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In Reply to: RE: Help with calulating a quad speaker sealed enclosure posted by amnesiac on June 03, 2014 at 18:12:08
Read this article by Nelson Pass on getting good bass in an open type baffle. Perfect if you want to use 4 drivers per side.
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Great article, great acronym - SLOB.
1) seems ideal for matching with a short horn, like a Le cleach
a) the horn would use the OB as an extension of its mouth
b) the depth of the slots would put the centres of the woofers as far back as that of the upper driver - much tidier than having the horn jut out beyond the bass box.
2) looks like one could scale up driver numbers easily - use two slots rather than one.
3) I wonder if slightly splayed or v shaped slots would be a good idea
4) slot depth could possibly be dialed to produce a null where you want to low pass the woofers anyway, to steepen a low order passive crossover
At the frequencies it works at, I doubt that tapered or V shaped slots would matter. It may if you were going to use it up into the lower mids (300 or so).
They always put a smile on my face. And I also have the same Stokowski-with-music-note hair Absolute Sound poster in my listening room, too.
Thanks!
What an impressive body of work.
Extraordinary man.
Hey guys thanks for your input. I will check it out better tonite. I have been down that design road with SLOB but my drivers are very light paper cones and not suitable. I will definitely build a slot loaded sealed or ported enclosure one day when 4 of the right drivers come my way.
I have actually a pair of jabo mid horns and a pair of big university mid bass horns that load down to 200 herts. Whether I include the midbass is yet to be decided. I will post picks on my(facebook) soon. I just having a big clean up of my house before I take the pictures .
Taking my daughter to the circus thanks again guys.
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