Printer Friendly Forum Posts - 2 subs in one box with no divider

i am working on a box for my new 2007 tundra crewmax and was wanting to build the smallest box i can so it doesn't interfere with the reclining back seats. i am going to use two audiobahn dvc subs and my question is can i run both of these speakers in one box with no divider? i beleive that the speakers call for 1 cubic foot of space per sub. and i can only get about 1.3 for both of them. i was thinking that maybe they could be run in one box that size with the amp bridged so they play the same. is this possible or am i crazy? are there any other tricks i could do to make them run in a small space togeather such as this or what is the smallest area they should run in? thanks

First of all the manufacturers specs are generally spot on when it comes to enclosure sizes so you don't really have enough room for two of those subs. Second of all if you don't already have the subs I would highly recommend going with something else as you can get much better for the price you will probably pay for those subs, also in my experience audiobahn subs generally require large airspaces for their subs. If you have to use those subs then I would recommend using 1 in the proper sized enclosure, it will sound much better than two in an enclosure thats much too small imo. Hope this helps.
--->Richard

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2008 Scion xB
Pioneer AVIC-D3
RF 3Sixty.2 sound processor
Stock speakers (for now ;))

The wiring of the subwoofers makes absolutely no difference in terms of their interaction with the airspace around them. Of course you neglected to tell us the size of the woofers you are considering... but 1cft recommended probably means a 12.

A pair a of 12's in 1.3cft will sound truly awful, don't waste your money or your time.

Actually, in your case I'd recommend a pair of 8's.... playing directly into the listening area like that does real well with smaller woofers and you'd get the most boom-for-space. 1.3 cft, even for 10's, is still a bit smallish.

Oh. And do something other than Audiobahn. Yuk.

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"I'm finished!" - Daniel Plainview

have yo looked into pioneers line of shallow mount subs...i have heard this in person(12s) in the correct size box...they hit pretty hard while hitting most of the notes they say...getting to my point each 12in sub only requires an air space between the amounts of .5 and 1cu ft...just thought is throw it out there =)

+1 on the shallow pioneers. They will fit just about anywhere. If you don't like pioneer, Blaudot and Kicker both make shallow mount subs too. If you want boom, the 8's will probably let you down, but if you just want improved sound, I would encourage the 8's.

i second sarcomax's reply on the eights....

thanks for all the input.i already have the audiobahns. on there website it say's 1-2 cubic foot for the 12's so do you guy's think my best bet would to be to put just one sub in the box at 1.3 cubic feet? i could alway's sell these speakers and get some more. so which models do you recomend for such a small space? would ten's have a better sound than the twelve's? i listen to hard rock music mostly that has punchy bass and i really want it to hit. but i like to listen to a little rap every now and then and i want it to sound good also. the amp i have already is a crunch blackmaxx 1000 watt. so what's your guy's opinion? one 12 in the correct airspace or two tens? thanks

belive it or not...im running a dual amp/sub combo...the amp pushes 300 watts max...whiel the sub handles 375 and its only a ten inch...i made a crude but well working sealed box...and i think the single sub sounds better the my buddies 89 camaro with twin duals runnig a 325 dual amp...i only paid 13 bucks for the sub brand new in box...id say go with the single...im sure youll be happy with the results...btw wuts the rms of the amp?

and the rms of the sub?

My only suggestion is to put whatever sub into the size box that it requires. You can get awesome sound quality and volume out of a single (non audiobling) 10, that as mentioned before can sound better than a multi sub system...If you have the right box.

the sub's rms is 400 watts and the amps 400 watts also. so you think one of the 12's will hit harder than two 10's?

I would recommend selling the audio junk and get something proper for that sized box, I would recommend a single 12" TC-2000 and you could probably shrink that box size a tad. That sub alone would out slam 4 audio junk subs, but you would have to hurry before they sell out. https://www.tcsounds.com/products.htm

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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

yes...a single sub in correct air space will always sound better due to the fact its using that space efficently...two crammed into to small of aspace would try to work twice as hard and still not sound good. just do a single 12...btw seeing as u have 400/400 sub/amp itll sound great cuz thats considered a matched pair...if u read the picking a sub sticky on this site itll say that its about the rms not max =) i didnt no about this site when i did mine...shame on me...but now that ive been reading this site for however long it is...ive read pretty much every how to article...youd be amazed wut you can learn froums...if you want more on fiberglassing try fiberglassforums.com sorry dont know how to hyperlink in here...and i cant remember the html code to do it....hope ive helped

kev

thnks everyone. i will go with the one speaker in the correct box.

hey i went back and redid my box and it now has 1.945 cf of airspace. do you guy's think that it's enough to run two in the same airspace? or would i still be better off running one?

No, if you have this much airspace, usea pair of the Pioneer shallow mount 10" or 12" subs and reap the rewards that they will offer. All things being equal, two subs have more output than one.

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Top Secret, I can tell you but then my wife will kill me.

but i already have the audiobahns and i don't really want to buy more speakers.

Then only use one, and build the box the correct volume for that one woofer... They won't sound good enough as it is, don't further destroy what little "sound quality" they MIGHT have by putting them in a wrong box.

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

Please just take the advice of everybody here...use the correct size box. Ever heard the phrase 10 pounds of poop in a five pound bag? Replace the five pound bag with your 1.945 box and replace the ten pounds of poop with your audiobling...Did i mention please use the correct size box? Ultimatly I will NEVER be in your car, so do what you want, but please either take the one sub advice or buy a bigger car, build a bigger box, and put your 10 pounds of poop into a ten pound box. At least five people have told you the same thing... NOBODY has said to go ahead and cram them into that tiny box... I was never good at math, but I think 100% of the advice givers are against the "fat man in a little coat" box design.

sarco..."fat man in a little coat?" are we a fan of the late chris farley?

well they give a wide range in airspace 1-2 cf. so how big should i make the box for one sub? i take it no one likes audiobahn although they have won many competitions. i guess they just bought there way to a win. so tell me how much airspace it should be for the best sound for one crappy audiopoop 12.

i haven't seen them win any competitions lately

I miss chris...sorry back on topic...

If I get a wide range for something and can't get in contact with the manufacture and nobody else seems to know, then I will hit right in the middle. 1.5? When you reconfigured your box did you take into consideration the displacement of the woofer? if not then the 1.945 on that you have would probably fit into the right range. The only hands on audiobahn experiance has been putting them into a prefab box. I have never had anyone want a custom box for their subs. You can always make it too big and then just fill it with spray foam insulation until it sounds good.

cool thanks for the help. i may just sell them and get some different sub's. what do you guy's think would be two good one's for this airspace? i don't want to break the bank just something pretty decent. which one sounds better tens or twelves?

steve...to 12s will push more air..thus more bass...like i suggested before...shallow mount pioneer 12s would be ur best bet...you said you have a total of very close to 2 cubes...each of the shallow mounts air designed for an air space between .5 and 1 cube...therefore two would have to be at 1-2 cubes...i suggest 2 of them...but thats just me...i may be running two of them in my dads 88 c/k standard cab pick up...seeing as there is only a few inches back there =)