Vacuum tube preamplifier assembly kit [TU-8500] Use vacuum tube or the like: 12AU7 (ECC82)  2 this / OP-AMP: NJM2068DD  2 this Input terminal: RCA jack 4 system (PHONO, LINE1 ~ 3) /3.5mm stereo jack 1 system (LINE3 priority input)  1 / output terminal: RCA jack 1 system (PRE OUT) Power supply voltage: AC100V 50 / 60Hz IEC standard 3P inlet type /  during assembly to 115V, 200V, 230V specifications can be changed / rated power consumption: 8W Body dimensions: W252  H73  D270mm (including protrusions) / body weight: about 3.1kg (upon completion, not including power cord) English product site URL:http://www.elekit.co.jp/en/product/TU-8500