This cant be right..

[QuadPioneer 10+ year member]

I put all the specs on the re sight from the 15" HC into winisd and it still doesn't seem right, its saying that a 12" Pioneer will have high maximum spl than the 15" HC both in a 3.5 cube box tuned to 40 hz...

Dont get it... I dont wanna go a build a box based on wrong information now lol.

Tim

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[ss3079 5,000+ posts]

Lol, that cant be right.

Start playing around with the port or something, and double check the specs.

I would still rather do it by hand than with WinISD, but then again, I kind of like math

- Steve

 

[QuadPioneer 10+ year member]

What the formula?

 

[gellis4 10+ year member]

I'll give you all the specs for the HC.. RE emailed them to me.

hold on a sec... they gave me the same specs from the site, oh well.

 

[QuadPioneer 10+ year member]

What did you use to make you box? Formula? Or program?

 

[gellis4 10+ year member]

I didn't use anything.. i just made a box, didn't really care... I got lucky tho, it's really loud.

 

[Bavarian3 10+ year member]

Originally posted by gellis4 I didn't use anything.. i just made a box, didn't really care... I got lucky tho, it's really loud.

thats what i did. i just sorta put it together to the width and depth of what i wanted. turned out good but i havent heard it yet since i havent gotten my **** car back.

 

[LoneRanger 10+ year member]

I think the "maximum spl" thing is being misinterpreted here. That's not an exact spec as to how loud the driver will get, it's a representation of how efficient the subwoofer will be in said enclosure. It's very well possible that the pioneer would be more efficient in the enclosure for many reasons:

1. It requires a smaller box, both sealed and ported. The larger the box is, the more efficient the sub will be. Here's a hypothetical situation to help explain....Let's say that you have two drivers (sub Y and sub Z). Y requires a min. of 2 cubes ported, whereas sub Z requires 3 cubes. Sub Y will be more efficient in three cubes than sub Z would be because it would be like putting sub Z in a 4 cube box (well....not exactly, but you get the idea). EFFICIENCY DOESN'T ALWAYS MEAN LOUDNESS. Yes, it plays a part of it, but there are many other factors that come into play.

2. The RE HC is more of an SPL-oriented driver than the Pioneer. Without knowing the exact specs for either driver, I'm willing to bet that the Pioneer is a more efficient driver in the first place. If high efficiency directly translated into sound pressure, we'd all be competing with Kappa Perfects and MB Quarts //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

3. WinISD will NOT tell you how loud a sub will be in a given box....hell....it's not even good at close estimates. It gives you an idealized version of how it SHOULD perform in a given enclosure. I only use it to tweak boxes once I already have a design laid out.

 

[QuadPioneer 10+ year member]

Thanx ranger. That helps.