Specification:
Condition: 100% Brand new
Power Supply Voltage: DC10-24V Single power supply DC
Frequency Range: 22Hz-300Hz
Audio Input: Mono or dual channel
Audio Output: Mono
Printed Circuit Board Standard: Approx. 78 x 32mm / 3.1 x 1.3in, Thickness: 1.6mm
Printed Circuit Board Material: Super hardness FR-4 fiberglass board
Plate Fixing Hole Center Spacing: 70x24mm, Hole Diameter: 3.2mm
Potentiometer Shaft Center Distance: 32.5mm
Weight: Approx. 32g / 1.1oz
Package List:
1 x Filter Board
2 x Screw
2 x Gasket
2 x Knob Cap
Note:
This board is a heavy bass preamp board. It will not sound when directly connected to the horn. It must be connected to a pure final stage power amplifier board to make an active subwoofer. The power of the pure final stage power amplifier board is selected according to the shock level of individual needs. The higher the power of the pure final stage amplifier, the more shocking the bass effect will be. The so-called low-pass filter board filters out the high-pitched parts above the human voice, and retains the low-frequency part to zoom in to improve the bass playback strength, and does not hear human voices and high-frequency instrument sounds during playback.