Product name: Tone board 2.0 dual-channel preamp board
Op Amp: OPA2604 version/ NE5532 version
The pitch of the potentiometer of the tuning board is 24-24-35mm, the knob cap is sent randomly, and the extension cord is 15CM by default.
The tuning board can be used with dual power supplies, AC and DC, and batteries. If DC power is used to connect in series, use at least dual 6V, 10W power supply. Single power AC and DC can be used. Note that a single battery power supply cannot be used.
Power supply: dual AC12-22V
1PCS Tone board 2.0 dual-channel preamp board