I need an amp but don't know what kind I need
I got a subwoofer Dual XOBP12D http://www.dualav.com/carsubs/xobp12d.html
# Specifications: Max power handling: 1100 watts
# RMS power handling: 600 watts
# Sensitivity: 89dB
# Frequency Response: 25-200Hz
# Impedance: 4 Ohms
# Height: 14.4"...