Yep, they had a limited amount for $150 each + free shipping and I grabbed the last two. That's what you get for hesitating when you see a good deal lulzAllcrispedup just bought 2 of these for a hella good price.
That's the default box that WinISD recommends, but that sound pretty far fetched to me, imo...Optimum would be 1.3net @ 37Hz for the vented side, 3.8net sealed side. Sounds crazy, but that gives a +/-3dB response (anechoic) of 22Hz to 60Hz.
Properly tuned bandpasses are flat, just not alot of subs like them very well, need a low EBP for decent freq response in 4th order BP**** is that freq response accurately modeled? Sounds like a very flat curve for a bandpass box.
When you take into account how far above Fs tuning is, you realize that the vented side would need to be smaller than standard 4th order vented just to keep gain down and the response at as low of a ripple as possible lol. Go any bigger and there will be a very noticeable spike around tuning, go any smaller and you'll notice a loss below Fs that high qts woofers should not have when dealing with the slope made possible by the sealed chamber. Only thing WinIsd cannot be used for is to model the inductance spawned upper end natural roll-off and circle port calculations (since it figures everything in with aero style coefficients.That's the default box that WinISD recommends, but that sound pretty far fetched to me, imo...
But I am using a 4th order too so we shall see
I hope it sounds like dog shitI guess I'm going to listen to WinISD then and go with 2.7 ported, 7.24 sealed, tuned to 38, 55 sq in of port area. Any objections?
That's not nice. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gifI hope it sounds like dog shit
//content.invisioncic.com/y282845/emoticons/sneaky.gif.7189749b3a3f769e8815b47e8ae87f88.gif
The world is a mean place //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gifThat's not nice. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif