Question about differences between 2 box's volume

[JarvisB 10+ year member]

I m new to box building.. so here is a question I got about box's volumes..

Let's say I got 2 different designs(both ported), one of them is 7 cu. ft. @ 32hz and another one is like 5 cu. ft. @ 32hz..

what is the difference in outcome between those 2 different boxes?

The bigger volume(7 cu. ft.) has more space for the airflow.. meaning= the bass will be deeper and stuff like that?

I m still learning so I want to find out for sure..

I m planning on building a box tomorrow.. Answers would be appreciated.. Thanks

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[Immacomputer 10+ year member]

The larger enclosure will have more gain around tuning and will give a little bit better lower end. It will also have worse transient response, worse group delay, and worse upper frequency extension. A lot of these factors and how much they will change things will be greatly dependent on the sub.

 

[JarvisB 10+ year member]

So which box would be considered as a better option?

I have a design for 7 cu. ft. and I m not sure if I want to do it..

 

[djman37 5,000+ posts]

I personally like the smaller boxes IF you have the wattage to drive them. The bigger box will take less power to get the subs to full excursion. go smaller for daily.

what size, how many?

 

[JarvisB 10+ year member]

7 cu. ft. at 32 hz.. for 2 fi Q's

 

[djman37 5,000+ posts]

7 cu. ft. at 32 hz.. for 2 fi Q's

15's?

 

[JarvisB 10+ year member]

yeahh, sorry, forgot to mention that its 15s

 

[BJ The Man 10+ year member]

So 3.5 each at 32. That should be a good all around daily box. Lets us know how it turns out.

Pics?

 

[Immacomputer 10+ year member]

So which box would be considered as a better option?
I have a design for 7 cu. ft. and I m not sure if I want to do it..

I can't say what is a better option for you. I don't know what sound you like and what you're looking for. I listed the changes in performance and you should be able to go from there.