I was on another forum and this guy was giving free box dimensions so i thought I'd pm him and see what he would come up with for my 13Ov.2's. Here's what he said... Good Morning, well these subs need a bit less chamber space so the enclosure will be a bit thin, based on .35^3ft sub & bracing displacement, and .75" thick MDF, build it 14"H x 49"W x 14.25"D, this will give you 4.381^3ft gross vol. Build your port, 12.5" x 3" x 20.1"long@35Hz. This will put you at 3.565^3ft net yield. This design will do the job very well. How does that look? does it sound right for what the 13Ov.2's need? or should I pay no attention to it? comments....
Looks like a well thought out box. Personally I might tune a little higher but the most important factor, size is there. I would go with that design as is.
should i put the port in the middle instead? subs and port are firing to the rear. I was thinking about just putting the port in the middle but what kind of changes would i have to make in order to do that?
I know that you are aware that i'm really in the dark about these things. so if i want the vent in the center of the box i would do it 12.5" x 3" then have two 10.5" boards for the port2 measurements? is that right?
13Ov.2 Subwoofer Enclosures Spec 13Ov.2 Subwoofer Sealed ( small ) 0.7cF Sealed ( ideal ) 1.0cF Sealed ( large ) 1.25cF Vented ( ideal ) 1.5cF Tuned to 30Hz Vented ( DDLoud) 1.5cF Tuned to 35Hz Specifications Theile Parameters Qts: .28 Qes: .30 Qms: 3.3 Fs: 21 Hz Re: 8.3 Vas: 176 L Mms: 195 g Bl: 21.7 T*m SPL: 89.1 dB Sd: 545 cm^2 Xmax: 18.3 mm Voice Coil: 62.5 mm Magnet Width: 6.000" Cutout Diameter: 11.000" Mounting Depth: 6.600" Weight: 25 lb Total Height: 7.600" Displacement: .06 ft^3 Outside Diameter: 12.375"
Looks almost dead on, he must have used bassbox. Do you have 49 inches across in your trunk? seems too big to me. I can make a smaller box if you need it.
I'm sure it will fit. the width of the expedition is 49". The box is 48". I did the measurements twice to make sure. lol I'll be using an eD NINe.1 for the subs. 2 13Ov.2's DVC 4ohm. so i'll run them at 1ohm. Everything should be here in June. They were all shipped out last week. Takes a month to ship them over here. I'm going crazy just listening to my 2 coax speakers in the rear doors... After i took out the amp and sub in my car (sold it) I never got around to connecting the the components up front.
