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

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

The AMP gray 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...