Build a box for me $$

why do you say that
its tuned to 35Hz like JL specs say and just a bit bigger on ^3ft than they recomend

i think it was .5 AFTER dis. is that right Phil
Wayne,

After subwoofer and port displacement, the net volume is EXACTLY . 51 cu.ft.

Listen, I'm not going to get into a pizzin contest with what who says " will or will not sound good " given their basing that opinion " solely " on the design.

Wayne, you'll be the judge and only you, once the subs are in the box and installed in the truck and fire it up and tweak the system settings - then and only then your going to be satisfied or not.

 
Wayne,
After subwoofer and port displacement, the net volume is EXACTLY . 51 cu.ft.

Listen, I'm not going to get into a pizzin contest with what who says " will or will not sound good " given their basing that opinion " solely " on the design.

Wayne, you'll be the judge and only you, once the subs are in the box and installed in the truck and fire it up and tweak the system settings - then and only then your going to be satisfied or not.
thats true im saying itll sound good b/c its designed based off JL spec sheets for the port area which i think is a lilltle larger than JL speced and also .16^3ft larger than speced

if i doesnt sound good it will be of my own fault b/c this is how i wanted the box, i wanted a ported box in a reg cab ranger, with a place for my amp-and thats what it is

is there such a thing as a brek-in period or should i just play normal music at normal levels for a week then go to test tones and bass CDs

 
thats true im saying itll sound good b/c its designed based off JL spec sheets for the port area which i think is a lilltle larger than JL speced and also .16^3ft larger than speced
if i doesnt sound good it will be of my own fault b/c this is how i wanted the box, i wanted a ported box in a reg cab ranger, with a place for my amp-and thats what it is

is there such a thing as a brek-in period or should i just play normal music at normal levels for a week then go to test tones and bass CDs
Wayne,

IMO, this box should sound good for the subs, the port is " alittle " on the "wack" side of design given for how it had to be to fit for the tuning you wanted. Personally speaking, in the manner in which air moves or should I say is " excited " by the excursion of the subwoofer is a non factor as to how it's going to sound.

I don't recall how many watts each sub will be operating at, but, I can say this much, for the port area they are @ 300 watts is still well below the point when port noise would start to occur.

I made " d@mn sure " all corners that needed to be rounded over " were " rounded over before I put it together. All Joints are a as tight as 13 yr old virgin and the only thing that can/could screw them up is the FEDEX driver " dropping the box ".

 
ok dont get me wrong the craftmen ship of the box is great takes some skills to build a box like that... i just dont think u will get the full potential of those subs with that box design...... there is a lil more to box design then just makeing something fit

 
ok dont get me wrong the craftmen ship of the box is great takes some skills to build a box like that... i just dont think u will get the full potential of those subs with that box design...... there is a lil more to box design then just makeing something fit
Yes, true, there is more to design than " making something fit ", however, your basing your opinion on what you " think " and not on " what ya know ".

Just because a design " doesn't look right " does not mean it's not going to perform and function as it should.

The only opinion that matter's here is Wayne's once the it all put together, fired up and tweaked.

 
so how did u come up with the sq of port needed? for that particular design
How do you determine port area for given design?

Do you base it solely on the accepted " standard set of 12 to 16 sq.in. per cu.ft.? "

If that were the case here, than the port area should be 6 sq.in. minimum - 8 sq.in. maximum.

Or do you base the port area given max wattage applied to determine vent mach of said port to achieve the result which port noise will not occur below the threshold that is acceptable to achieve the function and design goals of the enclosure within the spec's and requirements?

The latter achieves what the customer wanted and is to the specifications and requirements as to design and function.

Not all enclosures are designed for use as " BassHead " applications and the customer is well aware of that, therefore the "assumption " is one that the enclosure will perform and sound like " azz ".

 
actually the port should take reference of the xmax of the driver and VAS of the driver as far as how much power..that would reflect on the size of the box.. and im not a bass head check my thread on diymobileaudio.com
The port does take into account the xmax, cone to excursion displacement and power = vent mach.

Now, way back when the arguments, debates and discussions were going on about vent mach, port velocity, laminar flow and all that good goofy business was " what is the acceptable ratio of air movement thru the port?".

The consensus was .20 meters per sec or 65 ft per sec, anything above those numbers was considered " too fa king high " which is total bullsh!t because that would mean the port area takes precedent over any other design element given the max size the enclosure cannot exceed or design limitations the enclosure needs to fit within the install.

However, conforming to the established " NORM's " means " one must adhere to and not deviate and anything other is subject to speculation ".

Specifications, Requirements, Fit, Function and Design = All Covered. Job Done.

Customer = The Final Word.

 
That box is going to slam and will keep bad03's legroom. This is something you rarely see in a regular cab Ranger - a properly specced and built dual ported box. I just wish I could hear it in person //content.invisioncic.com/y282845/emoticons/greedy.gif.5a53e6246569d7ab79867170f3b06629.gif

 
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