Keyboard: 19 1/2" (49.5 cm) (20mm keys)
Treble/Bass: 41 keys/120 buttons (low A)
Registers: 11+Master treble/10 bass
Reeds: 4/5 sets Antonelli finest Handmade reeds
Configuration: LMMH Concert +0 / int. LMMM -15/+15 (A-440Hz)
Tone Chamber: Solid-aged Mahogany Double Tone Chamber (LM)
Amplification: Dynamic Stereo microphones
Weight: 27 lbs (12.3 kg)
Features:
5-ply Mahogany Box construction. Double Tone Chamber (LM) handmade from one-piece of solid, aged mahogany. petosa 100% handmade Walnut keyboard/guides with lucite key tops. petosa's dense felt and leather valve pads. Mahogany reed blocks featuring cedar chambers. Hand-cut genuine calfskin reed valve leather. Exclusive petosa-designed mahogany bass board and cover plate. All-chromed silent petosa bass mechanics.