The use of Yamaha's original Air Seal System is, in part, responsible for the superior quality found in Yamaha drum shells. Select woods are cut into plies, positioned with staggered diagonal seams, and sealed together with evenly distributed air pressure. The resulting shells are perfectly round and of uniform thickness delivering superior tone quality and exceptional durability.<BR><BR><strong>All Birch Shell</strong> In production for over 25 years, Yamaha's world famous Recording Custom series has given their craftsmen a deep understanding of the characteristics of birch. It is with that knowledge that Yamaha has been able to extract a richer sound from these new drums. The shells are manufactured using Yamaha's exclusive Air Seal System. This technique, while enhancing the characteristics of the wood, also ensures that every drum shell is perfectly round, of uniform thickness, and creates a stronger, more durable shell. Producing clear mid-and low-tones with sharp, solid highs, the Absolute Birch is sure to create a new standard for birch shell sound.<BR><BR><strong>Vintage Finish</strong> The Vintage finish is a special synthetic resin finish that is applied by hand on high-quality wind instruments. While enhancing the tone of the birch shell, the Vintage finish also provides a durable, waterproof finish that virtually eliminates the influence of weather and humidity on the drum. Over the course of time, the color of the shell will change to a deeper hue that you will surely love.<BR><BR><strong>Lugs</strong> The unique chrome body lug casings found on the Absolute series are fixed to the drum shell with only a single bolt allowing the drum to vibrate freely. A special nylon insert prevents tension rods from becoming loose during play.<BR><BR><strong>Aluminum Die Cast Hoops</strong> The aluminum die cast hoops give these drums the benefit of accurate tuning that die cast hoops are known for but are much lighter weight than zinc so they do not choke the drum like zinc die cast hoops do. They allow the drum to open up much like a triple-flanged hoop.<BR><BR><strong> Floor Toms Equipped with YESS Mounts</strong> Long found on Yamaha's high-end drum kits, the original YESS (Yamaha Enhanced Sustain System) mounting system is on all Absolute Birch floor toms. This rod clamp system allows attachment of the drum to the tom holder without the need of a hole in the drum shell for the rod to pass through. The YESS clamp is attached to the shell at the nodal point with two bolts so as to allow the shell to vibrate freely without degrading the shell's dynamic range and sustain. The nodal point is the location on a shell with the least amount of vibration allowing for the mount to have minimal affect to the resonance of the shell.
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