Outdoor Speaker HiFi Preamplifier Board NE5532x3 Built-in Boost Module Bluetooth Receiving MP3 Decoding with Control Panel

Outdoor Speaker HiFi Preamplifier Board NE5532x3 Built-in Boost Module Bluetooth Receiving MP3 Decoding with Control Panel

Description:
- This circuit adopts three NE5532 chips for TI, featuring one stage of gain, one stage of buffering, and one stage of tone processing.
- It is equipped with a mute circuit during power on and off, minimizing any clicking sounds.
- It also has protection against reversed power supply polarity and can operate stably within a wide voltage range of DC 9-29V. 
- It is equipped with a built-in boost module that can convert a single power supply into ±14.5V dual power supplies to power the circuit. It features a wide dynamic range and strong driving force, capable of driving high-power amplifiers. 
- Two impedance interfaces are designed for output, facilitating connection to different power amplifiers. The low-impedance interface can be connected to pure power amplifiers, while the high-impedance interface can be directly paralleled to the line input terminals of integrated amplifiers with preamplifiers or other audio equipment. 

Specification:
- Static power consumption: approximately 1W
- Frequency response: 20Hz - 20kHz
- Amplification gain: 14dB
- Tone adjustment range: ±15dB
- Input impedance: 50K
- High impedance output impedance: 10K, output amplitude: 0.7Vrms
- Low impedance output impedance: 600Ω, output amplitude: 3.5Vrms
- Product size: 50 x 80mm

Package Included:
- 1 x Preamplifier Board
- 1 x Control Panel
- 1 x Remote Control