The AMP orange elk diaphragm is the lightest latex of the new AMP diaphragms. This is a single reed that produces high-pitched cow and calf sounds along with producing immature bull sounds.

The AMP black elk diaphragm produces high to medium-pitched cow sounds along with producing raghorn bugles with great volume.

The AMP grey elk diaphragm is a great all-around call with excellent volume. This is a single reed that produces medium to mature cow sounds, along with producing medium to large bull sounds.