Introducing BEHN's latest Innovation in clarinet barrel design: the Swap-A-Bore barrel is an industry first.  This barrel has two separate components 1. the body 2. the bore.  Each bore slug is made out of brass - this heavier material maintains a very high level of dimensional consistency and tonal power.  And the slugs are easily swapped from small to medium to large, to extra large.  With the Swap-A-Bore barrel, you can outfit your setup with four different options for any occasion.  Whether your daily reed is running a tad soft or the acoustics of the concert venue are particularly dry, you've now got instant options at your fingertips to curate your sound, your feel, and your projection without interfering with your primary setup.  By simply swapping to a small bore when your reed is soft, or a large bore when added freedom and projection are desired, we've got you covered - but the great thing is that by swapping a bore, you only get good things, no negatives.  Whereas changing a mouthpiece or a reed might offer an increased risk-reward scenario that would be undesirable at your performance venue.
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So if today's situation calls for a darker sound, go with the Small bore, if you desire a bit more brilliance and projection, go with the Extra Large bore, and our standard Medium and Large options are great all purpose offerings for your every day needs.  We've got a nuanced and highly effective way for you to customize your playing experience, your sound, and your resonance at your fingertips.  It just takes seconds to remove one bore and insert another...
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The BEHN Swap-A-Bore's unique Brass Bore-Slug system allows you to seamlessly swap out different Slugs to adjust your barrel's bore size on the fly. Crafted from precision machined brass, each Slug enhances mass and resonance, allowing you to effortlessly fill any room with remarkable resonance. Elevate your sound and your experience today!
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Note:  Also for the Saxophone doublers you will find the Extra Large size Slug incredibly comfortable. Switching back and forth from sax to clarinet will feel like a breeze.