Extra Low End | Vigorous | Fundamental
B-21 is a multi-purpose passive bass-reflex subwoofer with high power SE AUDIOTECHNIK 21″ woofer.
Extremely flat frequency response extends down to 25 Hz.
Smart design ensures easy handling and operation in various applications, including cardioid subwoofer stacks
Aerodynamic port design reduces distortion and airflow noise. The unique asymmetric shape reduces port noise drastically by (-35 dB).
Sockets at front grill
Convenient multiple Neutrik speakON® sockets in front* and back allows for easy set up ideal for live performances.
The so called “octopus feet” are made from some flexible rubber/plastic material, which provides good slip resistance.
Cardioid subwoofer setups
Due to the intelligent stacking design and the front* and rear sockets, it is possible to operate our B-Line subwoofers as a cardioid setup without any problems.
Thông số kỹ thuật
||Bass-Reflex, Subwoofer, passive
||1x 21" SE Audiotechnik woofer (5" Voice Coil), neodymium magnet, paper cone
|Low frequency SPL Limit (-3dB):
|Sensitivity SPL *:
|Max SPL (@1m) **:
||142 dB peak
|Power rating (RMS / Program / Peak ***):
||1000 W / 2000 W / 6000 W
||2x SpeakON® NL4 IN/LINK in the front grille, 2x SpeakON® NL4 IN/LINK in the back
||15 mm plywood, black or white polyurea coating
||585 x 672 x 829 mm