MAPEX SATURN EVOLUTION SE504XMPT BATTERY. AZURE BURST Saturn Evolution 2020 Series Composed of: * 20 "x16" bass drum. No mount * 10 "x 7" Tom * 12 "x 8" Tom * 14 "x14" stand * TH800 x 2 single tom holder. Hybrid maple and walnut shells produce a strong attack and rich tone with a good projection, both live and in studios. "HALO" system on toms. The revolutionary new "Halo" system from MAPEX Drums "Halo" unlocks total resonance freedom. Featuring a unique "below the acorn line" lateral suspension system, this revolutionary new mount allows the carsco the freedom to have a pure, open tone. This is done with minimal stiffness generally associated with under-rim mounting systems. 90 degree base tom legs eliminate energy transfer to the floor while maintaining maximum resonance on the drum. * Toms and bass drums have different combinations of vents. These vents are placed in the Nodal line with the acorns, so as not to affect the resonance of the hulls. Mapex's new nodal line vents scheme gives the Saturn Renew series a superior feel and just the right amount of resonance. Whether tuned for jazz and fusion or for rock-n-roll, the composition of the maple and walnut shell, along with SONIClear ™ edges, results in clear, centered toms and a kick drum that sounds bigger than what. should.