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! Small size, does not occupy much space, can replace the integrated power amplifier and ALPS power amplifier and other high-end discrete potentiometer, irremediable effect!

PCB: dule-goal coated
Working
voltage: Double AC 12-18v
Size: 80MM*50MM
Channel: 4 Channel

ALPS AC12V-18V YS
Joyful DIY PCB Board
Professional Seller
Creative printed board circuit