A Remo P30316BP unique sound-enhancing underlay zero ring retains the tonal clarity of traditional Ambassador sound, but with unparalleled resonance control. Powerstroke 3 series feature a thin underlay at the outer edge of the head to subtly dampen unwanted overtones. This creates a near-perfect balance of response and tone control that has quickly made Powerstroke 3 one of Remo's most preferred drumhead models.