The versatility of the M360 Classic Grand marimba allows the percussionist to perform in any environment. The M300 is meticulously crafted to produce 4.3 octaves in a A2-C7 note range. Wide graduated Kelon® bars, a Musser exclusive, deliver superb tone that is highly resistant to changes in temperature and humidity. The marimba produces a rich and mellow sound while supported on the wood concert frame. The Classic Grand features gold finished, arched and mitered resonators.Classic Grand Kelon marimba, 4.3 octave, dual resonator track positioning, distortion-free bar suspension system, with mallets, shallow drop cover. Available with concert frame as M300, Moto-cart frame as M360 or All Terrain Frame as M7360. The concert frame is Black plexatone with gold powder coated resonators that are arched and mitered, while the M360 has a motor cart frame that is 2" square steel in black with silver powder-coated resonators that are straight in shape. The M7360 features a heavy duty frame and 8" tires.