Preamp Amplifier Board Board Module Single Power Supply Board
Features:
channel input, subwoofer output, then the output amplifier,can not directly to the speaker
The multi-stage filter, better effect

Specifications:
Phase Adjustment: 0; 180
Power supply
The phase adjustable
Potentiometer from left to right: frequency adjustment, control
The cut-off frequency: 22HZ-240HZ
Potentiometer shaft center to center spacing: 3cm
Special note:
This board is a preamp board, and is not designed to be directly to the speaker. It must be to the subsequent stage of an amplifier board for this pre-amp to work.
The so-called low-pass filter to filter out the human voice board is more than treble part, retain the low frequency part is amplified to improve the reproduction efforts, people will not hear the sound of musical instruments and high-frequency sound during playback. The buyer must understand knowledge of this area.
PCB size: 2.6cm 2.40 1.02inch
Retail Packages
Quantity: 1Set
Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Package include:
1 * Module
1 * Cable