You can select from pegs with real wood heads for $235, or pegs with a composite head for $180. The composite looks a lot like ebony. The wood pegs come in 2 styles: swiss or hill.
The Perfection Peg is a deceptively simple mechanism with a size, shape and overall appearance closely matching a conventional ebony peg. The patented design enables easy, accurate and stable tuning of the cello without the use of tailpiece-mounted string adjusters. In concept,this is equivalent to mechanisms already in use on the guitar and string bass.
How Do They Work?
Perfection pegs employ gears—small, precise, incredibly strong helical gears. Rather than whole-peg rotation and wood-on-wood friction, operation of the internally housed gearing brings each string to its desired tension, and holds it securely in place.
Stated a bit more technically, a player, rotating the head of the peg, is actually turning the main gear (called the sun gear). The sun gear drives smaller gears (called planet gears), which “orbit” between the sun gear and a toothed outer housing (called a ring gear). As the orbiting planet gears are spun about the sun gear, they force the rotation of an elongated housing (called a carrier), which serves as the shaft portion of the peg. The gears are also designed so that the shaft rotates once for every four turns of the peg’s head (called a four-to-one gear reduction). That allows the Perfection Peg to also function as a fine tuner.
What are the main benefits of Perfection Pegs?