Have you considered the Markaudio drivers?  A “highly modified” version of the CHR-70 is used (without any filtering) in a $4000 speaker set but that is for a floor standing speaker.  I have an older 4″ pair (Pluvia 7) and they sound great but there is little bass heard.  I have them in a 9 liter vented cabinet.  Madisound.com offers some of their drivers.  According to the manufacturer there is an extended break-in period for these drivers.  100 hours of very low volume is recommended then gradually raise the volume to ‘normal’ listening levels.  Also max wattage is 20 watts with a listed 85.5 dB efficiency at 8 Ohms.


Ok, I just had a thought.  I’m wondering what a mini horn would be like.  “Mini” as in using something like a 2″ Aurasound full range driver in a bookshelf sized horn enclosure.  I don’t have the astronaut math required to design horn enclosures so I don’t know how that would work.  Good luck with your project!

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