Help with 4th Order bandpass enclosure for a 15" 600W dual voice coil subwoofer (PA) - Page 4

9th December 2011, 04:04 AM

#31

Brian Steele Grenada

diyAudio Member

Join Date: Nov 2007

Quote:

Originally Posted by col

75mm off the frount chamber vents, quite an improvement.

thanks for the help!

col.

Three inches off the vents is quite a change, and the shape of the FR curve suggests that cutting them a bit shorter could even further flatten the passband, at the expense of some efficiency at 70~80 Hz (which may not be desirable for a pro audio sub). Nice work.

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