Designed to maximize harmonic content and richness in every note, the Sonic 1 also dramatically improves the restringing process with the QuickString Mounting System. The entire line of ResoMax bridges and tailpieces are made from our proprietary lightweight high-strength ResoMax alloy, that leaves each note dripping in tone and harmonics. Exclusive to the ResoMax System, the patented Auto-Lock™ locking feature magnetically secures your bridge and tailpiece at all times without tools to use or lose.