It is the SPU “number one” newly created with the goal of reproducing the thickness and thickness of the sound of old SPUs of yesteryear. Among them, the #1S is a cartridge that uses a round needle, and a wide range is also added. Serial 312009 (Kanai Hidetsugu)
Maintenance information: 2024.4.23 sound output confirmed
Accessories: original box, instruction manual, needle cover
Main specifications: round needle output voltage 0.18 mV internal impedance 2 ohms needle pressure range 3.0 to 5.0 g dead weight 30 g