Accuton S220-11-221

Description

The Accuton S220-11-221 is a 22 cm woofer with a sandwich cone. It has a rear-ventilated voice coil and a ferrite magnet. One of its impressive features is its ultra-low free-air resonance frequency of 22.1 Hz, which makes it the ideal bass driver.

 

Mechanical data:

• Total diameter / front panel 220 mm
  
• Hole cut-out 191 mm
  
• Minimum front panel thickness 9 mm
  
• Overall height 105 mm
  
• Magnet height 42 mm
  
• Magnet diameter 120 mm
  
• Screw holes Screws Din 7984 / Ø 4.50 Mm
• Weight (pair) 6.3 kg
  

Thiele-Small parameters

• Sensitivity Spl 88 dB
• Resistance(direct current) Re 5.9 Ohm
• Outdoor resonance frequency Fs 22.1 Hz
  
• Equivalent volume Vas 112.9 Ltr
  
• Mechanical quality Qms 5.73
  
• Electrical quality Qes 0.39
  
• Overall quality Qts 0.37
  
• Effective diaphragm area Sd 224 cm2
  
• Moving mass Mms 32.8 Gr
  
• Compliance of the diaphragm tension Cms 1.58 mm/N
  
• Mechanical resistance Rms 0.79 Kg*S

Voice coil parameters

• Load capacity P 150 W
  
• Impedance 11 Ohm
• Linear deflection Xmax +/-5 mm
  
• Diameter of the voice coil 38 mm
  
• Voice coil former material Ti
  
• Conductor material Cu
  
• Inductance of the voice coil Le 0.81 mH
  
• Force factor Bl 8.28 N/A
  
• Drive variant Overhanging
  
• Ferrofluid In air gap No

Housing recommendation Closed

• Vb: 39L, -4dB @ 40Hz, -13dB @ 20Hz, F-3dB: 42Hz, Q: 0.71 (typical)
  
• Vb: 101L, -4dB @ 40Hz, -10dB @ 20Hz, F-3dB: 44Hz, Q: 0.50 (extended bass)

Enclosure recommendation bass reflex

• Vb: 66L, port diameter: 70mm, length: 300mm, Fres: 22Hz, F-3dB: 27Hz, Q: 0.58 (optimal)
  
• Vb: 101L, port diameter: 70mm, length: 150mm, Fres: 23.5Hz, F-3dB: 24Hz, Q: 0.50 (extended bass)
  
• Vb: 56L, port diameter: 70mm, length: 300mm, Fres: 24Hz, F-3dB: 29Hz, Q: 0.61 (0.7dB ripple @ 50Hz)

Frequency response

Note

Not suitable for use in vehicles.

• This speaker chassis was specially developed for use in home and studio applications . For applications in the automotive sector, we recommend using the special automotive series from Accuton, which is available from Masori on request.
• The automotive version (Accuton Carhifi version) of Accuton meets the strict automotive standards and is specially designed for use in passenger cars and various other vehicles. It is resistant to vibrations, weather influences, heat and cold that can occur in an automotive environment. This ensures optimum audio quality and reliability.
• Contact us at Masori for more information on the Carhifi Automotive version of Accuton. We are happy to help you to find the right solution for your automotive requirements and to enable an optimal sound experience in your vehicle.