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1. Class AB Amplifier with Bridge Function

2. Length of Heat Sink: 330mm

3. Short Circuit Protection & Overtemperature Protection

4. LPF & HPF & Gain Controls for Rear Channels

5. HPF & Gain Controls for Front Channels

6. Dual Coils to Provide bigger Power

7. LPF & HPF & Gain Controls for Rear Channel

8. HPF & Gain Controls for Front Channel

9. Bass Boost: 0dB/6dB/12dB

10. LPF Filter: 50Hz-250Hz

11. HPF Filter: 120Hz-3KHz

12. THD≤0.1%

13. Frequency Response: 30Hz-20KHz

14. Signal to Noise Ratio: >90dB

15. Input Sensitivity: 100mV

16. RMS Power: 4×80W

17. Same heat sink is available for 1×500W, 2×50W, 2×80W, 4×60W, 4×80W, 4×100W also