KELLY 6.5 AL Crystal Red Trombone Mouthpiece Maple Sticks The 215L design is a

The 215L design is a passive low pass filter with a slope of only 6 dB per octave

Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3

distorted rock 'n' roll tone with incredible sustain

The six-pole piece construction gives the pickup a bright

KELLY 6.5 AL Crystal Red Trombone Mouthpiece Maple Sticks The 215L design is aKELLY 6. 5 AL Crystal Red Trombone Mouthpiece KELLY Small Shank Trombone and Baritone Mouthpieces are made entirely of Lexan material. The 6 1 2AL and 12C cup sizes are patterned after the Bach series. All cup sizes are sampled by our professional staff and are adjusted to produce our final, comfortable, easy blowing mouthpieces. All of our mouthpieces are identical to exacting standards. FEEL the Comfort! *Please Note: Main Photo Represents Color Of