On average what did you gain when you rounded the corners in your box

[snoopdan 5,000+ posts]

Sometimes its a good thing, sometimes not.

If your corner rounding efforts start to remove cubic feet from the enclosure, you can dip below the minimum cubic foot required for the driver and could have adverse results. Of course, sometimes you can get better results. I put in a 45 deg wall (and significantly reduced volume that the drivers "see" and got better results on the meter.

My buddy has 4 18's in a wall in his astro van, he did something similar but it drastically reduced his spl (went from a 154 to a 149)... He promptly removed the angles //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

But all in all, the ideology of rounding ports is to reduce turbulance in the venting path. You could visiblely see this if you filled your enclosure with smoke and could watch the interaction of the port path during compression/decompression of the chamber.

 

[CRXBMPN 5,000+ posts]

how can you gain 2-5db and not be able to hear an audible difference //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[snoopdan 5,000+ posts]

how can you gain 2-5db and not be able to hear an audible difference //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

well...if its like a high note burp like 70-90 hz and depending on what kind of vehicle it is....you might not.

 

[vehementSPL 10+ year member]

Well just like you can sound 3 to 5 db louder than what you actually hit sometimes. Everybody thinks what you hit is how loud you are. But with the termlabs if you have any cancellation anywhere they will **** you on the meter

 

[vehementSPL 10+ year member]

how can you gain 2-5db and not be able to hear an audible difference //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

But yes in theory. If all things were equal and there was no cancellation then you would hear the difference. Just like some people disconnect their highs in their doors and gain massive amounts of spl on the lab. Can't hear a difference.

 

[n2audio 5,000+ posts]

Great idea! Sub spheres! pat. pending

http://www.usenclosure.com/IMAGE%20GALLERYS/picturegallery1.htm

 

[ThatChevyGuy 5,000+ posts]

I thought rounding the corners on the ports only helped to cut down on that annoying, whistling, port noise.

Thats all i gained.