

The Nature of Sound.
Deep in the heart of the dark timber, there is an audible marvel that few are lucky enough to experience. It is almost impossible to describe the mystical harmonic symphony that occurs in the golden days of September. The “hair stand up on your neck” kind of sound that brings you back to the moment you heard your first real bugle. It is this rich acoustic phenomenon that led to the creation of the Cambium Bugle Tube. Crafted from premium natural tonewood for acoustic quality, realism, depth, and balanced sound resonance, we believe this to be the finest tonal elk calling instrument available. Find your voice. Live Riven.
"THE RELATIONSHIP BETWEEN A CALLER AND THEIR TUBE IS SO MUCH MORE THAN JUST A NECESSITY. WE BELIEVE THIS TO BE THE FINEST ELK INSTRUMENT EVER MADE. IT IS TIMELESS, METICULOUSLY CRAFTED AND HARBORS UNBELIEVABLE ACOUSTIC PROPERTIES UNLIKE ANY OTHER TUBE. THE CAMBIUM WILL SURELY ELEVATE YOUR CALLING EXPERIENCE, COMPLIMENT YOUR VOCALIZATIONS AND IS SOMETHING YOU WILL BE PROUD TO PASS ON TO FUTURE GENERATIONS."
Beau Brooks--World Elk Calling Champion
Tone wood is a natural material that responds to environmental stimuli like pressure, temperature, humidity, direct sunlight, dirt, and bacteria. We recommend that you follow these tips:
Riven Cambium Elk Bugle Tube