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fuma98
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NE5532 Stereo Music Audio Signal Pre Amplifier Amp Headphone Amplifier Gain 20db RCA 3.5MM Volume Control Tone PreampThis circuit can be used when the sound of your device is small when connected to the power amplifier. It is suitable for small audio signal amplification, the amplification factor is 10 times (20db), and the front 3.5mm interface can be connected to headphones;Power supply: DC9-19V (Power supply not included)The amplifier chip is a dual op amp NE5532Input and output are 3.5mm ordinary headphone and RCA lotus Size: 87*50*37MM
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