A bell including an outside surface, inside surface, lip at the bottom of the bell, sound bow above the lip, waist above the sound bow; above the waist a shoulder having a diameter equal to: 0.55*LD 5%, and crown at the top of the bell above the shoulder; wherein a portion of the inside surface generally adjacent the shoulder has a first end at or near the crown; a second end at or near the waist and a inflection point generally in-between the first and second ends; as the inside surface portion extends away from the first end towards the point of inflection, the portion extends away from the crown more than it extends towards the outside surface; and as the inside surface portion extends towards the second end from the point of inflection, the portion extends towards the outside surface more than it extends away from the crown.

A bell including an outside surface, inside surface, lip at the bottom of the bell, sound bow above the lip, waist above the sound bow; above the waist a shoulder having a diameter equal to: 0.55*LD 5%, and crown at the top of the bell above the shoulder; wherein a portion of the inside surface generally adjacent the shoulder has a first end at or near the crown; a second end at or near the waist and a inflection point generally in-between the first and second ends; as the inside surface portion extends away from the first end towards the point of inflection, the portion extends away from the crown more than it extends towards the outside surface; and as the inside surface portion extends towards the second end from the point of inflection, the portion extends towards the outside surface more than it extends away from the crown.

A bell including an outside surface, inside surface, lip at the bottom of the bell, sound bow above the lip, waist above the sound bow; above the waist a shoulder having a diameter equal to: 0.55*LD 5%, and crown at the top of the bell above the shoulder; wherein a portion of the inside surface generally adjacent the shoulder has a first end at or near the crown; a second end at or near the waist and a inflection point generally in-between the first and second ends; as the inside surface portion extends away from the first end towards the point of inflection, the portion extends away from the crown more than it extends towards the outside surface; and as the inside surface portion extends towards the second end from the point of inflection, the portion extends towards the outside surface more than it extends away from the crown.

A bell including an outside surface, inside surface, lip at the bottom of the bell, sound bow above the lip, waist above the sound bow; above the waist a shoulder having a diameter equal to: 0.55*LD 5%, and crown at the top of the bell above the shoulder; wherein a portion of the inside surface generally adjacent the shoulder has a first end at or near the crown; a second end at or near the waist and a inflection point generally in-between the first and second ends; as the inside surface portion extends away from the first end towards the point of inflection, the portion extends away from the crown more than it extends towards the outside surface; and as the inside surface portion extends towards the second end from the point of inflection, the portion extends towards the outside surface more than it extends away from the crown.