Koreeda's control amplifier published in Kingdom of Tubes Vol.19. A product that omits tone control and narrows down the functions. The volume can be adjusted in detail using a large 41-contact P type attenuator made by Tokyo Hikone. The sound is clear and clear with a sense of speed. The exterior is dull and some lettering has disappeared (Tamura Eiji)
Maintenance information: 2023.8.27 Operation confirmed (bubble noise comes out when VOL is turned, but the specifications are due to the characteristics of Tokyo Hikone attenuators)
Accessories: power cable
Main Specifications: 4 Inputs, 2 Outputs, W360 x H140 x D245mm, Weight 6.9 kg