1). Power supply voltage: DC10-24V DC single power supply
2). Frequency range: 22Hz-300Hz
3). Audio input: mono or two-channel
4). Audio output: Mono
5). PCB specifications: 78x32mm, Thickness: 1.6mm
6). PCB Materials: FR-4 ultra-hard glass plate
7). Finished board Weight: 30g
8). Plate mounting holes center to center spacing: 70x24mm, hole diameter: 3.2mm
9). Potentiometers axial center spacing: 32.5mm

Note:
     A kindly reminder: the board is Subwoofer Front Board, directly connected to the speaker will not make any sound, must be received after the power amplifier board made of active subwoofer to sound, pure power amplifier board after the power according to personal needs. The degree of choice, the latter part of the power amplifier power bass effect more shocked. The so-called low-pass filter board is to filter the human voice above the treble part, keep the low-frequency part of the amplification to improve the intensity of bass playback, playback will not hear the sound and high frequency of the instrument sound. Please kindly noted.

 

Tested by ICStation's Outstanding Partner Hugatry's HackVlog:
（Note: The Color of the Rotary button will be slightly different, hope your kindly understanding.）

Learn More Details in the Video:
(The language in the video is English)