How do different types of drum hoops effect the drum sound? Counterhoops mostly effect the overtones coming from the drumhead, but many little differences can add up to a bigger difference in the overall sound of a drum. Listen here to two different Triple Flange hoops: 2.3mm and a 3.0mm hoop. Hear the difference on their own? Most popular hoop types: Single-flanged: most open sound, longest sustain Triple-flanged: open sound, long sustain Die-cast: focused sound, moderate sustain Wood: focused