Port hole

[fex]

Hey,

 

Where would the best place to put a port hole in a double 12" subwoofer box be? I'm not getting enough response for bass so I presume it needs more air?

 

fex

[bongo]

what do you mean by response?

 

adding a port will just deepen the bass.

[fex]

doesn't seem loud

 

not getting enough bass

[bongo]

what setup have you got?

 

sub,amp, power ratings etc...

[fex]

2 12" 1000W subs

1200W amp

[Stu]

You don't just randomly add a port. A port is a tuned length which works with the particular characteristics of your sub. If you look for the ts parameters for your sub, you can put them into a speaker calculator and find out what box volume and what diameter/length port you need.

[SteveB]

Stu is spot on. You should set the port to tune the box a few Hertz below speaker free air resonance. Randomly adding a port can blow up your speaker and amp.

[alexc1983]

from my expenience, and ive done alot of installs. For quality a sealed enclosure is far superior to a ported one. People who go for high spl have ported enclosures but its not quite as simple as drilling a hole. Depends on volume of box ect. Sounds like you need a much bigger amp as most 1000watt amps only actually produce about 250 watts rms at 4 ohms.