4 Channel Filter Sort Filters In Stock Availability In Stock Price $100-$500 (2) RMS Power 200-500 (2) Peak Power 500-1000 (2) Amplifier Class Class D (1) Stable to (Ohm) 4 Ohm (1) Channels 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-A400.4 Car Stereo Alloy Amp 4 Channel Fulll Range Speaker or... $144.99 Harmony Audio HA-A400.4 Car Stereo Alloy Amp 4 Channel 800W Full Range... $109.95