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Multi-Way Conventional loudspeakers with crossovers

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Old 27th September 2005, 07:54 PM   #1
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Join Date: Jul 2004
Location: Finland
Default AUDAX speaker, with "special" sealed cabinet

I bought myself a few "cheapish" Audax speaker drivers from my work. I'm planning to build a pair of speakers with these. The drivers are HP170M0 and TM025F1. Since the woofers have quite a high Q-values, sealed enclosure seems like the best option.

Instead of standard sealed box, I got interested in North Creek's MAPD enclosure type. I have an old double-bassreflex cabinet, which I once made just for testing out some junk drivers. That would be easy to convert into a MAPD box. As the author says:

Quote:
with a driver with a Qts of 0.6 or above, this is the best way I have found to tune its low end, and with generally spectacular results. Try it!
But I wonder what's the difference between between similar sized sealed, or double-aperiodic boxes? Lower Qtc?

I ran a cross-over simulation with these two drivers. Simple -12dB/oct filters...

So, how should this idea to be rated?:
1)
2)
3)
4-999)

http://www.audax.fr/docs/@tm025f1.jpg
http://www.audax.fr/docs/@hp170m0.jpg

http://www.northcreekmusic.com/MAPD1.htm
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Old 27th September 2005, 07:56 PM   #2
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Location: Finland
And the simulated response curve.
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