4 12inch alpine type Rs what size box,tune,amp....

how much power 500-1000 each or more?
they can take 1500 daily. blazers dont have much room to work with. if you can, fit 8 cubes back there, otherwise a box like skip will work. i'd also do 4 4'' aeros @34 hz. did an install, 8 cubes @ 34 hz with 4 4'' aeros off 5k. it got sickly low and loud

 
In a Blazer, 2 15's might be better than 4 12's. You need to leave some open room back, it's not always best to fill up the entire hatch with subs. I've found the 15's be be a lot better than the 12's too. I was 1 dB louder with a single Type R 15 vs. 2 Type R 12's.

 
In a Blazer, 2 15's might be better than 4 12's. You need to leave some open room back, it's not always best to fill up the entire hatch with subs. I've found the 15's be be a lot better than the 12's too. I was 1 dB louder with a single Type R 15 vs. 2 Type R 12's.
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//content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif

 
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lol, I find this hard to believe as well,however, where you using the same amp on the 15 as you were on the 12's?

Maybe it was enough watts for the 15 butt 2 12's r's can handle more than 1 15.

 
You tests a tonnnnn more with that 15 though ya bastard.

Prolly just threw in 2 12s and burped it than took it out. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif:rolleyes:

I did a 48 legal with 2 12Rs and 40.1 @ 1ohm.

Now i have the 2 on 2 AQ2200s @ .5, and they are def. louder, no TL though to test....poor me

 
You tests a tonnnnn more with that 15 though ya bastard.
Prolly just threw in 2 12s and burped it than took it out. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif:rolleyes:

I did a 48 legal with 2 12Rs and 40.1 @ 1ohm.

Now i have the 2 on 2 AQ2200s @ .5, and they are def. louder, no TL though to test....poor me
Nope, I built two different boxes for the 12's, and I maxed out each box. Both boxes were totally different in design, but yet they did about the same score.

 
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