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Old 5th May 2013, 07:08 PM   #1
navZ is offline navZ
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Default Reconstruction Tips

i have a pair of sealed-type boxes: 24cm x 24cm x 46cm (internal dimensions)
and width of mdf is 18mm.
Speaker fitted on a 24cm x 46cm face.
By measuring current at diff frequencies, lowest current gave the equivalent resonance of speaker in box.
The current was minimum at 65Hz(resonance freq.) and for frequencies above that, current decrements were very little.

All i need is advice on modifying box(port, stuffing, etc.) to get the resonance at 55Hz.
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Old 13th May 2013, 01:47 AM   #2
dangus is offline dangus  Canada
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Adding mass to the driver should do it, but that will reduce efficiency (sensitivity). It would be more efficient to just boost the bass with EQ, but that may affect transient performance.
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Old 13th May 2013, 06:27 AM   #3
navZ is offline navZ
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now its resonance is above 65 so I m gonna cut a port 24*2*18 & then fill glasswool to see what happens. Any tips???
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