Product description:
47 headphone amplifier board portable headphone amplifier hifi fever grade headphone amplifier board finished diy single power supply
This version is a single power supply amp, optimized and improved many times, because of its simple structure and good sound.
Op Amp: OP2604
PCB size: 80*40mm
This is a single power supply version DC9-30V, it is recommended to use 12-30V DC voltage. The higher the relative voltage, the stronger the driving force Op amp OP2604, you can change different op amps to achieve different sound styles.
This version of the power supply is only filtered by the power supply. Please use a high-quality pure power supply to achieve the design specifications. It is recommended to use battery power to obtain pure sound. Impure power may cause noise.
The circuit design is exquisite, using imported fever capacitors, FR-4 high-quality tinned PCB, not only beautiful, but also good sound, the judgment method of the bottom noise, the input terminal is short-circuited, or the volume potentiometer is turned off to the end to test, to ensure silence and silence, connect it The computer or mobile phone feedback is noisy, it is not a problem with the amp.
Package included:
1Pcs 47 headphone amplifier board