< p> 1-channel subwoofer amplifier with class D circuit and integrated active crossover< br> < br> Mono amplifier< br> 1 ohm stable< br> Class D technology< br> Variable active crossover and bass boost< br> High-level input with auto-on function & amp dummy load< br> Stable power supply< br> Large terminals< br> Black anodized heatsink with Ground Zero lettering< br> Bass remote control included< br> Triple protection circuit< /p>