Ok, so I had this awesome box designed in my head...
it featured quite a lot of angles, so I had to do some more calculations than a normal rectangular box...
after testing the volume in winisd pro, i was convinced...
everything was all fine and dandy......until I saw the port velocity... i remember in winisd beta, the mach figures would turn red after .16 or .17... I assume this would be audible air turbulence... but in winisd pro, the velocity was off the scale...way over scale..I'd need 8 ports to reduce that to a minimum...
Hmm, so alright, I thought I'd go with 4 X 4" ports instead... so the velocity dropped a considerable deal, but the length...whoa...50"?? 90"??? wtf???
1. If I use 4 ports, then do I divide the total length by 4? or do all 4 ports have to extend to that impossible length?
2. So I thought about a slot port too... 5cm opening would create too much turbulence, so i added just a couple more cm... but the length would sometimes reach another 50~70"... so bend the ports, yeah... but it would mean that I'd need more than one bend, cause the maximum width I have is 37" (with 0.75"MDF).. what are the consequences of having a 180 degree bend? What if I have about 2 180 degree bends? (aside from the volume that the port will take)
Sony C90, 210 EQ
Seas 27TDF/C, RE XXX 6.5, custom xo (dyn 240GT sitting idle)
RF 60.2 amp
Soundstream picasso 1400.1D
Bass drive-by's are uncool.