A-Series Subwoofers
A21s
single 21" subwoofer
The A21s is a single 21” bass reflex sub-bass loudspeaker. Designed for use in nightclubs, mobile DJ events, live events, houses of worship, auditoriums etc. It employs a high power long-excursion 21” driver capable of delivering exceptionally high levels of bass and sub-bass frequencies.
The A21s is a single 21” bass reflex sub-bass loudspeaker. Designed for use in nightclubs, mobile DJ events, live events, houses of worship, auditoriums etc. It employs a high power long-excursion 21” driver capable of delivering exceptionally high levels of bass and sub-bass frequencies.
This bass enclosure is compact, tonally accurate can be used in singles, pairs, stacked or flown using respective accessories. By virtue of its size and geometry, it tends to radiate more energy forward than behind thus steering sound where it is needed. Stacks of the same can bring unprecedented amounts of energy to the fore.
Recommended configurations are 1 or 2 subs for every A112, A115 or the A215 mid-top
Using extended DSP algorithms this sub can be configured as a cardioid pattern, bringing a new level of control in live venues
- Audio Lotus Signature tone
- Complete wooden construction for superior tonal performance.
- Compact and super optimized ported enclosure.
- Install grade.
- 21″ extended LF sub-bass driver.
- 1600WAES / 2000WPK
- Textured duracrylic finish/custom colors available.
- C G optimized geometrical construction.
- FEA optimized box design
- C G optimized handles and fly points.
| Driver config | 1x 21″ LF |
| Power handling LF/LMF | 1200WAES |
| Enclosure type | Ported direct radiator |
| Dispersion | Omnidirectional for a single enclosure. |
| Impedance | 8 ohms |
| Frequency Response | 40Hz – 600Hz, -3dB |
| Frequency Response | 36Hz – 950Hz, -6dB |
| SPL 1W/1m | 99.5dB |
| Protection | External |
| Max SPL (1m) 1/4 space radiation | 130dB cont., 133dB pk |
| Connections | 2x NeutrikTM SpkonTM NL4 with link thru |
| Height | 672mm (26.5″) |
| Width | 614mm (24.2″) |
| Depth | 730mm (28.7″) |
| Weight | 53.4kg (117.7lbs) |
| Enclosure material | 19mm marine grade ply |
| Enclosureshape | Cuboid |
| Finish | Gun painted sputtered acrylic |
| Colours | yes, RAL spectrum |
| Grille | Perforated galvanized steel, powder coated |
| Wall / Ceiling mount | N/A |
- FOH/Zonefill sub for Bar/Club/Lounges
- FOH/Zonefill sub for Fitness/Dance studios
Overview
The A21s is a single 21” bass reflex sub-bass loudspeaker. Designed for use in nightclubs, mobile DJ events, live events, houses of worship, auditoriums etc. It employs a high power long-excursion 21” driver capable of delivering exceptionally high levels of bass and sub-bass frequencies.
This bass enclosure is compact, tonally accurate can be used in singles, pairs, stacked or flown using respective accessories. By virtue of its size and geometry, it tends to radiate more energy forward than behind thus steering sound where it is needed. Stacks of the same can bring unprecedented amounts of energy to the fore.
Recommended configurations are 1 or 2 subs for every A112, A115 or the A215 mid-top. Using extended DSP algorithms this sub can be configured as a cardioid pattern, bringing a new level of control in live venues
Key Features
- Audio Lotus Signature tone
- Complete wooden construction for superior tonal performance.
- Compact and super optimized ported enclosure.
- Install grade.
- 21″ extended LF sub-bass driver.
- 1600WAES / 2000WPK
- Textured duracrylic finish/custom colors available.
- C G optimized geometrical construction.
- FEA optimized box design
- C G optimized handles and fly points.
Detailed Specifications
| Driver config | 1x 21″ LF |
| Power handling LF/LMF | 1200WAES |
| Enclosure type | Ported direct radiator |
| Dispersion | Omnidirectional for a single enclosure. |
| Impedance | 8 ohms |
| Frequency Response | 40Hz – 600Hz, -3dB |
| Frequency Response | 36Hz – 950Hz, -6dB |
| SPL 1W/1m | 99.5dB |
| Protection | External |
| Max SPL (1m) 1/4 space radiation | 130dB cont., 133dB pk |
| Connections | 2x NeutrikTM SpkonTM NL4 with link thru |
| Height | 672mm (26.5″) |
| Width | 614mm (24.2″) |
| Depth | 730mm (28.7″) |
| Weight | 53.4kg (117.7lbs) |
| Enclosure material | 19mm marine grade ply |
| Enclosureshape | Cuboid |
| Finish | Gun painted sputtered acrylic |
| Colours | yes, RAL spectrum |
| Grille | Perforated galvanized steel, powder coated |
| Wall / Ceiling mount | N/A |
Applications
- FOH/Zonefill sub for Bar/Club/Lounges
- FOH/Zonefill sub for Fitness/Dance studios
* – These enclosures will need subs to support their low end
Specifications and appearance are subject to change without notice.
‘+ – not part of standard features, i.e., optional
FOH # Front of House (aka Main System or Main PA)
C G Centre of Gravity
ER Extended Range (in this case extended LF range)
HR High Resolution
LF Low-Frequency unit/driver
LMF Low mid frequency unit/driver
HMF High mid frequency unit/driver
HF High-frequency unit/driver
RAL German Institute for color matching/standardization system
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