Product description:

• Using new imported audiophile-grade components, it can reach 250W at 4 ohms, and can be tested with an audio analyzer.

• The power is sufficient, the waveform is perfect, the distortion is small, the waveform has no burr, no other clutter, it is perfect!

• This board is based on the original circuit optimization design of IRAUDAMP7 of the American International Rectifier Company, and is carefully designed with the original imported chip IRS2092S. The whole board is equipped with red robe solid capacitors, ELNA blue robe, purple robe for coupling filtering, and imported purple robe high frequency High-end components such as capacitors, and high-speed SMT patch, ultrasonic reflow soldering production makes the power amplifier more stable and less distortion, which can be compared with extraordinary power amplifiers! The overall design is beautiful and generous, and the layout is reasonable!

• With a large green radiator and a purple high-frequency capacitor, it is very beautiful! !

• Purple high-frequency low-resistance capacitors with stable and reliable performance. The output filter adopts imported square digital power amplifier inductors and film tonic capacitors for digital power amplifiers, which makes the output distortion smaller, the bass is powerful, the mid and high frequencies are clear, and the tone is sweet!

• The input uses ELNA purple robe audio capacitors for audio coupling, the sound is sweet and natural, transparent and powerful!

• The board is powered by a dual DC power supply. If it is not a switching power supply, the parents who use the ring cattle power supply need to add a rectifier and filter circuit by themselves!

• This board is a finished board with mono, if you need dual channels, please buy two

Parameter:

• Power supply voltage: dual DC power supply ±42---±58V

• Rated output power: 250W (±50V power supply 4 ohm speakers, distortion <=0.05%)

• Efficiency: >=90%

• SNR: 90dB

• Total harmonic distortion:

• 250W (±50 power supply 4 ohm speakers, distortion <=0.05%)

• 250W (±50 power supply 8 ohm speakers, distortion <=0.01%)

• Frequency response range: 20Hz-20KHz

• Speaker: 4-8Ω

• Voltage magnification: 36 times

• Output short circuit protection: yes

• Dimensions: 86x56x29mm

Precautions:

• The rated power supply voltage is ±50V for dual power supply, and the voltage is ±42---±58V. It can work normally. Do not connect the positive and negative poles of the power supply wrongly to avoid burning the board.

• The power supply is recommended to be a DC dual power supply ±50V power supply with better filtering

• Speakers are recommended to use 6-10 inch 4 ohm-8 ohm speakers

• Although the audio output has short-circuit protection, try not to short-circuit

• Please check carefully before turning on the power to ensure that the wiring is correct before turning on the power.

• The voltage magnification of this board is fixed at 36 times. If the output power is not enough, the pre-amplification will be added according to the specific situation.