- wuhan, ???, China
- US $54.99
- Jun 9th
YS HIFI 4-Channel Relay Volume Control Board Potentiometer ALPS AC12V-18V Specification: This product adopts advanced double-sided gold-plated PCB (2MM thick substrate, copper foil thickness 75U, Not 50U which is not comparable), all music signal channels use the military 718 plant resistance (the plant that produce for Shenzhou VI), through the way of relay switch resistance, it can complete 128 step adjustment, without pop, but with pure resistance circuit, higher fidelity!