Pearl’s Reference Pure series is engineered for drummers who demand the ultimate in sound quality and responsiveness. Every detail of these drums is crafted to enhance resonance, projection, and tonal clarity. The EvenPly shells are 30% thinner than standard Pearl shells, allowing them to vibrate freely and respond effortlessly to the lightest touch. This exceptional sensitivity ensures that even the subtlest nuances of your playing are beautifully projected. Complementing this design, the aluminum OptiMount suspension system secures the toms to the tension rods, eliminating metal-to-metal contact for maximum resonance. Additionally, STL Swivel lugs minimize shell contact, further enhancing sustain, while the floor tom is equipped with Air Suspension rubber feet to prevent energy loss by isolating it from the floor. The bass drum shells in the Reference Pure series are meticulously constructed with six inner plies of rich, warm Mahogany and two outer plies of bright, articulate Maple. This combination delivers deep, punchy low-end frequencies with remarkable clarity. A fully rounded bearing edge optimizes kinetic energy transfer from the drumhead to the shell, producing a powerful, resonant bass response. With cutting-edge design and premium craftsmanship, the Pearl Reference Pure series offers an unparalleled drumming experience—ideal for both studio recording and live performance. 22'' x 18'' Bass Drum - 10mm 8 Ply Maple and Mahogany, Fully Rounded Edge 10'' x 8'' Quick Tom - 7.5mm 6 Ply Maple and Birch, Rounded 45 Degree Edge 12'' x 9'' Quick Tom - 7.5mm 6 Ply Maple, Rounded 45 Degree Edge 14'' x 14'' Floor Tom - 10mm 8 Ply Maple and Mahogany, Full Rounded Edge Individual Shell Spec for Each Drum Super High Gloss Lacquer Finish (including Sparkles) Remo Clear Emperor Tom Heads, Powerstroke3 Bass Heads Aluminium OptiMount Suspension Tom Mounts (Tom Arms Sold Separately) MasterCast Die-Cast Hoops BRL Bridge Lugs with Swivel Function