port area question

[thehardknoxlife 10+ year member]

My point exactly. You put way too much thought into what I said. Can you explain the Big Bang Theory also?

Oh BTW, I was joking, but I guess your ego wouldn't let you see that.

No, the CA.com way is exactly the problem you're exhibiting. Saying "No, stupid" would have done absolutely nothing besides get someone upset for no reason. By explaining how the enclosure works, you can therefore understand how what he reasoned was false. So it comes down to this: if you don't like "technical babble" which is simply how your box works, then don't read it. For those people who want to know WHY a larger port won't be "boomier", then they're free to read it. Following in ignorance is the worst way to learn new things.
If people didn't think too much, you wouldn't have 100% of the things that you use for granted every day, so think about that before you fire up your amplifier or try to crank your starter motor. Someone had to realize that if you put semiconductor pieces next to one another they'll go nuts and create depletion regions and if you run current through a wire it will create a magnetic field which can be manipulated to be used as a motor. Thinking too much is the solution to the problem on this website: thinking too little. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[PV Audio 5,000+ posts]

Not to thread-jack here, but I was wondering about port area and a bandpass.
People recommended something crazy like 80 sq in of port area for my bandpass...but I only had room for around 40 sq in of port. The sealed portion is 2 cubic feet while the ported portion is 2.5 cubic feet. The box sounds great, but has me wondering what it would've sounded like if I could've gotten that 80 sq in of port.

YOur tuning would have changed, and then you would have a completely different output bandwidth. If someone reputable designed it at 40 and someone just shouted out 80, go with the 40. Bandpass design, unlike sealed or ported design, is 70% intuition and 30% math.

 

[PV Audio 5,000+ posts]

My point exactly. You put way too much thought into what I said. Can you explain the Big Bang Theory also?.

You don't get it at all, do you? He stated something as a rule of thumb: larger ports are boomy, smaller ports are punchier. That's not true. I posted why that's not true. You thought me just calling him wrong and insulting him would have sufficed. It doesn't. Can the OP tell the difference between 12 and 16 in^2 of port? No. So no matter what way you look at it, the information given was wrong and I decided to inform him as to why it's wrong. So with that, you can kindly keep your negativity to yourself if you don't want to actually learn something and instead go along with fairy dust tips and tricks instead of what's actually been proven.

You know, it's almost upsetting to me that people don't want to learn things anymore. I go to school to learn: not to drink, party, sleep around, jump off of buildings into snow drifts (don't ask //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif ), but to learn so that I can enrich my knowledge. When it comes to audio, I don't know much, but what I do know I try and share with those who might be confused. If I can help a single person understand what changing port area does to a box, then I feel that I've been successful. If someone doesn't care about that, then that's fine. So again, you can kindly keep your negativity to yourself because I couldn't care less.

If you think that it's arrogant that I'm merely sharing knowledge that I've gathered from texts and from people on here smarter than me, then again, please feel free to keep it to yourself. If you stopped and thought "wait a minute, he's actually going to explain why that rule is false instead of just saying it is, maybe that's a good thing", then maybe people wouldn't be running around saying 10" cones are "faster" than 15" cones or ported boxes are "lower" than sealed boxes or that putting a 10" and a 12" sub playing the same signal in the trunk is going to be beneficial. Maybe. All it takes is someone to actually want to learn something.

I learn dozens of new things about audio from people on here every day. I have long held beliefs that turned out to be false. I am nowhere near a technical genius nor elitist wannabe who thinks he knows everything. Rather, instead of going out into the trunk, I go into the books and read up on HOW and WHY things work instead of just stating that they do. So I say for the final time, if you have a problem with an informative post, or don't understand a term in it, then either don't say anything or ask to clarify. I am trying to help members understand their hobby from the ground up, not the other way around. If you take issue with that, then I guess that's your problem alone.

 

[PV Audio 5,000+ posts]

And if you think that I have an ego after having been the most ridiculed member in this forum's history, then you truly are the densest person posting here.

 

[thehardknoxlife 10+ year member]

You don't get it at all, do you? He stated something as a rule of thumb: larger ports are boomy, smaller ports are punchier. That's not true. I posted why that's not true. You thought me just calling him wrong and insulting him would have sufficed. It doesn't. Can the OP tell the difference between 12 and 16 in^2 of port? No. So no matter what way you look at it, the information given was wrong and I decided to inform him as to why it's wrong. So with that, you can kindly keep your negativity to yourself if you don't want to actually learn something and instead go along with fairy dust tips and tricks instead of what's actually been proven.
You know, it's almost upsetting to me that people don't want to learn things anymore. I go to school to learn: not to drink, party, sleep around, jump off of buildings into snow drifts (don't ask //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif ), but to learn so that I can enrich my knowledge. When it comes to audio, I don't know much, but what I do know I try and share with those who might be confused. If I can help a single person understand what changing port area does to a box, then I feel that I've been successful. If someone doesn't care about that, then that's fine. So again, you can kindly keep your negativity to yourself because I couldn't care less.

If you think that it's arrogant that I'm merely sharing knowledge that I've gathered from texts and from people on here smarter than me, then again, please feel free to keep it to yourself. If you stopped and thought "wait a minute, he's actually going to explain why that rule is false instead of just saying it is, maybe that's a good thing", then maybe people wouldn't be running around saying 10" cones are "faster" than 15" cones or ported boxes are "lower" than sealed boxes or that putting a 10" and a 12" sub playing the same signal in the trunk is going to be beneficial. Maybe. All it takes is someone to actually want to learn something.

I learn dozens of new things about audio from people on here every day. I have long held beliefs that turned out to be false. I am nowhere near a technical genius nor elitist wannabe who thinks he knows everything. Rather, instead of going out into the trunk, I go into the books and read up on HOW and WHY things work instead of just stating that they do. So I say for the final time, if you have a problem with an informative post, or don't understand a term in it, then either don't say anything or ask to clarify. I am trying to help members understand their hobby from the ground up, not the other way around. If you take issue with that, then I guess that's your problem alone.

Whoa dude calm down. You obviously didn't understand my sarcasm, and your interest in my response is quite weird. I was simply implying the fact that the CA.com way is to insult someone without explaining anything. It was actually an applaud to your response. I wasn't insulting your intelligence, but I am questioning your ego.

 

[SicAudio 5,000+ posts]

now now guys don't fight over it i got the sarcasm point and yeah it is the ca.com way pretty pathetic in my opinion lol

and PV u have more knowledge than u think so i say let some ego out its good for ya //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[PV Audio 5,000+ posts]

Whoa dude calm down. You obviously didn't understand my sarcasm, and your interest in my response is quite weird. I was simply implying the fact that the CA.com way is to insult someone without explaining anything. It was actually an applaud to your response. I wasn't insulting your intelligence, but I am questioning your ego.

I got my sarcasm detector from deal-extreme //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[Boomintempo 10+ year member]

YOur tuning would have changed, and then you would have a completely different output bandwidth. If someone reputable designed it at 40 and someone just shouted out 80, go with the 40. Bandpass design, unlike sealed or ported design, is 70% intuition and 30% math.

I guess my box came down to luck, and I got pretty lucky. Knowledgeable people told me 80 and I went with just under 40 because it was all I could fit.

Luck must've been on my side that day.