In a recent bout of improvements, Theo has introduced the GAIA 4 into the mix.  This new model sounds even fuller and more 'alive' than the previous model!

The GAIA 4's new design yields an unprecedented level of expressiveness and creative potential in a tenor mouthpiece with a traditional sound. It features an updated version of their proprietary Shark-Gill Baffle™ and their newly designed Large-Stadium Chamber™, a technologically advanced adaptation of a traditional large chamber. Once musicians spend some time on it, they will discover a dynamic range and flexibility not found in any other tenor mouthpiece.