Moreno93 Posted May 12, 2015 Report Share Posted May 12, 2015 So i've been brain storming for a while on what i wanted to do to my truck, went from 4 8" subs under the seat to 2 Fi Q's in the back without a seat, to now back to under the seat. But running two HDS208's in a ported box in under the seat. However i want the port facing forward, i've seen ports done with boxes under the seat, but they have always been to the side. Or they were sealed. I've drawn out a rough idea of how i want it. But i don't know if it's possible. Measurements incase you can't see/read them on the picture. From side to side, 20" - 14" - 20" Front to back 12" Top to bottem starting from the back 8" - 10" at the front of the seat. Looking for Port tuning to be around 32-35hz. Yellow highlighted lines = measurement lines Green highlighted lines = Amp rack Pink highlighted lines = Perimeter of box Silver dots on top part of amp rack = Plexiglass Couple questions i have with this box, one is where can i put the ports? Do i have enough volume for the subs. Comments concerns? Mounting Specs:• Cutout - 7.375"** • Mounting Depth - 5.5" • Outer Diameter - 8.53" **May need to notch for the terminalsT/S Parameters:* Piston Diameter = 161.9 mm* f(s)= 44.41 Hz* R(e)= 1.15 Ohms* Z(max)= 11.28 Ohms* Q(ms)= 5.785* Q(es)= 0.660* Q(ts)= 0.592* V(as)= 4.393 liters (0.155 cubic feet)* L(e)= 1.12 mH* n(0)= 0.06 %* SPL= 79.55 1W/1m* M(ms)= 174.10 grams* C(ms)= 0.07 mm/N* BL= 9.22 Link to comment Share on other sites More sharing options...
Eric Posted February 13, 2016 Report Share Posted February 13, 2016 did you ever build a box? I'm wanting to build an under seat box for my 99 chevy silverado and am looking for ideas. Link to comment Share on other sites More sharing options...
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