This is the first air tight booster transformer to be introduced at Hi-Fido. The switch on the front panel makes it possible to replace the input impedance with the 3 input systems without replacement. There are some abrasions on the top surface (Murakoshi Yoichi)
Maintenance information: 2023.6.11 sound output confirmed
Accessories: original box
Main specifications: 3 input systems 2 ohms, 40 ohms, bypass switching W240 x H70 x D180 mm 2.8 kg