Let´s lock – M4 90 & M4 180 locking machine heads for basses
Postbauer-Heng, Germany (May 26, 2025)
What has long been considered the standard for guitar tuners should not be denied to bassists.
We have given our M4 90 & M4 180 machine heads a new locking design.
Feel the difference: Discover the new Schaller M4 90 & M4 180 locking tuners and get more out of your bass!
- Resume playing: Locking-tuners enable quick restringing on stage, reducing the time it takes to resume playing.
- Thanks to the locking wheel: Insert and secure the string, no need for multiple string winding.
- In tune: Locking-tuners usually stay perfectly tuned even after days. Shorter locked strings, with fewer windings, have less room for string stretching.
Improved performance ensures more fun and a relaxed playing experience during your live gigs.
Screw lug: 90° or 180°
M4 90: screw lugt at a 90° angle to the button
M4 180: screw lug at a 180° angle to the button
Post: splitted or solid
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