The Arcus DS 901 is an active subwoofer designed for delivering low-frequency sound. Featuring a bass reflex design, it is equipped with a 180mm Tonsil GDN 20/100/3 driver with a power rating of 100W and an impedance of 4 Ohms. This subwoofer outputs a continuous power of 80W and offers an impressive frequency response range from 25 Hz to 150 Hz, allowing for detailed reproduction of bass frequencies. The transition range is adjustable from 50 Hz to 150 Hz, providing flexibility for different acoustic environments. The phase can be set to either 0° or 180°, allowing for alignment with other speakers in a home theater system. The subwoofer is suitable for room sizes up to 40 m² and has dimensions of 252mm in width, 485mm in height, and 358mm in depth, weighing 12.4 kg. Its design caters specifically to audiophiles seeking deep bass performance in their setups.