im no expert on this, but wouldn't there be organ pipe/port resonance issues with such a long port? looking in unibox a 38 " long/deep port will resonate at about 160 hz
I might actually just end up going with an single 8" port. like the one in the XXX box above. that driver has a ton a displacement so if he has no problems with noise then i dont think i would. plus going with the slot port i would loose alot more internal airspace so the box would have to be larger.
Interesting, i think as long as you cross the sub over low enough the port resonance won't be a problem, the only thing is the resonance might support harmonic distortion, but even then I wonder if it will be noticable.
I just got a few of the AL1804s I am starting off with a 6 cuft net sealed box , i'll play with it awhile with my QSC 1850HD bridged for 1800 watts and my BFD then go from there.
The 1804s are sweet, sweet ..snatch these up because they kick some serious tail! I can clip my QSC 1850HD and still I cannot get these drivers to bottom whatsoever! My meter don't read higher than 126dbs but I know I have been up in the 130s for a short time..this is the first time I have ever achieved these sort of SPLs.
man!! this is really making me ancious to hear mine. i have my BFD and my XA-900 ready to go now. All i am waiting on is the 1804!! then it will be time to hit the table saw!!
well when i finally get my driver I think I have decided on an enclosure. I think I am going to go with about 17.5ubes internal tuned to 15hz with a port that will be 3" x 28.5". Here is a quick drawing I did of what I have in mind. Any opinions would be greatly appriciated!!
p.s. this drawing does not show the internal bracing. there will be alot of it!