Effects of Larger Box Volume on the Q 15

[Shinjo Yoshida 0]

Hi everyone.

I've been reading up on Fi Car Audio and in particular the Q series of subwoofers. I really can't wait to start getting my cash together for one of these bad boys. However I have a small knowledge base problem. I don't understand the exact effect of a larger box volume for a subwoofer. In particular I've read that the recommended box size for a sealed Q 15 is 2 - 2.6 cuft.

Now, would the subwoofer get louder if the size was 2.6cuft vs 2cuft? There is more air to be moved in a 2.6 vs a 2 correct? But if this is true then would there be any other effects of having a larger box beside the obvious space consumption in the trunk?

Bonus question: I listen to a lot of different types of music. Am I right in thinking that by having a Q 15 in a 2.6 sealed enclosure that I can expect it to hit hard when I want to throw on some rap or techno and that I can expect it to have form and clarity with rock or complex bass movements?

Thank you in advance, and I appreciate your patience with these basic questions.

[DevilDriver 28]

Take a look in the Technical section here and read the thread called "Hoffman's Iron Law"....I think you'll find it a little interesting.

To answer the question directly, increasing enclosure size will generally

Increase:

1. Efficiency

2. Excursion

3. Output

4. Low frequency extension

Decrease:

1. Mechanical power handling

2. System Q (ie. decrease the damping effects of the enclosure on the sub)

These are all good things, in my opinion.

[bdawson72 0]

Very interesting

[Shinjo Yoshida 0]

Looked through the technical forum and couldn't find the topic on Hoffman's Law.

At any rate thanks for the reply. I guess I should aim for the 2.6 limit after displacement then huh?

[ANeonRider 3]

1st page, second topic:

http://www.soundsolutionsaudio.com/forum/i...?showtopic=7115