JohnA Posted January 18, 2004 Share Posted January 18, 2004 I found some HDPE woofer enclosures at Parts express that are made for 8" woofers, cheap. I want to use them to build a pair of garage speakers. How do I use T-S prameters to find a driver that will work well enough with a 0.3 cu.ft. box? I would ask if I hadn't loaned out my Loudspeaker Cookbook. Quote Link to comment Share on other sites More sharing options...
WMcD Posted January 18, 2004 Share Posted January 18, 2004 Parts Express has a speaker selection wizard. I tried putting in a sealed box and it came up with one driver. I'm a bit surprized that PE doesn't have something recommend when they sell the box. Gil Quote Link to comment Share on other sites More sharing options...
Malcolm Posted January 18, 2004 Share Posted January 18, 2004 There are a number of freeware/shareware programs and spreadsheets on the net that will do the job. You'll have to do a search. I don't have access to the one I downloaded some time ago right now. Quote Link to comment Share on other sites More sharing options...
formica Posted January 18, 2004 Share Posted January 18, 2004 Unfortunately most software I've tried will calculate the box volume based one the T/S parameters and not the opposite. John... if you need the formulae, you can look around at the The Subwoofer DIY Page... it's got pretty much all the low frequency enclosure formulae. Are the enclosures sealed? If so, check out The Subwoofer DIY Page's Sealed Systems: Box Calculations ... which has Vb = Vas/((Qtc/Qts)^2-1) . Hope it'll help... Rob Quote Link to comment Share on other sites More sharing options...
JohnA Posted January 19, 2004 Author Share Posted January 19, 2004 That Vb equation was what I was looking for. Gil, I didn't know about the selection wizard. PE does recommend 3 drivers, but the Eminence coaxial full-range they recommend would be too expensive to put in the garage after you buy a horn, compression driver and build a crossover. Quote Link to comment Share on other sites More sharing options...
fabulousfrankie Posted January 19, 2004 Share Posted January 19, 2004 I saw those and I'm considering getting two of them to put two Tangband 8's in my car. Quote Link to comment Share on other sites More sharing options...
itsmyforte Posted January 19, 2004 Share Posted January 19, 2004 try vifa p21w0-20-08 Quote Link to comment Share on other sites More sharing options...
hwatkins Posted January 19, 2004 Share Posted January 19, 2004 ---------------- On 1/19/2004 12:08:40 PM John Albright wrote: That Vb equation was what I was looking for. Gil, I didn't know about the selection wizard. PE does recommend 3 drivers, but the Eminence coaxial full-range they recommend would be too expensive to put in the garage after you buy a horn, compression driver and build a crossover. ---------------- Hello John - Do not know of a reverse calc either, In the past I used BoxPlot and WinISD. I had a situation for my center that was maximum height restricted, and I had to try a bunch of speakers to get a box match - After a few you start seeing a similar T/S that will get what you want. Abit of a PITA but effective none the less. Quote Link to comment Share on other sites More sharing options...
Q-Man Posted January 20, 2004 Share Posted January 20, 2004 Just an idea. I go to ebey and the local pawn shops and buy some rather cheap good speakers every now and then. I use them in my garage and outdoors. They are always cheap enought to replace every few years if needed. Unless your doing this for the fun of building something. Quote Link to comment Share on other sites More sharing options...
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