A Debate on the many different aspects of sound
Guest
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dukk, i answered all of your questions already, for your benefit i will repeat myself, my doors were tuned to 55hz, the idea was to get more output at alower frequncey than seald or ib, which i did, the vent at the back of the door worked very well, like i already said as well. by gettig more output at a lower freq from your front speakers you can use a lower x-over point on your rear woofers to try to make them not as noticable to the rear, that i said already as well
you very well may have a degree in in mechanical engineering,not exactly sure how that applies here. have you ever designed and built your own speaker? i havent so i rely on those that have to help me learn things, become more informed by those more informed. i trust the speaker designers that i have discuused this very thing with because they are more intelligent than you and i whenit somes to how a speakers works, they are very educated in the physics of sound and such, far more that you and i, are you saying that the people that make thier living desinging speakers are off base with there endorsment of venting your mids and such if popssible becasue of the benefits
i would be interested to know what theboy had to contribute that was deleted, theboy, pm me if you could with your input
you very well may have a degree in in mechanical engineering,not exactly sure how that applies here. have you ever designed and built your own speaker? i havent so i rely on those that have to help me learn things, become more informed by those more informed. i trust the speaker designers that i have discuused this very thing with because they are more intelligent than you and i whenit somes to how a speakers works, they are very educated in the physics of sound and such, far more that you and i, are you saying that the people that make thier living desinging speakers are off base with there endorsment of venting your mids and such if popssible becasue of the benefits
i would be interested to know what theboy had to contribute that was deleted, theboy, pm me if you could with your input
if you like it then do it. Who gives a rat's a** what anyone thinks. Every advancement in history has ultimately ended in trial and error to fine tune the product. Is anything ever truly in its final form, are we not always looking for a way to improve on the product. All the engineering does is speed up the process to finally get to trial and error for tweaking. Defro, all the power to you man, maybe someday all midbass and midrange drivers will be vented, maybe even Dukks, or maybe not, never know unless we try. Anyway, in the end all that matters is your listening pleasure and who cares what anyone else thinks.
500 Watt CAFz'r
Joined: Oct 2004
Posts: 870
Tried that Calculator on a couple of different speakers yesterday....seems to be very critical to have the test tones at exactly the same voltage across the test. Took a lot of tries to get similar results from the published specs.
No luck as yet getting the specs from the manufacturer....Seem to recall asking ID a while back for specs on their 6 1/2 " mids and got no help there either...was trying to build a sealed kick panel, with an chamber extending under the carpet.
The components I'm using this time are FPC-65 Fusions. I've so far got some wildly varying results on some of the specs, but I'll do a bit more testing and see if I can see what variables matter. Oooohhh variables!
So far it looks like a 2 to 5 db gain at 60 Hz, with real power handling issues below 40 Hz, and above 100 no difference.
Still haven't figures out how to build the port yet.
Did you say your ports are at the back of the door? I was thinking up front, but I am worried about noise. 2 1/2" x 6" port in a thin box (3 to 4 inches) with lots of panel close to the port, and close to the back of the drivers....
All the glass boxes I've built to date have had an MDF port built in along a flat wall.
No luck as yet getting the specs from the manufacturer....Seem to recall asking ID a while back for specs on their 6 1/2 " mids and got no help there either...was trying to build a sealed kick panel, with an chamber extending under the carpet.
The components I'm using this time are FPC-65 Fusions. I've so far got some wildly varying results on some of the specs, but I'll do a bit more testing and see if I can see what variables matter. Oooohhh variables!
So far it looks like a 2 to 5 db gain at 60 Hz, with real power handling issues below 40 Hz, and above 100 no difference.
Still haven't figures out how to build the port yet.
Did you say your ports are at the back of the door? I was thinking up front, but I am worried about noise. 2 1/2" x 6" port in a thin box (3 to 4 inches) with lots of panel close to the port, and close to the back of the drivers....
All the glass boxes I've built to date have had an MDF port built in along a flat wall.
500 Watt CAFz'r
Joined: Oct 2004
Posts: 870
like this
I had some room to work....how do I make a small, curved port fit in a 4" thim space without losing too much volume?
K that didn't work...how do I put a pic here??
[ February 22, 2005, 06:33 AM: Message edited by: Car Trek ]
I had some room to work....how do I make a small, curved port fit in a 4" thim space without losing too much volume?
K that didn't work...how do I put a pic here??
[ February 22, 2005, 06:33 AM: Message edited by: Car Trek ]
1000 Watt CAFz'r
Joined: Aug 2004
Posts: 1,267
As Westec said before 10 years ago you put your tweeter on axis with your mid,now the mid in the door and an A pillar tweet mount.What im saying Dukk is if you gave it try you would never go back instead of "THEY SUCK"!
Guest
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cartrek, you are on the right path, 2-5 db is alot of extra output at 60hz, you could do a slot port if the box is thin
the boy, good point, lots of things have changed over the years, the way speakers are installed, built desinged and so on, maybe the way we use these speakers could change as well
the boy, good point, lots of things have changed over the years, the way speakers are installed, built desinged and so on, maybe the way we use these speakers could change as well
Guest
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I don't think speaker design has changed much over the last 10 years. Sure their are different materials being used. But the design has not changed since the speaker was invented. Cars sound different today because it's way easier to get good sound, it's easier to hear good sound, and the techniques to get it are more readily available without all the BS "voodoo" of car audio past.
2000 Watt CAFz'r
Joined: May 2000
Posts: 2,406
Originally posted by DWVW:
I don't think speaker design has changed much over the last 10 years. Sure their are different materials being used. But the design has not changed since the speaker was invented.
I don't think speaker design has changed much over the last 10 years. Sure their are different materials being used. But the design has not changed since the speaker was invented.
Originally posted by DWVW:
Cars sound different today because it's way easier to get good sound, it's easier to hear good sound, and the techniques to get it are more readily available without all the BS "voodoo" of car audio past.
Cars sound different today because it's way easier to get good sound, it's easier to hear good sound, and the techniques to get it are more readily available without all the BS "voodoo" of car audio past.
