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Based on price data from 1 merchant for "Schaller BM Light 4L CH". Prices shown reflect NEW condition. Tracking began May 1, 2026.
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Description
The BM Light 4L CH Bass Tuning Machines by Schaller
The Schaller BM Light 4L CH is a premium set of bass tuning machines designed to significantly reduce headstock weight while maintaining excellent tuning stability. Built in Germany, it uses a combination of carbon, aluminium, and high-quality metal components to achieve roughly 50% weight reduction compared to traditional tuners. This makes it especially popular for players looking to eliminate neck dive and improve overall instrument balance. Despite its lightweight construction, it offers smooth, precise tuning thanks to a high gear ratio and robust engineering. The semi-open design keeps a classic aesthetic while improving efficiency and reducing mass. It’s widely used as a direct upgrade or replacement for standard Fender-style bass tuners.
Specs
• Type: Bass tuning machine set (4-in-line, left configuration)
• Made in Germany
• Finish: Chrome
• Lightweight construction using carbon, aluminium, and metal components
• Approx. 50% lighter than conventional bass tuners
• Semi-open gear design
• M4 Light tuning buttons
• Gear ratio: 1:22 for precise tuning
• Smooth and stable tuning performance
• Designed to reduce neck dive and improve balance
• Bore (peg hole) diameter: 17 mm
• Shaft length: ~17.6 mm
• Mounting: Pins and locking nut system
• Approx. 69–71 g per tuner (including bushing)
• 4 × tuning machines (4L configuration)
• Bushings and washers
• Mounting hardware
Videos
Jim Deecken
Bass Tuner Upgrade, Installation of Schaller BML Light Bass Tuners
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