II-9
3. Action Regulation
The following adjustments also differ from adjustments for a conventional acoustic piano.
Hybrid Models vs. Acoustic Pianos: Differences in Regulation Standards
1. Silent UP: LET-OFF See “SHANK STOPPER Adjustment” (p. II-2)
2. Disklavier Pedal Adjustment See “Pedal Measurement” (p. II-15, 16)
3. MPX70 Spoon Bending 15 mm / Slightly earlier position will provide better playback (especially
for pianissimo)
4. GranTouch
• GT1/GT2 Striking Distance: 43.5 mm
• GT10 Let-off: 2.5 mm
Hammer stop: 11 mm
White-key height: 58 mm
Striking distance: 40 mm
• GT15/20
Regulation Values
Let-off: 1mm
Hammer Stop: 8mm
White-key height: 58 mm above keybed level (same as GT10)
Striking distance: 34 mm
40 mm
58 mm
• Let-off
• Hammer stop
• Striking distance
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