Maintained! Vacuum tube pre-main amplifier from Spark China. The mild, easy-to-hear sound quality typical of vacuum tubes has dense sound quality not found in transistors, and is characterized by powerful low frequencies. The exterior is dull and scratched. Serial 01050285 (Makino Yoshitaka)
Maintenance information: 2022.12.21 Maintained (main volume replacement left channel first stage tube replacement vacuum tube pin cleaning RCA jack oxidation → polishing cleaning switch check bias and output sound check interior and exterior cleaning.)
Accessories: no accessories
Main specifications: tube type pre-main amplifier EL34 PP 40W x 2 (ultra linear connection) using vacuum tube EL34 x 4 12 AU7 x 2 12 AX7 x 1 W320 x H190 x D400 mm 25 kg