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AVS › AVS Forum › Audio › DIY Speakers and Subs › 6 dB/Octave-Diappolito-D28 is my favorite
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6 dB/Octave-Diappolito-D28 is my favorite  

post #1 of 3
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I've been building my own speaks/subs for about 30 years, and I still keep coming back to this formula. I drill out the center pole of the D28 to reduce efficiency so I don't need a bleed off resitor and feed the back wave into it's own little transmission line. But that's just me. It's amazing how many $10k plus speakers use this tweeter.
post #2 of 3
Any idea what this does to the Fs?
post #3 of 3
How can it be D'Appollito and be 6dB/octave?

Kal
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AVS › AVS Forum › Audio › DIY Speakers and Subs › 6 dB/Octave-Diappolito-D28 is my favorite