Japan, ALPS, motor, Volume, potentiometer, 100K, 0905, Aluminum, enclosure, headphone, amplifier, case, , Power, supply, chassis, DIY, BOX, GZLOZONE, Hifi, Mini, Portable, Stereo, High, current, without, noise, L3-55, Tube, style, No, amp, L3-50, 4pcs, aluminum, machine, feet-GOLD, Diameter, 44mm, high, 17mm, with, screw, thread, store, NEW, feet, --GOLD, model, --silver, HIFI, USB, DAC, OTG, decoding, WM8740, OPA2107, L3-47, 10pcs, lot, 3, 5mm, Male, Plug, RCA, Female, Jack, Adapter, Cable, Headphone, AUX, Audio, 100pcs, Mono, Earphone