The Performance II is a two-ply head manufactured with Aquarian's Vacuum Molded Process which eliminates air bubbles and wrinkles between the two plies.
These heads are sealed at the edges to control any over-ring and focus on low frequencies. They are designed for "loose" tuning to deliver that low, fat, punchy tom sound. Remember that big, fat, low tom sound you heard on the classic rock and roll records? The sound that you could never get on your own? Now you can get that low-controlled sound.
The small Power Dot adds durability. Great head to use as an upgrade on low-priced kits. Adds focused Power!