Alpine MRP-M450

• Power: 220 watts RMS x 1 at 4 ohms
• Demensions: 9-3/4"W x 2-3/8"H x 9-9/16"D
• Misc.: variable low-pass filter

JL Audio 500/1

• Power: 500 W RMS @ 1.5 ohm - 4 ohm (11V-14.5V)
• Demensions: 13.40 in. x 9.25 in. x 2.36 in.
• Misc.: High-Damping Class D Circuit with discrete control circuitry