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Subwoofer Equalizer (SN74HC191NSR)

2017-07-06 17:43  
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p71 f4 Subwoofer Equalizer

Subwoofer Equalizer…[more]

: The Linkwitz transform circuit is a hugely flexible way to equalize
the bottom end of a sealed loudspeaker enclosure. A speaker that is
corrected using this method is flat from below resonance to the upper
limit of the selected driver. The low frequency roll off point is
determined by the parameters of the transform circuit. Should the
enclosure size be too small and cause a lump in the response before roll
off, this is also corrected. A conventional active crossover netw1ork
is then used to divide the subwoofer signal from the main channel
signals. Note that there is also a separate spreadsheet calculator
available for calculating component values for different situations not
handled by the original circuit.