Audio Focus
S21a - Active Subwoofer
S21a - Active Subwoofer
පිකප් ලබා ගැනීමේ හැකියාව පූරණය කළ නොහැකි විය
S 21a is a compact, high-performance self-powered touring subwoofer, designed to complement our FR-X, ARES 8 and ARES 12 series in sound reinforcement applications scaling to full stadium shows.
S 21a houses a long excursion 21″ neodymium driver and combines front diffusion, bass reflex, and transmission line design for maximum efficiency and outstanding SPL.
Rental companies favor S 21a as an alternative to industry-standard 2×18” subs, saving half the truck space and around 40% of the weight. The subwoofer can be deployed standalone, stacked or flown, making it a versatile, high-earning hire stock staple.
An advanced AUDIOFOCUS SCiO Class D amplifier module with integral DSP and versatile presets allows S 21a to be quickly deployed in any configuration, including cardioid and end-fire.
S 21a is built with pride in Belgium and coated in tough, weather-resistant polyurea to safeguard your investment. The cabinet front is protected by a rigid metal grill, backed by acoustically transparent foam.
Technical specifications
| Description | High-power self-powered subwoofer |
| Transducers | LF: 1 x 21″ |
| Frequency range (-6dB) | 28Hz-100Hz |
| SPL peak (1) | 139 dB |
| Processing | Dedicated AUDIOFOCUS SCiO omni and cardioid presets |
| Rigging | Pole socket |
| Audio Connectors | IN: 1×3-point XLR LINK: 1×3-point XLR |
| Network connectors | 1 x etherCON for control |
| Power Connectors | IN: 1×3-point powerCON TRUE1 TOP LINK: 1×3-point powerCON TRUE1 TOP |
| Dimensions (H x W x D) | 590 x 750 x 655 mm 23.22 x 29.52 x 25.78 inches |
| Weight | 60kg / 132.27lbs |
| Finish | Highly resistant polyurea coating
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| Cabinet | High grade birch plywood |
බෙදාගන්න
