 



1. Standard 2U height cabinet design.

2. With voltage and current working indicator lights, constant voltage/constant resistance switch, and two output modes of constant resistance and constant voltage. Constant voltage output is available at 70V and 100V.

3. It has overheating protection, short-circuit protection (electronic protection + relay protection), startup delay, shutdown fast discharge, and automatic recovery after the overload state disappears, which can effectively avoid the phenomenon of no output caused by instantaneous overload amplifier protection.

4. A variety of protection circuits are set up, including power-on delay squelch, instant shutdown when power is off, speaker short-circuit protection, and output protection when the temperature reaches 95 degrees.

5. With RS485 control interface, the status and temperature of the power amplifier can be monitored through the broadcast management system host.

6. With short-circuit input and output ports, used for series connection between power amplifiers and sequential switching of power amplifiers.

7. The optional plug-in network module NET-212 turns the power amplifier into an IP network power amplifier. The whole machine adopts a slot-type design concept, which is plug-and-play.

8. Input sensitivity: 0dB (775mV) unbalanced input;

9. Output mode: 70V/100V /4~16Ω.

10. Signal-to-noise ratio: ≥90dB (constant voltage 100V, A-weighted).

11. Output power: 650W.

12. Frequency response: 100Hz-18KHz (+2~-5dB) (JP1 on the power amplifier board is set to the default, and the factory setting of the machine is the default); 80Hz-8KHz (±2dB) (JP1 on the power amplifier board is set to wideband).

13. Total harmonic distortion: 100Hz-18KHz≤0.8% rated output attenuation 3dB.

14. Power supply range: 220V/50Hz (±10%).