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Posts by catapult

I guess it's all relative: Buy the MDF Buy the veneer Buy the finish Buy the grill cloth Buy the glue and hardware Build the box Veneer the box Finish the box Build the grill If you can't do all that in a day, $200 all-in starts looking pretty cheap.
PE sells subwoofer kits or just the enclosures if you prefer to roll your own. If you're not in a hurry, wait until they're having one of their free shipping specials that they run from time to time. http://www.parts-express.com/wizards...AT&srchCat=536 http://www.parts-express.com/wizards...AT&srchCat=535
Yup, the QSC is another one with a CAD interface.
The $1K Rane RPM26z is a nice upgrade to the DCX2496. It has analog trims on the inputs and outputs, lower noise (hiss) and better reliability but the best thing of all is the software. It uses a CAD-style interface to drag and drop any processing blocks you want in any order you want and 'wire' them together. You can do things you simply can't do with the DCX2496. http://www.rane.com/rpm26z.html
Paul, did you ever publish your crossover? How did you end up dealing with the 10" AC offset? Here's Paul's Raptor build thread.http://www.htguide.com/forum/showthr...2&page=1&pp=35
I see constant directivity as a subset of controlled directivity, not the other way around. Earls speakers aren't constant D because they go from 90 degrees coverage to 360 as the frequency changes. But they are controlled because they have the polar response he wants. About dipoles having more reflections, not true compared to an omnidirectional woofer. A dipole or a cardioid will have a summed power response (average of measurements around a sphere) 4.8dB lower than an...
Controlled directivity just means it's, errr..., controlled. It doesn't say anything about what that control might be unless you're trying to narrow the definition for marketing purposes.
Sure, buying more drivers and building more boxes is a lot easier and cheaper than getting a $100 EQ and fixing the sub you already have..... NOT.
Raul, if you do decide to go the OB route, I'd keep a close eye on the progress of the NaO Note. It promises to be a nice upgrade to the Orion but we won't have any 3rd party impressions until DIY NE. It's a hybrid design: 3.5-way upper panel with a passive XO Bass bin, either dipole or ported Active XO/EQ between the two -- two amps...
Yeah, I guess we're quibbling over semantics. To me, constant directivity means it doesn't change with frequency. Earl's designs go from 90 degrees above 2K to 360 degrees below there so they don't really qualify in my mind. But hey, we all know how they work so who cares what we call it?
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