110V 220V Class D 500W Digital Heavy Power Amplifier Hifi Audio Module Active Pu

Main features:
1. Balanced input and unbalanced input, with microphone input.
2. Use NTC thermistor to achieve soft start on boot, thereby protecting the speaker from the impact of booting.
3. All models have reliable multiple protections such as start-up delay, overload, over-temperature, and zero drift.
4. Power saving and energy saving. The digital power amplifier can save up to 50% of the power compared to the traditional transformer power amplifier, which is high in efficiency and light.
5. Use low-noise temperature-controlled fans to dissipate heat at close range.
6. Adopt the latest IR technology plan.
7. Adopt AD technology to design the circuit board to make the performance of the circuit board more stable

Specifications:
Output power: (500W/8)/(700W/4)
Total harmonic distortion: <0.01%
Signal to noise ratio: >105dB
Input impedance: balanced 20K / unbalanced 10K
Input sensitivity: 0db/1V
Voltage gain: adjustable, maximum 32dB (40 times)
Frequency response (SUB): 50Hz~500Hz 0.15dB
Conversion rate: 50V/us
Channel isolation: 105dB (1KHz); 80dB (20KHz)
Damping coefficient: 8/1KHz250
Connector input: XLR female, lotus seat input
Indicator light: signal indicator, power indicator, overload indicator.

Package:
1*Subwoofer Amplifier board
1*Power Cable(Optional)