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GrandTune® – Superior tuning machines

With its cutting edge Velvet-Tec* technology the all new Schaller GrandTune® is the ultimate combination of tasteful design and velvet-smooth feel and touch. Due to its revolutionary conception the GrandTune® offers a precision and longevity second to none. The avoidance of synthetic coatings makes GrandTune® a perfectly resonating entity. With its wear-free architecture GrandTune® is bound to last and shine as long as your precious guitars ever will and far beyond! Experience Velvet-Tec and find out how sound quality, tuning stability and performance define GrandTune® as the Superior Tuning Machine. (*scientific analysis supported by Fraunhofer Institutes)

About the ball bearings

Our GrandTune Classic deluxe string rollers feature special ball bearings for accurate, low-friction and noiseless performance. With the ball bearings diameter of 10.0 mm and the string rollers diameter of 9.8 mm they guarantee the shafts to run free and unobstructed inside the head stock bore. They rather help avoiding a common problem with classical guitar tuners and the contact of the rollers inside the head stock. The Deluxe string rollers ball bearings effectively cure increased friction and resistance between shaft and wood often resulting in crackling and creaking noises whenever the tuners are turned.

Details

• 1:18 gear ratio supports precise and velvet- smooth tuning.
• Hyper- accurate gear joints and fittings without polymer coatings present perfect stick-slip-performance and zero wear and slackening.
• GrandTune® features permanently locked, sealed and covered screw joints for zero degradation and maintenance-free performance.
• New formula bell brass gearwheels guarantee velvet-smooth feel and touch.
• Standard dimensions for easy installation.
• Countersunk screw holes for solid fit and perfect sound coupling.
• GrandTune® the most advanced and musical machine head ever built!
• Permanently locked, sealed and covered screw joints for zero degradation and maintenance-free performance.
• High-gloss fine beige or deep black string rollers.
• Optional Deluxe string rollers featuring state of the art ball bearings to prevent binding and improve performance.
• All GrandTune® Classic string rollers featuring brass-lined string holes.

Technical specification

• Gear ratio 1:18
• weight 79g (button snakewood), 80g (Galalith oval), 83g (Ebony square), 85g (Perloid white square, Perloid grey square/ellipse, Acrylic black ellipse) per base plate
• 8 mounting screws