The PL-Audio B 21 Sub DSP is a high-powered, self-amplified 21-inch subwoofer designed to deliver commanding low-frequency extension with precision and control. Its integrated 3-channel Class D amplifier provides a dedicated 2500 W channel for the sub plus two 800 W outputs for driving complementary tops, enabling compact, efficient system setups. With DSP on board, you can fine-tune performance to the room and programme material, ensuring tight, musical bass from 30 Hz to 90 Hz and peak output in excess of 138 dB.
Engineered for touring and installs alike, the rugged multiplex-wood enclosure features six carrying handles, eight rubber feet for stable stacking, and dual K&M M20 flanges for secure pole-mounting. A 4-ohm design maximises amplifier efficiency, while the robust build keeps weight to a practical 79 kg. Dimensions are 585 x 1005 x 870 mm, offering a substantial acoustic footprint without compromising deployment flexibility.
Ideal for live sound, clubs, theatres and production companies, the B 21 Sub DSP delivers authoritative, controlled sub-bass that underpins modern music with impact and clarity.
Includes
- PL-Audio B 21 Sub DSP Subwoofer
STAGE22.3.100.300