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1 15'' and 2 10''?


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seb49512 
Member - Posts: 7
Member spacespace
Joined: September 11, 2006
Location: United States
Posted: December 07, 2006 at 3:37 PM / IP Logged  
If i were to get one 15 inch sub and two 10 inch subs, and place them in a fiberglass box with the 15 in the center and 10's on both sides, would this sound terrible? what if i made each one a seperate enclosure inside the box? and would i need 2 different amps or just a 4 channel amp?
jeffchilcott 
Platinum - Posts: 2,483
Platinum spacespace
Joined: April 11, 2002
Location: United States
Posted: December 07, 2006 at 4:22 PM / IP Logged  
i would highly go aginst it, making woffers of diffrent sizes and barands ect are not wise.     alot of time it will lead to alot of cancelation issues and poor sound.
go with the 2 10's in the proper enclosure, sell the 15 and put the money towards other things you might need
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aznboi3644 
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Joined: May 01, 2006
Location: United States
Posted: December 07, 2006 at 4:29 PM / IP Logged  
I'd go with the one 15
oscarnl86 
Copper - Posts: 84
Copper spacespace
Joined: July 07, 2006
Location: United States
Posted: December 07, 2006 at 7:17 PM / IP Logged  
i say just go with the two 10 in a ported box
i know some stuff and what i dont know ill make it up feel free to ask
haemphyst 
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Platinum spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: December 07, 2006 at 9:45 PM / IP Logged  
If you are planning on crossing them over at the same points, go for it... PERFCTLY doable, with no issues whatsoever. Different crossover points? Choose one or the other.
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."
stevdart 
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Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: December 07, 2006 at 10:06 PM / IP Logged  
My take on a question like this is: usually, when the poster asks about mixing different subs/sizes, it's because he has them on hand and wants to put them to use...maybe ebay buys went awry, something like that. Because you also asked about powering these subs, this seems like the case with you as well. I suggest you find an example, already built and put to use, of such an arrangement and listen to it first. If you have already done your homework, what did you think? Was it attractive and did it sound great? Or did it look like a mishmash of leftover components that were mixed together? Did it look and sound like the next greatest thing in car audio, or did it look and sound like somebody should have hired a professional and stayed out of the DIY car audio business?
Set your priorities first. Decide how much space you can afford to give up in the car for subs. Decide how much amplification you can afford to provide (and more means an exponential increase in overall costs including extra damping, heavier wiring, larger fusing, better battery, more powerful alternator...you get the picture).
If you are truly not the next great inventor to come along, go with a system that is tried-and-true. It is common to see a set of 10" subs, as well as it is common to see a single 15". Each would occupy a pretty fair amount of enclosure space; combined, quite huge, most likely...and not something you'll see on a showroom floor.
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
specialaudio 
Copper - Posts: 58
Copper spacespace
Joined: April 15, 2006
Location: Canada
Posted: December 11, 2006 at 7:45 PM / IP Logged  

Dont go with both, what kind of music do you listen too?

dependin if it fast up tempo tunes, go with the 2 10s

if its slower deep bass, the 15

93' Cutlass
haemphyst 
Platinum - Posts: 5,052
Platinum spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: December 11, 2006 at 8:39 PM / IP Logged  
specialaudio wrote:

Dont go with both, what kind of music do you listen too?

dependin if it fast up tempo tunes, go with the 2 10s

if its slower deep bass, the 15

And why do you believe this statement, specialaudio? Do you think a 15 can't be as "fast" as a 10? Wow! Doesn't understand fuses OR transient response. I'd do some searching on the forum, KNOW the people you are trying to answer AGAINST, well before you place ANY MORE responses here. I have read two of your posts already in 5 minutes and they are BOTH misleading and incorrect.
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."
aznboi3644 
Gold - Posts: 2,600
Gold spaceThis member consistently provides reliable informationspace
Joined: May 01, 2006
Location: United States
Posted: December 11, 2006 at 11:04 PM / IP Logged  
specialaudio wrote:

Dont go with both, what kind of music do you listen too?

dependin if it fast up tempo tunes, go with the 2 10s

if its slower deep bass, the 15

Here is a paper you should read
http://www.adireaudio.com/Files/TechPapers/WooferSpeed.pdf
specialaudio 
Copper - Posts: 58
Copper spacespace
Joined: April 15, 2006
Location: Canada
Posted: December 12, 2006 at 11:38 AM / IP Logged  
wow, cool it over there...
im just putting my opinion here,
that is more or less what ive been taught,
if its wrong fine, sorry don't have as much experience as you and i will read the paper.. thanks
93' Cutlass
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