The 21W/8555-10 is a mechanically upgraded version of 21W/8555-00, its major change is the aluminium chassis, that maintains shape under high SPL. The patented Symmetric Drive (SD-1) concept with copper in the magnet system and carbon fibre paper cone and low loss linear suspension continues to be the key features that make the 21W/8555-10 one of the best 8” woofers available.
Patented Symmetrical Drive Motor Design SD-1
Low-Loss linear suspension
Low Damping SBR Rubber Surround
Die Cast Alu. Chassis
Air Dried Paper/Carbon Fibre Cone
42mm Voice Coil