12 "carbon sandwich cone glued together with a Ribbed surround.
Ideal for SPL applications, but also for music listeners.
Because of the sandwich structure, the membrane is extremely stiff, but thanks to the inner foam layer, it is also ideal for musick.
Number of layers: 3
Overall diameter: 226 mm
Depth: 50 mm
Voice coil opening : 4" - 101 mm
overall diameter : 300mm
inner diameter : 210mm
height : 30mm