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Airspace for 3 12's

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I have two ol'skool fosgate 8 ohm 12's and one mtx terminator 12. I know craptastic, its stuff i have left over from years of being a packrat. I wanna put them under the seat in my titan. I can get a box that upon completion and displacement will be about 1.2 sealed. If i install all three of these subs in this box undivided will they fight each other or cause cancelations? I can't get enough airspace to divide the box up. I don't even know if this is making any sense.

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is it the sensitivity that would cause problems cause im not looking to get a huge output or even a award winning sound, i just have three 12's hanging out and some left over mdf

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They are different equipment made by different companies, companies don't try to match drivers with other companies.

Put the two 12's you have and sell the extra one to the kid down the block.

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Just use one of those subs and sell the others, it is not good to mix subwoofer so dont do it.

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Just use one of those subs and sell the others, it is not good to mix subwoofer so dont do it.

Well if the "two ol'skool fosgates" are the same then he should use them and ditch the other one.

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im am still not getting a reason why not to do it? what is the technical reason?

There alot of reasons. They do not have the same t/s parameters. One might be louder than the other and it will sound retarded. One will have more Xmax and it will just be mess.

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most amps do not like 3 subs either. 1, 2, or 4. but not 3. screwed up ohm load will drive a amp crazy.

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If the MTX is not 8 ohm, they will receive different amounts of power. Also, the tonality of the subs will be different, frequency response will be different, etc. It will sound weird.

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most amps do not like 3 subs either. 1, 2, or 4. but not 3. screwed up ohm load will drive a amp crazy.

:blink: Amplifiers do not care what the ohm load is as long as it is above the minimum recommended load. Whether it be 1.33 ohms, 1 ohm, 2.66 ohm, or 2ohm the amplifier doesn't care, sure it would like higher loads so it can be more efficient but it doesn't care it it is an odd numbered ohm load or not.

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