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Ok guys.-yall are LUCKY...

Since I am A BASS NERD...I'm ALL ABOUT BASS, SUBS, ENCLOSURES, and speaker  characteristics. I like how subs work/act in car & home audio, and thus I spend a GREAT DEAL OF TIME reading crappola about that subject. I do this so that I will (hopefully) be a better box builder and system designer.

Truthfully this is the only way any of you will get better at it as well and the fact that you are reading this is a VERY GOOD SIGN.

Part of the reason I do as much checking up on the subject is the VAST amount of CONFUSION and testimonial garbage out there (and yes some here too, see above^^).

So here goes my effort to clear some of it up from my adventures in being a BASS NERD.

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.

mixing sub sizes for SPL is not a good thing.  if his intention is for SQ then by all means build away.  remembering to keep different sizes in separate chambers.  but i would recommend going to 2- 10's and 2 15's as the 10's will produce a better sounding higher bass note than the 12's.  12's and 15's can be too close in freq response to even dick around with. go with a good set of 10's and 15's tune them differently and play away.  just remeber your SPL score will hurt some because of it.  but your SQ can go up with the fuller range.

^^^^I think He's on the same page as me but can say it w/ out writing a books worth.

In SPL only applications you pretty much want the "one note wonder" or super efficient over small freq range so yea just get 4-18's or 12-12's all enclosed the same and a buncha power and ta-da.

Hopefully that clears up some of the confusing CRAPPOLA out there. I know it took me forever to even fig out where to find any of the answers to this one but I just kept going back to Car Audio & HT/AV sites w/ forums and searching Different woofer size/mixing Q's.

ALSO-If you think I sound like a douche bag know-it-all: FLAME away! I would be more than happy to know if I'm wrong somewhere, and why, and make sure I'm not ADDING to the pile of crappy misinformation out there. Its hard enough to find answers in the muddy waters of ROE/CA.com/Termpro etc.

COOGLE SAID:"bro thats how we got where we are... buy making messes ...... i still learn all the time you just gota be willing to ruck up some shit" "In order to attain the impossible, one must attempt the absurd." ~ Miguel de Unamuno"One machine can do the work of fifty ordinary men, but no machine can do the work of one extraordinary man" -Elbert Hubbard"A proud man can learn humility...but he will be proud of that too" ~I forget who.I'm far from perfect and I know it better than anyone, but I hope to be good at what I do, when I do it...Installs I've done:My Integra: http://www.stevemeadedesigns.com/board/ind...?showtopic=3161The Lexus : http://www.stevemeadedesigns.com/board/ind...?showtopic=1535Law's Maxima: http://www.stevemeadedesigns.com/board/ind...ic=5568&hl=Jeff's 2500HD: http://www.stevemeadedesigns.com/board/ind...ic=5382&hl=Acura RSX-S: http://www.stevemeadedesigns.com/board/ind...?showtopic=3142Z-32 300zx: http://www.stevemeadedesigns.com/board/ind...?showtopic=34602004 Civic 4dr: http://www.stevemeadedesigns.com/board/ind...?showtopic=8190Trunk/Corner Box: http://www.stevemeadedesigns.com/board/ind...c=16036&hl=1969 Chevy C-10: http://www.stevemeadedesigns.com/board/ind...c=20319&hl=Seat-Back AMP-RACK How-to: http://www.stevemeadedesigns.com/board/ind...ic=9428&hl=Bunch of subs still for salehttp://www.stevemeadedesigns.com/board/ind...l=lsn2meboom916"It's game night...we're playin......sex."~Quagmire"When disneyland started it was powered completely by orphan children running on treadmills to generate e-lectrissty…and today, them children are New York Yankees". ~Dale Gribble"Fill it with ice...then pour it up to the top of the ice...& Shut da Fu** up!" ~Urs truly.

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wow...great read...this makes this topic sticky worthy

NoFearX18 said:

Nick will bang just about anything.....LMAO....pun intended

On 4/13/2010 at 9:51 AM, meade916 said:

i was like DAMN, Chode is hardcore! he makes james look like a friendly person LOL!

trainman0978 said:

I dont know who is worse with the buttholes Chode or Big P...

 

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Team Deadly Hertz / Team DC Audio / Team XS Power

2010 DC AUDIO MEMBER OF THE YEAR!!!

DuckretaryFEAR THE DUCK Durangho Chodes Blowthrough Build Youtube vids Muh Wife

 

Need DC Audio? Hit me up for pricing!!!

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Nice info man, very informative. Looks like you have a PHD in the field of typing!  :lol:

4 15" FI Q D2's in 12 cubes tuned to 32hz

1- T1000.1bd's

3 Maxx 29 deep cycles

4 runs of 1/0 gauge

-Big 3

-Trunk sealed off from the cabin

Custom 15.8 dual-volt switching MLA module

All in a CAR.

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Nice info man, very informative. Looks like you have a PHD in the field of typing!  :lol:

Glad if it helps. I know I hear that Q/argument enough i thought I should share my lil ideas...and I generally get carried away. Mojo's quote was way more concise but i was just writing as I thought it up, and I'm a friggin crazy ass aparently. I took so long to get it all out there he beat me to it.

& on the PHD....Sheeeit.

Nah I wish i did tho.

At least then I wouldtn't have to go back and modify EVERYTHING i type ever.

-I be forever typin: "jsut" instead of "just", "eb"=be, "swear"=swaer, & "are a" ends up "area".

I swear my fingers are dyslexic or sum shit. or else my brain be goin so fast my fingers  can't keep up. That's why we have the "modify" option. I live by that button.

COOGLE SAID:"bro thats how we got where we are... buy making messes ...... i still learn all the time you just gota be willing to ruck up some shit" "In order to attain the impossible, one must attempt the absurd." ~ Miguel de Unamuno"One machine can do the work of fifty ordinary men, but no machine can do the work of one extraordinary man" -Elbert Hubbard"A proud man can learn humility...but he will be proud of that too" ~I forget who.I'm far from perfect and I know it better than anyone, but I hope to be good at what I do, when I do it...Installs I've done:My Integra: http://www.stevemeadedesigns.com/board/ind...?showtopic=3161The Lexus : http://www.stevemeadedesigns.com/board/ind...?showtopic=1535Law's Maxima: http://www.stevemeadedesigns.com/board/ind...ic=5568&hl=Jeff's 2500HD: http://www.stevemeadedesigns.com/board/ind...ic=5382&hl=Acura RSX-S: http://www.stevemeadedesigns.com/board/ind...?showtopic=3142Z-32 300zx: http://www.stevemeadedesigns.com/board/ind...?showtopic=34602004 Civic 4dr: http://www.stevemeadedesigns.com/board/ind...?showtopic=8190Trunk/Corner Box: http://www.stevemeadedesigns.com/board/ind...c=16036&hl=1969 Chevy C-10: http://www.stevemeadedesigns.com/board/ind...c=20319&hl=Seat-Back AMP-RACK How-to: http://www.stevemeadedesigns.com/board/ind...ic=9428&hl=Bunch of subs still for salehttp://www.stevemeadedesigns.com/board/ind...l=lsn2meboom916"It's game night...we're playin......sex."~Quagmire"When disneyland started it was powered completely by orphan children running on treadmills to generate e-lectrissty…and today, them children are New York Yankees". ~Dale Gribble"Fill it with ice...then pour it up to the top of the ice...& Shut da Fu** up!" ~Urs truly.

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^^^ i know exactly what you mean i have the same thing i say jsut or leik or seom...i hate it

NoFearX18 said:

Nick will bang just about anything.....LMAO....pun intended

On 4/13/2010 at 9:51 AM, meade916 said:

i was like DAMN, Chode is hardcore! he makes james look like a friendly person LOL!

trainman0978 said:

I dont know who is worse with the buttholes Chode or Big P...

 

thdsig2_zps7dd050e2.jpg

 

TDHsig1_zps90d6048b.jpg

Team Deadly Hertz / Team DC Audio / Team XS Power

2010 DC AUDIO MEMBER OF THE YEAR!!!

DuckretaryFEAR THE DUCK Durangho Chodes Blowthrough Build Youtube vids Muh Wife

 

Need DC Audio? Hit me up for pricing!!!

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Very informative. Thank you sir. I will have a little chat with my buddy and try to talk him into using two tens along with the two fifteens if he is still so excited to mix the subs.

www.AlabamaDrift.com04 Silverado in the works

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yea, just make sure he knows how to cross em over so they are LESS likely to interfere w/ each other. Think "BIG component set".

COOGLE SAID:"bro thats how we got where we are... buy making messes ...... i still learn all the time you just gota be willing to ruck up some shit" "In order to attain the impossible, one must attempt the absurd." ~ Miguel de Unamuno"One machine can do the work of fifty ordinary men, but no machine can do the work of one extraordinary man" -Elbert Hubbard"A proud man can learn humility...but he will be proud of that too" ~I forget who.I'm far from perfect and I know it better than anyone, but I hope to be good at what I do, when I do it...Installs I've done:My Integra: http://www.stevemeadedesigns.com/board/ind...?showtopic=3161The Lexus : http://www.stevemeadedesigns.com/board/ind...?showtopic=1535Law's Maxima: http://www.stevemeadedesigns.com/board/ind...ic=5568&hl=Jeff's 2500HD: http://www.stevemeadedesigns.com/board/ind...ic=5382&hl=Acura RSX-S: http://www.stevemeadedesigns.com/board/ind...?showtopic=3142Z-32 300zx: http://www.stevemeadedesigns.com/board/ind...?showtopic=34602004 Civic 4dr: http://www.stevemeadedesigns.com/board/ind...?showtopic=8190Trunk/Corner Box: http://www.stevemeadedesigns.com/board/ind...c=16036&hl=1969 Chevy C-10: http://www.stevemeadedesigns.com/board/ind...c=20319&hl=Seat-Back AMP-RACK How-to: http://www.stevemeadedesigns.com/board/ind...ic=9428&hl=Bunch of subs still for salehttp://www.stevemeadedesigns.com/board/ind...l=lsn2meboom916"It's game night...we're playin......sex."~Quagmire"When disneyland started it was powered completely by orphan children running on treadmills to generate e-lectrissty…and today, them children are New York Yankees". ~Dale Gribble"Fill it with ice...then pour it up to the top of the ice...& Shut da Fu** up!" ~Urs truly.

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my old setup i had in my geo prizm i had 2 mtx 4000 10's n 2 mtx 4000 12's, had the 12's in the middle in a devided sealed box n the 10's on each side in sealed boxs n it wanged hard but after takeing the 12's out i found out that the 10's was louder than all of it put together, his best bet is to run 15's or 12's, or sell the 12's n get 2 more 15's n run 4 15's or sell the 15's n run 4 12's n be done with it cause a 10 will play louder than a 12 but not nere as deep, n a 12 will play louder than a 15 but not as deep but all of them together will be playin so many freq's that by the time u hear it its gunna be so fuked up ued end up stickin to mids n highs, if i was him ied sell the 12's n keep the 15's n put the $ in some good componits or somethin if he aint already got some n be the hell with mixin n matchin subs, but not to steal the thread but i was wondering if mixin n matchin mid speakers would u get the same varieble wit the cancelation or not really an issue beaing mostly the same freqs are beaing played? i just wondered that, good luck wit his system n bump on :D

here's a link to my system 99 toyota tacoma , 2 mtx 8000 1504's in a sealed downfire , 1000w memphis amp

here's a link to my other system my 90 geo prizm test car

heres a thread i got of new songs u can dl that are legal = Some Good Bangage/you Can Dl These Free And Legit

redblob.gifbouncing%20blob.gif2yooj7m.pngmodel14.gif

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mixing your mids will be similar to the subs.  however, the reasoning behind mixing is different in that certain mids play certain frequncies better than others. its like trying to get a 6 1/2 to play in the tweeter range.  you shouldnt do it.  most highend installs with multiple sized mids do so to reproduce frequencies they are missing.  they try to balance the freq response of their system.  kinda like flat-lining their RTA graph.

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