* There is a strong gully in the volume, but the current situation is. A Firestone Audio control amplifier equipped with a vacuum tube even if it is small, and has a separate power supply structure. The input is switched by 2 systems with the front toggle switch (Itsuro Mizushima)
Maintenance information: 2022.8.5 Sound output confirmed
Accessories: power cord, connection cord
Main specifications: Vacuum tube using input RCA2 system Sylvanian 2C51/5670 W82 × H110 × D145 mm 1 kg