Some are pretty insistent that heavy cones should be used in basshorns. Others think that lighter cones sound "tighter". I've always considered moving mass as just one of the variables, like rear chamber volume or throat area. Heavy cones have lower resonance but reducing rear chamber volume raises resonance, so it's a balancing act.To say light cones are better or heavy cones are better is like saying stiffer springs are better for a car. It depends on what size car they go in, and what type of ride is desired. That's my opinion. What are your thoughts?