cheesehead

Great! Thanks Guys!

I'm with DD on the blazer, downfiring isn't going to buy you anything. Will I lose anything from firing down? SQ,SPL? The only advantage I can see is that I can build a false floor of sorts and be able to utilize my hatch area more.

Driver sag is strictly a function of the suspension stiffness and the mass of the moving assembly. This is very intuitive: a stiffer suspension will decrease sag, while more mass will increase sag. How much sag is acceptable? This will vary from opinion to opinion, but usually no more than 10% of Xmax should be considered acceptable. 12" Atlas Xmax = 18mm Cms = 0.395mm/N = 0.000395m/N Mms = 119g = 0.119kg g = 9.81m/s Sag = Cms * Mms * g Sag = 0.000395m/N * 0.119kg * 9.81m/s Sag = 0.000461m = .461mm % Sag = Sag/Xmax*100 % Sag = 2.56% 2.56% = good candidate!

It will be going in a 4dr. Chevy s-10 blazer

Thanks for the reply! With what you have stated does the Atlas make a good candidate for downfiring in your opinion? What are your thought as far a output/sq ect. compared to conventional rear firing towards the hatch/window?

As the title states I am contemplating designing a down firing box for one 12" Atlas. I have heard this helps increase SPL as well as makes for a stealth install. (no need for a grill) Here is a link to the discussion I had over @ DIY http://www.diymobileaudio.com/forum/showth...ight=downfiring I have also talked with Mr. Marv @ http://community-2.webtv.net/MarvsPlace/MarvsPlace/ Marv has suggested that I look into the following - " There are a couple of things to note however-all subs are not created equal so you definitely want to check with the manufacturer to make sure your sub will not exhibit excessive sag when mounted upside down (from what I understand heavy cone/large motor subs are typically not good candidates). Also, generally I make sure I have a minimum clearance of at least 3" under a 12" sub to keep it from pre-loading." Anyone from AA what to chime in? Any one else have any thoughts on this? Thanks in advance for the help. P.S. I will be utilizing a box size of 1.25 cu.ft sealed for the enclosure

Thanks rjamr0221 I appreciate the response. I will be sending you an e-mail with a few questions. Thanks Again!

OK thanks I can't seem to find any manufacturer recommended sizes. I am looking to keep it sealed for simplicity reasons. And so far both recommendations have been for sealed. I will be placing this into the hatch of a 1995 Chevy S-10 Blazer. Does anyone have any recommendations on locations and firing of the sub (towards the back window,down,towards the back seats,in a corner ect.).

Thanks Lord B. Have you had any personal experience with this sub? If so could you give me a little review?

I just purchased a 12" Atlas and am looking for some suggestions on enclosures. I will be running just one 12" with 300w rms going to it. Any recommendations appreciated.