The Hertz DBA 201 active subwoofer delivers a powerful peak performance of 440 watts in a compact housing with dimensions of 29.1 x 31.6 x 26.4 cm. Featuring an 8-inch (20 cm) woofer with a robust magnetic structure and two passive radiators, this subwoofer offers precise bass control and maximum output power. The enclosure, made from durable MDF material, has been optimized using FEM simulation to ensure superior acoustic performance and reliability. The integrated low-pass filter with 24 dB/octave provides an adjustable cutoff frequency from 50 to 150 Hz for seamless integration into your speaker system. Additional control features include adjustable bass boost (0-6 dB at 45 Hz), phase inversion (0-180 degrees), and a subsonic filter (15 Hz at 24 dB/octave) to protect against excessive cone excursion and amplifier overheating. The sensitivity control allows for optimal system output level management while preventing clipping. The automatic audio-sense circuit enables power-on functionality and standby mode transition with a manual override option when external trigger cables are available. The included HRC 01 remote control module for bass adjustment offers convenient level adjustment from -15 dB to 0 dB. Designed for both standalone and built-in installation, this black subwoofer delivers 220 watts RMS power with precise bass reproduction, suitable for automotive audio systems.