A rotating shell introduced in the 1992 May issue of Radio Technology. Bearings are mounted on the base of an Audio-Technica shell. It fully demonstrates the performance of the cartridge with effects such as improving the regeneration ability of the inner periphery. Freed from the inside force, we are working to expand the sense of sound field and improve the granularity of the sound (Murakoshi Yoichi)
Maintenance information: 2022.11.19 sound output confirmed
Accessories: none
Main specifications: aluminum self-weight 19g
※It is cheap because it is in poor condition. A magnesium-alloy Q-dump shell made by Audio-Technica. It is a model with anti-vibration material added to the top plate, head cylinder base, and finger rest. The exterior shows smoke resistance deterioration such as corrosion (Asaine Tomonori)
Accessories: none
Main specifications: magnesium alloy, own weight 9.3 g
Head shell from unknown manufacturer. Small hole type screw hole for easy overhang adjustment. There are stains all over (Murakoshi Yoichi)
Maintenance information: 2023.11.24 sound confirmed
Accessories: Audio-Technica original box
Main specifications: dead weight 12g
An “oil dump head shell” that suppresses unnecessary vibrations in the cartridge by oil braking and improves tracing ability. There are no documents and the details are unknown. It has a structure where the front half of the shell part tilts left and right. The material is an alloy similar to aluminum like Audio-Technica's premium models, and its own weight is as heavy as 15g. It is full of charm, including the included genuine lead wire (Murakoshi Yoichi)
Maintenance Information: 2023.4.23 Confirmation Confirmed
Accessories: none
Main specifications: own weight 15g
Jewel tone headshell that looks just like the Audio-Technica MG-10 The 4-position mounting screw hole allows for overhang adjustment. Less coloring, corresponds to a wide range of music genres (Yoichi Murakoshi)
Accessories: none
Main specifications: own weight 9.7g
OEM for Technica's shell D-7 for lightweight cartridges The logo is not a Technica mark, but a DAC. (Miura Kimiya)
Maintenance information: 2022.3.1 continuity confirmed
Accessories: No accessories
Main specifications: Impact molded lightweight shell self weight 9g