Ive Been Given The Job Of Building A System In A Suburban

[PaulO2288]

i think it looks fine.

but w/e i dunno exactly what were gonna do but hopefully he gets me the money so i can start on it.

Like I said not only does it look bad but you will have major cancelation!

[KWP369]

i'm goin go quote amatt85 on this one ok from another thread on this same subject

id never do it. i think it looks goofy as hell. i mean it will probably be loud, but there are way too many factors to consider. i mean would u run different size tires on a vehicle? sure it will roll, but it will look stupid and ride like shit.

heres the link to the thread Mixing Sub Sizes

[KWP369]

here is a complete right up from LSN2meBoom916 it can be done but u must know wat ur doin and not just throwin some different size subs in a box and callin it done

MIXING SUBWOOFER SIZES:

It can be done, and it can sound good/loud and clear and even BETTER than not mixing them.

It is BY NO MEANS easily done, so unless you have: A PHD in the Field of Acoustical engineering, A magical Ouija Board with all the answers, Or a CRAZY amount of LUCK, I would not even attempt it w/ out MUCHO RESEARCH.

From what I have read/seen/heard/figured out myself, mixing subs is just like mixing any other speakers in a system, the only difference is that subs GENERATE LOTSA FORCE.

Thus, they can have an impact on how other speakers/subs act when sharing airspace (BE-IT ENCLOSURE AIRSPACE or simply INTERIOR CABIN SPACE-i.e. same car/vehicle).

So the key to mixing and matching speakers/subs is really dependent on your ability to predict HOW those speakers/subs will interact in the same area (here's where the PHD comes in)

So to figure out "how 2 speakers/subs/assembly of moving parts" motivated by the "magic" of bipolar (+ & -) electricity (I know, it's kinda scary) will interact with each other and have any amount of accuracy...you kinda gotta know ALL the characteristics of ALL the parts and materials involved or do A RIDICULOUS amount of testing to form enough "generalizations" as to the outcomes of different combinations of parts so that you can say "this will work best/well/not suck".

That said, the main thing involved in successfully mixing/matching subs is being able to predict how those products will work w/ each other and that can be PLANNED as long as you know all the stuff I just said ^^^^^.

If you have a small sub that hits higher frequencies better than a big sub and a big sub that hits super low frequencies with ease, the ideal would be use them together and just tell them to only do what they are good at. The prob with that is in CAR AUDIO you are really limited on space and can't have 70 speakers each playing a tiny range fo freq's and you have to let a sub/speaker cover a wider RANGE of freq's.

It's just like A COMPONENT SET of midrange speakers. Think about GOOD comp sets. The XOVER IS KEY. It tells each super specialized speaker what freq's to play and all that impedence matched/hi-tech X-over talk that means your MB Quarts and Focal mids will sound awsome and much better than ur sony xploders and audiovox garbage.

So If you limit your mixed & matched subs, and only let them do what they are good at while keeping them from trying to do each others jobs (play the same freq's) you can actually build a SUPER EFFICIENT setup, that sounds better than a "normal" one.

If you crossover the subs/speakers at different freq's you should have no OVERLAP and thus no probs at all. Like maybe your 15's (or biggest woofers present) playing @10hz-35hz, the 12's @ 35hz- 50hz, 10's @ 50hz-80hz and some 8's @ 80-200hz, and your mids on up from there. you should have the most balanced system EVER.

Thats exactly how CRAZY home audio guys do it and they get some CRAZY sound outta a setup like that. The only diff is in a HOME audio environment you have less PRESSURE cuz the room/interior cabin is so much bigger and less limitations on space taken up by a sub box for 1-12" that's the size of ur fridge. It happens.

[East Texas]

http://www.woofersetc.com/index.cfm?fuseac...Product_ID=6073 x1

http://www.woofersetc.com/index.cfm?fuseac...Product_ID=6115 x2

I have bought from woofers etc 4 times without a hitch....just a suggestion

[Forevrbumpn]

This topic has popped up so many times, ive said it before, and still stand by it, but

larger subs, seperate box, tune at a set number like 30hz

the smaller subs, seperate chambers, and tune 1octave highr, like 60hz

low pass the larger sub at 45hz

hp the smaller sub at 45hz

low pass the smaller sub at 90hz

Bamn, there ya go

recipe for a descent sounding multiple size sub set up

But having 4 of the same, or 2 of the same will work much better

Throwing 2 different size subs in a box, no seperation, or difference in equalization will st the subs off to have a mono tone bass, almost like a burp car

And the smaller woofer will definitly blow, no doubt about it

in seperate chambers, multiple size subs, the resonance from each size speaker will come together to make 1 tone, again like the second one

And you dont need a PHD to understand how this works, just a understanding of octaves, and wavelengths

simple stuff

[qu1cks1lver56]

well theyre going in a sealed box so they will have seperate chambers.

but he's lookin for something that has sq and still gets decently loud, he's not lookin for 150+ db.

something that does 135-140db and sounds good doing it will suit him just fine.

[LSN2meBoom916]

Amen Brother....directed at kwp369 and Forevrbumpin.

Edited March 25, 2008 by LSN2meBoom916