The main parameters:
Name: Preamplifier tuning board
Power requirements: Dual 12V (10-14V)
Power consumption: 5 W
Size: 100mm * 60mm
Mounting hole size: M3
Mounting hole distance: 93mm * 53mm
PCB Board Size: 10 * 60 * 23mm / 3.94 * 2.36 * 0.9in
Pre-chip: NE5532
Audio input interface: Lotus socket
Audio output interface: 3.54-3 p
Number of channels: 2 channels
Type of TUNING: 4 channels (treble + medium + bass + total volume)

Package Included:
1 x NE5532 Preamp Pre Amplifier Audio Adjustment Plate Double AC12V HIFI Amplifier Preamplifier Volume Tone Control
Instructions are NOT included. We don't provide technical assistance please make sure that you are familiar with the product before purchasing.