Determining Drivers for a Sealed Box?

[gtforme00]

I am looking forward to Zaph's review of the tangband. http://www.zaphaudio.com/blog.html

The build quality does look impressive.


If it tests well, it could make a good alternative to the seas 7" woofer (ever increasing in cost)

-David

[mace]

Hello squidbait,

[URL=http://www.audioheuristics.org/projects_gallery/RS225_RS28A_updates/dayton_reference_rs225.htm]

Above is a link for a sealed design using a 8" driver. Just finished these up this last weekend, a very nice design with very nice bass.

[jupiterjune]

One of my objections to Dickason is that you already need to understand what is it all about to understand the book.

Yeah, I agree. I think the subtlety of the term "cookbook" is often missed. It's a cookbook, not a "how to cook" book. But still, its worth a look.

My question is, how do I determine which speakers are best in a sealed box

Here is a link to a sealed box designer.

http://www.carstereo.com/help/Articles.cfm?id=30

A box Qts of .707 is usually regarded as best. (hopefully LDC covers why)

Assuming you want your bass to as deep as possible (F3), you will probably come to the conclusion that a driver Qts of .4 gives you the best combination of reasonable box size and deepest bass.

JJ

[Doug Kim]

JJ

Thanks for the link.
I have Marchand Bassis which adjust Q of sealed box, so I gues I can use a little high Qtc to get better bass.
I got this Bassis for about 3 years ago, but I haven't had chance to really make use of it yet.

Doug