Resource to calculate, building and measuring Hi Fi Loudspeakers and more...

Sunday, January 20, 2019
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   Closed Enclosure Calculator ( choose Volume)

  • If only Qms and Qes are known, press Qts button to calculate Qts
  • Qms and Qes are optional
  • Fs, Qts and Vas must be entered

Driver Parameters
Fs : Hz - Resonant frequency  of the driver.
Qms : - Q mechanical - needed to calculate Qts
Qes : - Q electrical - needed to calculate Qts
Qts : - Total Q of the driver  
Vas : liters - Volume of air with same compliance.
  • Estimate volume of internal driver and parts (Vdr)
  • Consider the length, wide and wide when estimating
  • Enter volume of enclosure desired
Vdr : liters - Volume of internal driver and parts
Vb : liters - Volume of enclosure to calculate performance specifications
please enter estimated Box - volume!


Calculated inside Dimensions


Calculated Performance

Width =   cm         inches
Height =   cm         inches
Depth =   cm         inches
Volume =   liters      in3
Q Total Q of system
Hz Frequency at peak dB
Peak db Peak level at resonance fb
f-3 Hz "Cut off" frequency  at -3dB

Plot Frequency Response CurveOpens in new window