Specifications of the Ravenscroft Model 220

#1 bass string length     1,677 mm (66")
Weight     385 kg (849 lbs)
Length     220 cm (7' 3")
Height     104 cm (3' 5")
Width     154 cm (5' 1")
Rim     65mm thick, 37ply alternating beech mahogany cross laminated construction
Bracing     3ply solid beech beams with horizontally laminated beech belly rail
Action     RENNER -CAD optimized, with ± .1 grams accuracy in weigh-off
Keys/Keyframe     Kluge keys and keyframe
Keytop material     Naturals: Tharan from Kluge - Ivory and multiple options available
Sharps: Solid ebony standard - multiple options available
Soundboard     Italian Fiemme Spruce or AAA select Sitka Spruce - other options available
Ribbing     Hand-selected eastern Canadian spruce
Pinblock     Bolduc 5ply quarter-sawn maple
Tuning pins     Diamond pins from Klinke of Germany
Bass Strings     Ravenscroft specific design
Plain wire     Mapes International Gold
Bridges     Ravenscroft specific design - vertically laminated body of ebony, hard rock maple and mahogany with select hardwood cap
Bridge Pins     Titanium
Hitch Pins     Titanium
Duplex scaling     Multiple rear duplex scaling from note 49 to 88
Lyre     Patented box/frame construction for maximum structural integrity
Trapwork     All steel construction for maximum performance and structural integrity
Keybed     40mm thick, 3ply solid select white spruce with steel reinforcement bar
Music desk     Patented 4-position music desk
Lid prop     3-position
Casters     German manufactured, solid brass, locking concert casters with hard rubber outer layer - numerous options available
Pedals     Sustain, full sostenuto, soft (una corda)
Finish     German hand finished polyester or numerous options available
Fallboard     Soft fall, hydraulic controlled closure system