Product Specifications
8” Quad Stack Composite Cone Subwoofer
1000 Watts Powers (P.M.P.O)
500 Watts Power (R.M.S)
Frequency Response: 35~1.200Hz
Sensitivity: 85dB
2.5" 4-Layer Kapton Voice Coil BASV
Powdered Black Paint Aluminum Basket
Silver Push Spring Loaded Terminals
Diameter: 8-3/4" (222mm)
Mounting Depth: 5-7/8 (148mm)
Impedance: 2 x 4 Ohms 
150 Oz Magnet