Fully functional. Comes with bass knob but no cable The ORION CBA2000.1D COBALT 2000 WATTS CLASS-D MONOBLOCK AMPLIFIER is a powerful car subwoofer amp designed by the reputable brand Orion. With a single channel output and a maximum power output of 2000 watts, this amplifier is capable of delivering high-quality sound performance for car audio systems. This monoblock amplifier is a popular choice among car audio enthusiasts looking to enhance their vehicle's audio experience with deep and impactful bass.
eBay