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Anyone have optimum ported box specs for 2 type R 12s.

 

Bronze Member
Username: Hootz

Saskatoon, Saskatchewan Canada

Post Number: 18
Registered: Oct-05
Anyone know of tested box specs for 2 type R 12s that sounds good?
 

Gold Member
Username: Rovin

Trinidad & T...

Post Number: 2366
Registered: Jul-05
i ordered 2 for myself & usually u get a spec sheet when u buy a new sub .....
 

Silver Member
Username: Bestmankind

Los Angeles, CA USA

Post Number: 372
Registered: Oct-05
optimum vented box

external dimensions ------------- 18" x 13.5" x 16.5

gross internal volume ----------- 1.7 cu ft

vented area (dimensions) ------ 12" x 1.25"

vent length -------------------------- 22.75"

vent displacement ---------------- .305 cu ft

net internal volume (Vb) -------- 1.3 cu ft

F3,ripple,Fb ----------------------- 33hz, 2.5db, 36hz

based upon 3/4 baffle thickness, with opening cut approximately to gasket inner diameter.
 

Bronze Member
Username: Hootz

Saskatoon, Saskatchewan Canada

Post Number: 24
Registered: Oct-05
So with 2 subs, are you best to just double the width, then split it into separate chambers? Or keep it open?
 

Bronze Member
Username: Hootz

Saskatoon, Saskatchewan Canada

Post Number: 25
Registered: Oct-05
They'll be running off one amp, so they should be getting equal wattage and everything. I would split the two off unless there's something to gain by keeping it open....
 

Silver Member
Username: Bestmankind

Los Angeles, CA USA

Post Number: 374
Registered: Oct-05
those are the specs for one sub so if you have two then build a box with separate chambers with each chamber having those specs.
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