What is the max depth you can make a ported box

[vehementSPL 10+ year member]

I can read fine. And I'll mention it when ever its a valid point. Like any time you use it to try and prove anything, even not being an idiot. If you post something that is idiotic, oh lets say thinking you cant build beyond 36" in an enclosure, you being a 'MECA champ' doesn't make your statement any less stupid. So, your MECA status really means squat to your points. Bring it up for no good reason, and expect to have it thrown back at you. If someone asks about MECA champs, or a specific question involving said sanctioning body, Im confident you know more than I and I would defer to you. But just about anything else, Im really forced to question your knowledge base. Perhaps you would be better off assuming you are a complete idiot, and start the whole learning process over again. I think that might work out better for you in the long run.
"What if I made the first part of the box 10x10x10. Then the rest of it 5inch x 5inch x 14 feet (3 cubes total) Stupid design but would this affect the output of the box?"

Certainly it would affect the performance of the box. Enclosures, particularly vented enclosures, are susceptable to having 'dead space' in them if the dimensions are not considered. Air pressurizes inside the box (or depressurizes), causing air to flow in and out of the port. The sleaker is the piston creating the pressure, the port is the relief valve. If there is a section of the box so small, or so far from the speaker and port, it becomes dead space that this compression/decompression to air movement interaction bypasses it, effectively eliminating this area as an effective part of the enclousre, thereby reducing the internal volume of the box.

Now, is this in any way saying you cannot build a box beyond 36"? Maybe to a legal retard, but to the rest of us we realize this means its not the 36" dimension that hurt the capabilties of the box, it was the odd shape/air spaces within the box that caused the problems. Nice try, was still a really elementary question to ask, for someone who supposedly has a good amount of experience with this stuff. And this attempt at saving face by trying to find a situation that would make your statement true, just shows you STILL dont get it.

I guess it was just lucky your MECA box never needed to be bigger than 36" huh? //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Ok so the 36inch is out the door. But there is a limit on dept depending on shape. So I guess my first question should have been. I have a box that is going to be 12 internal inches tall 31 wide and 50 inches deep. is it possible that it is too deep for the 12 inch ratio? or what prob would become too deep

 

[audioholic 5,000+ posts]

Ok so the 36inch is out the door. But there is a limit on dept depending on shape. So I guess my first question should have been. I have a box that is going to be 12 internal inches tall 31 wide and 50 inches deep. is it possible that it is too deep for the 12 inch ratio? or what prob would become too deep

The main thing is not to isolate any areas of the enclosure. Ideally place the speaker at one end of the box, and the port opening (inside the box) at the other end. This way the speaker better utilizes the entire space within the enclosure. Whether or not this will make an audible difference, or even noticeable difference to a mic, would depend on many factors.

 

[mile098 10+ year member]

i could be off here completly and b4 the flamming starts no i dont know the reson as to why this is, but reading a number of forums ive come across an information that states that the 'golden' ratio for an enclosure is 0.62:1:1.62..now maybe some1 with more knowledge could say is that right and if so why that is...