Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low View: 16 32 All Roswell R1 900.6 6 Channel 1800 Watt Digital Marine Amplifier $809.00 Add to cart Roswell R1 650.4 1200 Watt 4-Channel Marine Amplifier $629.00 Add to cart Roswell R1 550.2 1100 Watt 2 Channel Digital Marine Amplifier $446.00 Add to cart Roswell C920-1831SD R1 Mono-Block Marine Amplifier $584.00 Add to cart