1. ## help biulding my sub box on this weekend!!

hello everyone ,well im biulding my woofer box on this long weekend ..i have a litte bit of questions ..well im biulding a 3.5 cu ft vented.. but I don't understand this .. the air space should be at 3.7 cu ft, so is that means that I have to make my box in the dimension that equals to 3.7cuft... also it has two port holes 4"in by 11" and after the speaker displacement and port displacement the total volume is 3.5cuft ?should I convert my round ports to square one.? well I hope this info helps..!
thanks and happy thanksgiving to everyone !!!

2. ## Re: help biulding my sub box on this weekend!!

if your round ports arent flared then id make it a slot port instead. your .2 displacement for 2 ports and sub might be off.

3. ## Re: help biulding my sub box on this weekend!!

.2 for ports and sub is definitely wrong, sub alone displaces that easily

4. ## Re: help biulding my sub box on this weekend!!

Originally Posted by mazdakid
if your round ports arent flared then id make it a slot port instead. your .2 displacement for 2 ports and sub might be off.
Originally Posted by QuantumAudio
.2 for ports and sub is definitely wrong, sub alone displaces that easily
x3... might wanna recheck that math. .15 for ports assuming no flares more with them and .2 or more for sub assuming its a 15? look for 3.8-3.9 cubic feet. your at around 3.3 cubic ft and roughly 38-39 Hz tuning depending on the subs displacement...

5. ## Re: help biulding my sub box on this weekend!!

oh okk... but does anybody know what im talking about.. i need help on the displacement so how is the before and after displacement??

6. ## Re: help biulding my sub box on this weekend!!

the ports take up .152778 cubes

7. ## Re: help biulding my sub box on this weekend!!

and a 15 is like .2 to .25 cubes hey it could be a crapy speaker and on take up .05 cubes funky pup

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