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Old 08-18-2012   #226
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Default Re: kickpanel speaker locations : pros, cons

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It's not Tchaikovsky. But it's still music that people like and that people want to listen to. Therefore, the goal is to meet that demand. When you let your audio system dictate the music you listen to, you've lost.
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Old 08-18-2012   #227
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Default Re: kickpanel speaker locations : pros, cons

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Originally Posted by kajun kreations View Post
I m sure you know that high freq. travels at a faster speed than lower freq. The higher freq always gets to you first, by putting the tweeter further away that the mid you create a mechanical time delay, the info from the tweeter now has to travel further that the mid so they arrive more equally.

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Old 08-18-2012   #228
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Default Re: kickpanel speaker locations : pros, cons

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Originally Posted by kajun kreations View Post
Hey Kelvin, What I mean is that the tweeters must in front of the mid, closer to the front of the car. I m sure you know that high freq. travels at a faster speed than lower freq. The higher freq always gets to you first, by putting the tweeter further away that the mid you create a mechanical time delay, the info from the tweeter now has to travel further that the mid so they arrive more equally.
or, there's always the argument...
sound originates at the voice coil and therefore the tweeter should be behind the mid so both of their voice coils line up. that one's fun.


nevertheless, I disagree with your statement. the speed of sound is constant. regardless of frequency. not unless you're talking about sound traveling through different mediums (and we're not here).

the "high" portion in "high frequency" is only in reference to how many times the signal oscillates in a given time period. f=1/t
the more times the signal repeats in a given segment of time (seconds), the shorter its wavelength and the higher its frequency.


wiki does a better job than me:
Frequency - Wikipedia, the free encyclopedia


I think I understand what you're trying to say, but still, I'd disagree with that. relative phase really dictates positioning here and when speaking about time domain, especially with long wavelengths, it's not as easy as lining up a passband because the difference in wavelength of a subwoofer can be anywhere from 13 feet to 36 feet long. try adding delay or spot moving a subwoofer to match up 80hz and see what happens at 30hz.
*not that this is really crucial, but it is a reality

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Old 09-12-2012   #229
 
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Default Re: kickpanel speaker locations : pros, cons

Folks reading this thread may enjoy this other thread I found recently...

Comb Filtering, Acoustical Interference, & Power Response in Loudspeakers

Be sure to click through the pages
Page 1: Comb filtering
Page 2: Audibility of Acoustical Interference & Loudspeaker Design Implications
Page 3: Loudspeaker Power Response & conclusions

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Old 09-18-2012   #230
 
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Default Re: kickpanel speaker locations : pros, cons

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You are welcome!

But now if you want to have a wider stage you got to push in your speakers into the frame! The further apart from each other the wider your sound-stage!




.
sorry for being late but I was finishing up the rest of my install and getting ready for school to start back.

They cant be moved back any further due to space constraints. When I am rebuilding (hopefully at the end of this year once I get enough info to venture into the 3 way realm) I will definatly send the mid as far in as possible.

So far so good, there is some compromise with width (as opposed to on the door) and bandwidth (I shifted my subwoofer lpf to try and compensate). I can live with it for the next few months.
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Old 11-26-2014   #231
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Default Re: kickpanel speaker locations : pros, cons

So i read the first 7 pages of this and i'm a little exhausted in all the info.

So quick question. Would using a 3 way component system work(sound good) if i had midbass in the door(insulated and all that jazz). A-pillar tweets and midrange crossfiring across the cabin

So id have the kickdrum and midbass at the door and id have the path lengths maximized.


Also using a deh80-prs headunit so id have a decent amount of eq'ing and TA available.

This would be for a two passenger optimal set up.
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Old 11-26-2014   #232
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Default Re: kickpanel speaker locations : pros, cons

Quote:
Originally Posted by Jscoyne2 View Post
So i read the first 7 pages of this and i'm a little exhausted in all the info.

So quick question. Would using a 3 way component system work(sound good) if i had midbass in the door(insulated and all that jazz). A-pillar tweets and midrange crossfiring across the cabin

So id have the kickdrum and midbass at the door and id have the path lengths maximized.


Also using a deh80-prs headunit so id have a decent amount of eq'ing and TA available.

This would be for a two passenger optimal set up.

Yes you can achieve good sound, also depends on your car and it's proportions, cross over and slopes, your body size and how far you sit in the car, having the Mids on the a-pillars usually works with a small depth and width penalty.

D.

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