Quasar 221S

DESCRIPTION

The Atomik  Q221S is an ultra-powerful infra sub-bass loudspeaker, engineered to deliver exceptional subsonic performance. Designed for large concert venues and nightclubs, it offers very high acoustical output, ensuring deep, impactful bass reproduction.

Featuring dual 4.5-inch voice coils and an 8000-watt peak power handling capacity, the Q221S is built for maximum efficiency and reliability. Its low-noise forced air cooling system enhances thermal management, allowing sustained high-performance operation under demanding conditions.

With industry-leading output and precision-engineered acoustics, the Q221S is designed to outperform rival subwoofers, making it an ideal choice for high-intensity sound reinforcement applications.

Digital+Analog

Features

  • Subwoofer with incredible SPL levels.
  • 21” drivers with 4.5” voice coils.
  • Dual Neutrik NL4 Speakon connectors.
  • Heavy-duty 18mm marine plywood enclosure.
  • Perfectly suited for large discos or live performances.

Technical Specifications

Sub Driver
21” neodymium sub driver with dual 4.24 voice coils.
Enclosure
Bandpass Hornloaded
Axial Sensitivity
103.1dB @ 1W/1m
Maximum SPL
148.2 dB Peak SPL (Measured – AES75-2022 M-Noise)
148.4 dB Peak SPL inf (Measured – AES75-2022 M-Noise)
Power
Max 3600 watts long term continuous / Peak 8000 watts
Nominal Impedance
4 ohms passive
Minimal Impedance
3.0 ohms @ 59 Hz
Frequency Response
-3dB 34Hz to 100Hz
Dimensions (in mm & in WxHxD)
1546mm x 679mm x 1024mm, 60.86″ x 26.73″ x 40.31″
Weight
115kg / 253lbs

*Atomik  products are continually improved. All specifications are therefore subject to change without notice.

Measurements

Frequency & Phase Response – Raw

Frequency & Phase Response – Processed

Impedance & Phase Response

2D Horizontal Polar Plot

2D Vertical Polar Plot

+ For a clearer view, please open the graph in a separate tab.

+ For more detailed information about this product, please refer to the documents listed below.

Quick Start Guide

A quick video to understand our documentation

 Downloads

ACCESSORIES
CUTSHEET
REV 1.0.10
DOWNLOAD
DATASHEET
REV 1.0.11
DOWNLOAD
USER MANUAL
REV 1.0.20
DOWNLOAD
CONFIGURATIONS
REV 1.0.1
CLICK HERE
2D DRAWINGS – PDF
REV 1.0.1
DOWNLOAD
2D DRAWINGS – CAD
REV 1.0.1
DOWNLOAD
3D DRAWINGS
REV 1.0.1
DOWNLOAD
SKETCHUP FILES
REV 1.0.1
DOWNLOAD
IMAGE LIBRARY
REV 1.0.1
DOWNLOAD
IMPULSE RESPONSE
REV 1.0.1
DOWNLOAD
PRESETS & TUNINGS
REV 1.0.1
DOWNLOAD
PRESETS & TUNING USER GUIDE
REV 1.0.1
DOWNLOAD
MUSIC
REV 1.0.1
CLICK HERE
Download Autodesk DWG TrueView by clicking here to view our .dwg files.
Download SketchUp Viewers (for iOS & Android) by clicking here to view our .skp files.
Download Adobe Acrobat Reader by clicking here to view our .pdf files.