Backun Q Series Bass Clarinets set the standard for what bass clarinet playing should be. Designed with an intense focus on exceptional intonation throughout the registers and a beautifully engineered mechanism, this series of professional bass clarinets has no equal. From the triple register mechanism to over- and under-cut tone holes, stunning nickel-silver metal neck and bell and a thoughtfully designed custom Compact Marcus Bonna Case with bass stand straps?