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jl audio 13w7

hi everyone, a guy in my town has a couple new subs jl audio 13w7 for $1000 (subs only no cabinets)

i dont know anything about diy subwoofers.
i was going to use a jbl synthesis s400 to power these ( i think it might be a little weak for these subs.

are these great subs? will they compare to jl fathom series subs?

also, do i just build a six sided cabinet for each sub?
excuss me if my terminology is off, but do i need a dead passive woofer on the box aswell? how about extra wood inside the box to channel the airflow? is the 13w7 a car sub or a home theater sub?

please help me with your opinions.
thanks so kindly
nineballg

Showing 2 responses by nineballg

nineballg OP
35 posts
 
thanks bradearles for your response.
one thing that still confuses me is the ohm factor.
i believe that jl audio 13w7d1.5 is their exact model number. my jbl amp has a 4ohm and 8 ohm switch on the back of the unit.

i think the jl 13w7d1.5 has a lower ohm the 4 it might be 3 or 2 (im not sure)

will the ohms be a factor? will it damage my amp or will the subs get damaged from my amp? i obviously dont understand how the ohms work.
thanks alot
nineballg OP
35 posts
 
i just found out that the jl audio 13w7d1.5 are dual 1.5 ohms. im not exactly sure what that means tho.
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