The BASSON 77 is using a 10″ woofer (25 cm) in paper cone with coating.
The frequency response can be changed from 25 Hz to 30…120 Hz.
The phase can be changed from 0 to 180°.
The subwoofer is able to detect the signal (button ON or AUTO)
2 entries : LINE INPUT or LFE INPUT
2 buttons for the level : HI/LOW LEVEL or LFE LEVEL
The amplifier is a CLASS D amplifier, whose max power is 600 W.
Dimensions (cm) : 30 (L) x 36 (H) (41 with feet) x 41.5 (D)
Bass reflex with 2 ports on the front.