Car Amplifiers 4 Channel 5 Channel Mono - 1 Channel Replacement Parts Filter Sort Filters In Stock Harmony Audio Remove All Filters Availability In Stock Price Under $50 (2) $100-$500 (12) Brand Harmony Audio (14) Alpine (7) Kicker (7) RMS Power 200-500 (5) 500-1000 (4) 1000-2000 (3) Peak Power 500-1000 (5) 1000-2000 (4) 3000-5000 (3) Amplifier Class Class D (5) Stable to (Ohm) 1 Ohm (3) 4 Ohm (1) ? (1) Channels 1 (3) 4 (1) 5 (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-A800.1 Car Stereo Class D Amp Mono 1600 Watt Subwoofer... $149.95 (3) Harmony Audio HA-A1500.1 Car Stereo Class D Amp Mono 3000 Watt Subwoofer... $239.95 (9) 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 (2) Harmony Audio HA-A1500.1 Car Stereo Class D Amp Mono 3000 Watt Subwoofer... $460.99 Harmony Audio HA-A400.1 Car Stereo Class D Amp Mono Subwoofer Amplifier... $139.99 Harmony Audio HA-A800.5 Car Stereo Alloy Series Class D Amp 5 Channel 1600W... $179.95 Harmony Audio HA-BRM Replacement Remote Amp Bass Controller for HA-A400.1,... $23.95 Harmony Audio HA-A1500.1 Car Stereo Class D Amp Mono Subwoofer Amplifier... $274.99 Harmony Audio HA-EASY Replacement RCA to Speaker Line Input Amp Adapter for... $11.95 (1) Harmony Audio HA-A800.1 Car Stereo Class D Amp Mono Subwoofer Amplifier... $209.99 (2) Harmony Audio HA-A400.1 Car Stereo Class D Amp Mono 800 Watt Subwoofer... $209.99 (2) Harmony Audio HA-A800.1 Car Stereo Class D Amp Mono 1600 Watt Subwoofer... $320.99