Ok so I took the plunge and made a ported box for my dd2515. I am not to sure if I made the port properly. The box is 4.5cuft and for this box dd recomends 72sqin of port area. My port measures 4" by 18" by 16" and is 4" off the back wall. If someone can confirm this is the correct port it would be greatly apprecated. The box just doesnt sound right. Any help or suggestions are welcome.

P.S. Im am using a us amps usa 150 to power it, could this inclosure be too big for only 450w of power.

Thanks

Kerri

 

try here: Speaker Enclosure Volume Calculator

Many, many calculators INCLUDING a port one. Hope it helps.

John

 

the box is correct if you built it 4.5 cu.ft internal volume Plus the port.

I think your problem may just be a lack of power... the more port area you have the harder it is to achive any kind of port velocity at lower listening levels. with 72.sq.in of port it'll only really whine when cranking it pretty good.

 

so would my best bet be to make the smallest box dd recomends with that little wattage?

 

not so much the smllest box, just less port area...drop me a PM I'll pull the t/s specs on the sub and figure you something out that will work well without needing alot of power.

 

Thanks, you rock!!