Car Amplifiers 4 Channel 5 Channel Mono - 1 Channel Replacement Parts Filter Sort Filters In Stock 200-500 Harmony Audio Remove All Filters Availability In Stock Price $100-$500 (5) Brand Harmony Audio (5) Alpine (2) Kicker (1) RMS Power 200-500 (5) 500-1000 (4) 1000-2000 (3) Peak Power 500-1000 (5) Amplifier Class Class D (2) Stable to (Ohm) 1 Ohm (1) 4 Ohm (1) Channels 1 (1) 4 (1) Sort SKU: A-Z SKU: Z-A Price: Low to High Price: High to Low Least Popular Most Popular Sort by: SKU Sale Price Popularity Harmony Audio HA-A400.1 Car Stereo Class D Amp Mono 800 Watt Subwoofer... $104.95 (6) Harmony Audio HA-A400.4 Car Stereo Alloy Amp 4 Channel 800W Full Range... $109.95 Harmony Audio HA-A400.4 Car Stereo Alloy Amp 4 Channel Fulll Range Speaker or... $144.99 Harmony Audio HA-A400.1 Car Stereo Class D Amp Mono Subwoofer Amplifier... $139.99 (2) Harmony Audio HA-A400.1 Car Stereo Class D Amp Mono 800 Watt Subwoofer... $209.99