Maintained! A rare Mclntosh tubular premain amplifier. Even with the same Mackin, they are a bit different from transistor amplifiers, and the thick, glossy sound is just like the American sound of the 60s. This is a superb item that you would like to pair with vintage speakers. The exterior is generally good. Serial 49C44 (Yasuhito Koshihama)
Maintenance information: 2024.3.13 maintained (· fuse defect replacement · each switch and selector contact failure repair · 8 100 μF and other defective and deterioration replacements · 2 block capacitors 40 μF x 3 other deterioration replacement · vacuum tube 7591 deterioration replacement · BIAS and AC BAL. readjustment · vacuum tube socket and RCA jack caulking repair
*Other operation checks have been performed (measured at 23 to 36 W SP: 8 ohms with rated output AC100 to 117 V) *2 block capacitors have been replaced with MEPCO products by other companies)
Accessories: none
Main specifications: output 30W x 2 (4/8/16Ω) vacuum tube 7591 x 4, 12AU7 x 2, 12AX7 x 1 RCA3 system Phono (MM) 2 system SP terminal 1 system W407 x H138 x D302 mm 19.5 kg