
An extremely rigid yet lightweight cone is vital to prevent cone failure at high sound pressure levels. Pioneer’s IMPP Composite Cones meet this need perfectly. CAE (computer-aided engineering) has been applied to create a surface spoke design that ensures high durability and rigidity of the cone.
A surface containing mica properly maintains the cone’s superior rigidity and internal loss. The back makes excellent use of light, water-resistant material.
Various materials were carefully combined to develop a diaphragm of extra lightness and rigidity to reproduce sound clearly with outstanding responsiveness, sensitivity and a suitable degree of internal loss.