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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