The 4G Wedge mouthpiece is a similar size to a Bach 4G but with the Wedge rim design, which provides significant improvements in comfort, flexibility, endurance, range and sound quality compared to a traditional rim. This mouthpiece comes in a silver plate finish.
The Wedge mouthpiece differs from a traditional mouthpiece in several subtle but important ways.
The parts of the rim touching the middle of the upper and lower lip (at 12 o'clock and 6 o'clock) are the same width as a conventional rim, or slightly wider.
The parts of the rim touching the corners of the embouchure (at 3 o'clock and 9 'clock) slope away from the centre of the mouthpiece. This shifts the high point of the lateral rim toward the inside, and makes the sides narrower than the upper and lower parts of the rim. The combination of rim contours produces a slightly oval shape in the rim.