Vented cast aluminum chassis for optimum strength and low compression
Geometrically reinforced aluminum cone for optimum piston operation
and reduced break-up
Soft low damping rubber surround for improved transient response
Non-conducting fibre glass voice coil former for minimum damping
Extended copper sleeve on pole piece for low inductance and low distortion
CCAW voice coil for reduced moving mass
Long life silver lead wires
Vented pole piece for reduced compression