ITEM NAME:Don't need power supply passive front amplifier tone sound palette PCB DIY S Hn 100% Brand New! Passive design does not appear ground loop bottom noise problem! And independent design has shielded ground wire, and audio signal ground wire completely separated, clutter not disorderly string! The installation is simpler! The volume control panel can be directly separated! DIY is very convenient! The potentiometer shaft spacing is 25mm, installed on the knob is not my! 1.6mm military grade board! Sufficiency of foot! The center distance of the potentiometer and screw is 25mm Lin: left channel signal input Rin: right channel signal input Lout: left channel signal output Rout: right channel signal output Packing:1*PCB DIY kits.1.6mm military grade board! Sufficiency of foot! Passive design does not appear ground loop bottom noise problem! And independent design has shielded ground wire. DIY is very convenient! Lout: left channel signal output.
