Ultimate Home Theater Subwoofer with Profigenes. The SB21 is equipped with a 21" long excursion woofer. The enormous dispersion area enables a brute dynamic, which is unique in combination with the small depth of only 40 cm. Of course, this subwoofer is also characterized by a high efficiency of 99dB (1w/1m).

Left view of the SUB21 subwoofer from the MAG Audio Theatron Performance Series

From stadium concerts to large-venue cinemas, Theatron Performance subwoofers deliver the ultimate in dynamic and level performance. Designed specifically for low-frequency effects, these home theater subwoofers use glass-fibre reinforced cone materials and a ribbed shape with high-temperature sandwich voice coils.
This maintains rigidity and reliability while keeping weight low, resulting in superior sensitivity, dynamic range and power handling.

The incredibly slim Theatron Performance subwoofers are designed to save space in your home theater. A robust, professional-quality enclosure prevents unwanted resonance and ensures clear, powerful reproduction of low frequencies.