Edwards 502-I Markey Bass Trombone CompleteOur customers have been asking for an Artist Rotor (AR 1) bass trombone for quite some time. After years of development, were happy to announce that the B502 is now ready for purchase. Weve been testing it in the marketplace for over a year. In that time, refinements have been made to our original designs. As we continually strive for perfection, we reserve the right to make changes to the B502 (and all of our horns). Our goal when building the B502