The Vandoren V12 Bass Clarinet Reeds have a thicker heel and are cut on a longer palette with a slightly thicker tip than the Traditional. The longer palette means that more of the reed is vibrating resulting in a deeper richer sound. The thicker tip gives body to the attack and also increases the longevity of the reed.
For strength suggestions compared to other Vandoren reeds please refer to the PDF document above. Vandoren Woodwind-Brass-Strings 1CSS
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Vandoren V12 Bass Clarinet Reeds 2.5 (5 BOX)