bbeljefe Posted July 12, 2013 Report Posted July 12, 2013 The red graph was a 1 cube rear and 3 cube front cabinet.... which now that I think about it while I'm fully awake, would become pretty impractical for two woofers in the amount of space you have to work with. You could try and model the box as a 2 cube rear and three cube front, giving you the same gross volume you have now but with port and internal baffle displacements that might wind up being a bit on the small side. You definitely need a larger cabinet in order to get the response right on a sixth order.... As for suitability, that woofer's EBP is ~76, which makes it an equally good candidate for sealed/4th orders or ported/6th orders. Facebook: facebook.com/audioanarchyllc Instagram: audioanarchyllc Youtube: youtube.com/bbeljefe
brent379 Posted July 12, 2013 Author Report Posted July 12, 2013 Well I have 6cubes to work with before any displacements so with the 5 cubes I have now that's after ALL displacements so I might be able to make it work with 2...
bbeljefe Posted July 12, 2013 Report Posted July 12, 2013 Okay, I put this driver in WinISD and yeah, these things don't like to go low in that air space. Tuned at 23 & 46 with 1.5 & 3.5 cubes respectively, I got a reasonable graph that's -3db @ 20 and +2db @ 23. And the mid band low is +.8 db @ ~28. And then there's a +6.5db peak @45, which isn't bad at all and then it's -3db @ 64, which again, ain't so bad. If you're modeling this driver for parallel operation WinISD, remember to half Re, Z and BL, because specs on dvc drivers are always (in my experience) figured in series. Facebook: facebook.com/audioanarchyllc Instagram: audioanarchyllc Youtube: youtube.com/bbeljefe
brent379 Posted July 12, 2013 Author Report Posted July 12, 2013 Oooooooooooo I wish I would have known that!!!!! No wander why your model is so different... I just plugged in the driver without changing parameters. Makes sense now. What kind of porting did u come up with
bbeljefe Posted July 12, 2013 Report Posted July 12, 2013 Oh yeah... using 6" ports I got 35.95" & 19.14. Kinda long, but I didn't play with other port configurations so I'm sure it can be tweaked into a manageable situation. Facebook: facebook.com/audioanarchyllc Instagram: audioanarchyllc Youtube: youtube.com/bbeljefe
brent379 Posted July 12, 2013 Author Report Posted July 12, 2013 Hmmmm I'm really liking the sound of this!
brent379 Posted July 12, 2013 Author Report Posted July 12, 2013 And on 6th orders does it matter whether you port from one chamber into another one or just port to the outside?
bbeljefe Posted July 12, 2013 Report Posted July 12, 2013 WinISD doesn't support series alignment of sixth orders so if you're using that software you'll have to keep both ports exiting to the outside of the cabinet. Facebook: facebook.com/audioanarchyllc Instagram: audioanarchyllc Youtube: youtube.com/bbeljefe
brent379 Posted July 12, 2013 Author Report Posted July 12, 2013 Ooooooo ok gotcha. I need to get some good software lol
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