*High quality audio gain booster (volume booster) with built-in gain adjust. *Improves the performance of power amplifier *Easy to install using connecting wires *Premium quality dual layer PCB *Designed for class AB and class D amplifiers *Supports all range of audio frequency (20Hz-20KHz) without any distortion *Amplifies the input signal by 10 times and can adjust it using gain control according to the performance of amplifier
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