XP7, Balanced, Headphone, Amp, Bare, PCB, Board, 50W, Toroid, Transformer, For, Tube, preamp, 140V, Hiend, Clone, Krell, KSA-5, V2, 0, KSA5, Amplifier, GZLOZONE, DIY, Aluminum, Chassis, Enclosure, Box, 172, 60, 251mm, L12-16, One, Pair, PASS, Single-ended, Class, FET, MOS, Power, Kit, AMP, ZEROZONE, Assembled, HV10B, Base, RA1, Line, , AC, Version, Hifi, Mini, Portable, Stereo, headphone, amplifier, High, current, without, noise, L3-55, style, No, amp, L3-50, 10pcs, AUX, Jack, Audio, Extension, Cables, 3, 5mm, Male, Female, Auxiliary, Cable, 5, Lossless, Speaker, Cord