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Titanic 12 and bash 500 build

post #1 of 6
2/1/13 at 2:50pm
Thread Starter 
Hey guys,

I'm using winisd pro to model this combo. I like 3.5 - 4 ft3 tuned around 20 hz but i can't figure out how to keep the port velocity down. I was thinking about going sonosub.... but if i have to get creative with the port idk, maybe i'm doing something wrong. I'm using a hpf SOS q=1 17mhz 2nd order.

looks like 225 ish watts will hit xmax, so thats what i'm designing the ports to.

Any help would be great
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post #2 of 6
2/1/13 at 3:03pm

If air velocity is too high and you can't fit round ports, go with a slot port. I did a quick model and it looks like three 3" x 38" pvc ports should work with an enclosure size of 3.5cu ft, 500w, 18hz highpass.

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post #3 of 6
2/1/13 at 4:13pm
Thread Starter 
What subtype filter did you select, with that port setup i get about 20 m/s port velocity
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post #4 of 6
2/1/13 at 4:22pm

20m/s is fine I think,  even better if you flare the ports.

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post #5 of 6
2/1/13 at 5:06pm
Thread Starter 
http://techtalk.parts-express.com/showthread.php?217443-PE-500W-BASH-Amp-(300-752)-High-Pass-Filter-Questions

This is saying it should be Fc=29.9 Q=1.22.... anyone know whats correct for the highpass on the Bash 500 amp?
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post #6 of 6
2/1/13 at 6:50pm
Not sure about that amps filter, but one of the easiest ways to get air velocity down is to set the port tune either right at, or just below the amps HPF.
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