Vbestlife Subwoofer Preamp Board - DC12V Single Power Supply Low Pass Filter Board, HiFi Digital Power Amplifier Module for DIY Audio System & Speaker Projects - Perfect for Home Theater, Car Audio & Studio Sound Systems

Product Description

How to Use: Use after wiring. Specification: Item Type: Preamp Board Material: PCB Input: DC12V Frequency Range: 22Hz-300Hz Sound Input: Mono or Binaural Sound Output: Mono Package List: 1 x Preamp Board2 x Nut 2 x Gasket 2 x Knob Cover Note: 1. This board is a subwoofer preamp board. No sound is produced when directly connected to speakers. It must be connected to a pure final amplifier board to make an active subwoofer. The power of the pure power amplifier board is shocking according to individual needs. The degree of selection, the higher the power of the pure final amplifier, the more shocking the bass effect. The so called low pass filter board filters out the high pitched part above the human voice, retains the low frequency part and amplifies the bass playback strength, and cannot hear the human voice and musical instruments during the playback process. Buyers must be aware of this and avoid using it without knowing how to use it.2. Components may vary slightly from batch to batch, but functional performance remains the same.