Subwoofer box tuning frequency is determined by the co-ordination of air compliance, box 's volume and speaker resonance frequency.and the tuning changes the frequency at which frequency response peaks.
A subwoofer box of volume 400 m3 requires the minimum air of 100 m3. Resonance frequency of speaker is 40 hertz. Calculate the tuning frequency (Fb)?
Box / Enclosure Tuning Frequency (Fb)
Fb= (A / V)0.31 x Fs = (100 / 400)0.31 x 40 = 0.6507 x 40 = 26.028