The Mars series drums offer shallow depth 100% Birch shells complete with the new soniclear bearing edge, which increases the Contact between the Drumhead and shell and allows the head to sit flat on the edge. The soniclear bearing edge produces a stronger and more centered pitch and makes the drums remarkably Easy to tune. "The drum manufacturing community hasn't paid a lot of attention to the importance of bearing edges over the years. Specifically, players have had a difficult time tuning their drums and making them sound good because the Apex of the edge is too far to the outside of the shell and they can't get the Drumhead to sit flat", States Mike Robinson, Director of marketing for khs America. "That frustration, especially for players who are learning The art of tuning their drums, can lead to a lack of enjoyment and less time playing. The soniclear bearing edge solves those issues and enables players to get a great sound even without much tuning experience. This is a truly significant breakthrough that all our customers will benefit from." However, MAPEX didn't stop there. They've taken design innovations found on their premium line of Saturn IV drums and brought them into the mid-range to enhance the performance of this gig-quality series.