MC boost transformer optimized for SPU. The sound creation that is only slightly distorted with a small transformer embodies superb music playback by connecting the SPU. The exterior has deteriorated and wobbly rubber bushings, dullness, dirt, etc. appropriate for the model year (Matsumoto Tsuyoshi)
Maintenance information: 2026.4.1 sound output confirmed
Accessories: none
Main specifications: input impedance 2 ohms to 3 ohms boost ratio 60 times weight 70 g