EdgeCraft (I.R.R.)
EdgeCraft I.R.R. is a re-inforcement ring cut during the lathing process that is an integral part of the shell, not a glue-in ring. The benefit of I.R.R. is the strength and rigidity gained where it is needed, at the outside edges of the shell. This feature allows for the overall body of the shell to be thinner which produces a lower fundamental pitch and maximum resonance.
Price: $30.00