The tone board adopts AN4558 advanced op amp, and has treble, mid-range and bass independent adjustment. With three-terminal voltage regulator circuit, the circuit is stable and reliable. The front tuning board can be adapted to most pure power amplifier boards.
Parameter:
Model: Preamp tone board
Working voltage: Double AC12-15V
Op amp type: 4558
Potentiometer specifications: 15mm/20mm
Size: 20*6.5*3cm
Packaging:
1pc