Memphis MB824 8" 2ohm/4ohm Dual Impedance 300/600w

Selectable impedance design 2Ω or 4Ω (Patent pending)
Ultra-light Aluminum voice coil for increased sensitivity and more output
Folded surround for max excursion without sacrificing surface area
Reinforced double stitched rubber surround
Polypropylene dust cap
Woven tinsel leads
2" 4 layer aluminum Dual Impedance voice coil 10"/12"/15", 1.5" on 8"
DVVC Direct Vented Voice Coil Cooling