Filtru activ subwoofer , nou

Vand Filtru activ subwoofer , nou Contine minicablurile de in , out si alimentare Pret fix,nu fac schimburi Description: Features: Dual channel input, subwoofer output, then the output amplifier,can not directly connected to the speaker The multi-stage filter, better bass effect Specifications: Power supply voltage: DC 9V-32V DC single power supply The phase adjustable Potentiometer from left to right: frequency adjustment, bass volume 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 connected to the speaker. It must be connected 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 bass 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: 6.1x2.6cm No Retail Packages