Unique Pentagonal Cone Designs offers Superior Rigidity and less distortion
Double Damper Suspension
Dual Stacked Magnets
Optimized for both Small Sealed and Ported Enclosures
Durable Foamed Rubber Surround with Stroke Stabilizers
Gold-plated Binding Posts
4-layer edge-wound voice coil
Aluminum former and four layers of copper wire that's flat instead of the usual, inferior round design. The wire is packed together in a smaller space than would otherwise be needed. More copper means better current handling.