This is an eye-catching SUN AUDIO preamp with a black face and bronze panel. All transformers are custom-made by Tamura, and they are particular about using lead wire types without using printed circuit boards. There are dullness in places and minor scratches (Daiki Goto)
Maintenance information: 2023.4.15 maintained (MONO circuit, balanced volume circuit, normal/balanced output circuit, TAPE input/output circuit do not function, and since many circuits have been changed, connection analysis correction switch contact cleaning capacitor inspection, and each input/output operation has been checked)
Accessories: none
Main specifications: 4 line inputs, phono (MM), 1 tape system, 1 system, vacuum tube: 12AX7 x 1, 12 AU7 x 5, 6 x 4 x 1 ※ not a mounted vacuum tube W430/H90/D250mm 8 kg