Quick RE8 Question

[bitwise 10+ year member]

I am building a downfiring box for under the back seat of an extended cab GMC Sierra, and was wondering how much space the speaker will need between it and the floor.

Thanks,

Dave

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[bonesninja 5,000+ posts]

I am building a downfiring box for under the back seat of an extended cab GMC Sierra, and was wondering how much space the speaker will need between it and the floor.
Thanks,

Dave

i would say hook it up measure how far it moves at your highest listening volume then add an inch and you should be alright.

 

[bitwise 10+ year member]

Well I dont have any amps yet hehe, and I am trying to design the box in autocad right now, so some other factors will change based on this measurement.

Thanks for the help though.. anyone else?

 

[bonesninja 5,000+ posts]

well you can check the manufacturers specs particularly the XMAX-thats the max movement of the cone, should be listed as one-way movement--usually in millimeters then add like 25 mm's to that .

 

[req 5,000+ posts]

just give it like 1 or 2 inches. theres no way a RE8 will move further than that unless it pops a cone.

 

[bitwise 10+ year member]

Cool,

If I give it 1" of clearance at the bottom, and assume the sub displaces .06ft^3 it gives me exactly .217 cubes for each sealed chamber. That is right on target with the RE specs. I know some people say to give these things more space.. I will have 4 of them, do you guys think it would be ok??

 

[bonesninja 5,000+ posts]

Cool,If I give it 1" of clearance at the bottom, and assume the sub displaces .06ft^3 it gives me exactly .217 cubes for each sealed chamber. That is right on target with the RE specs. I know some people say to give these things more space.. I will have 4 of them, do you guys think it would be ok??

sounds good

 

[bitwise 10+ year member]

actually i just recalculated and realized each sub will only be getting .2108 after .06 of displacement. Does anyone know how much an RE8 displaces? I would countersink the sub into the face of the wood.