Orion Cobalt CBA4500.1D Monoblock 1-Channel Class D Amplifier for Car Subwoofer, 4500W, 2/4 Ohm Stable, Adjustable Low Pass & Subsonic Filter with Bass Boost, MOSFET Power Supply, Bass Knob Included

Orion Cobalt CBA4500.1D Monoblock 1-Channel Class D Amplifier for Car Subwoofer, 4500W, 2/4 Ohm Stable, Adjustable Low Pass & Subsonic Filter with Bass Boost, MOSFET Power Supply, Bass Knob Included

Orion Cobalt Series CBA2000.4 High Efficiency 4-Channel Class A/B Amplifier for Car Audio Stereo - 2000W High Output, 2/4 Ohm Stable, Adjustable Low/High Pass, Bass Boost, MOSFET Power Supply

ORION Cobalt CM654 High Efficiency 6.5" Mid-Range Bullet Loudspeakers, 1000W Max Power, 250W RMS, 4 Ohm, 1.5" Voice Coil - Pro Car Audio Stereo, Midrange Speakers (Pair)