|Transducers||LF : 1 x 21″|
|SPL peak / 1m (measured)||139 dB|
|Weight||58,8kg / 129.63lbs|
|Rigging||M8 threaded insert|
S 21i is a compact, high-performance passive subwoofer for fixed installations, designed to complement our FR-X, ARES 8 and ARES 12 series in theatres, houses of worship, live music venues, stadiums, and other sound reinforcement applications.
S 21i houses a long excursion 21″ neodymium driver and combines front diffusion, bass reflex and transmission line design for maximum efficiency and outstanding SPL.
Deployed standalone, stacked, or flown, S 21i adapts to mirror the needs of the venue and offers huge space and weight savings compared to industry-standard 2×18” subs.
S 21i 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.
S 21i can be quickly deployed in any configuration, including cardioid and end-fire, when used with AUDIOFOCUS A Series amplifiers. Armonia presets are also available for Powersoft amplifiers.
- Powerful bass-reflex T-line design
- Optimized for installation
- Lightweight and portable
- Threaded inserts
|Transducers||LF: 1 x 21″|
|Frequency range (-6dB)||28Hz-100Hz|
|SPL peak (1)||139 dB|
|Processing||Dedicated AUDIOFOCUS SCiO and Armonia/Powersoft omni and cardioid presets|
|Rigging||M8 threated insert|
|Connectors||2 × 4-point speakON|
|Dimensions (H x W x D)||590 x 750 x 655 mm|
23.22 x 29.52 x 25.78 inches
|Weight||58.8kg / 129.63lbs|
|Finish||Highly resistant polyurea coating
|Cabinet||High grade birch plywood|
(1) Peak level measured at 1 m under free field conditions using pink noise with crest factor 5
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AUDIOFOCUS has been creating professional touring + installation loudspeakers for 20+ years. 100% made in Belgium – supported worldwide.
Rue du Polissou, 17 • B-5590 Achêne (Belgium)
Tel. : +32 (0) 83 21 80 54
Email : firstname.lastname@example.org