Making car doors more like speaker enclosures

For sealing holes. I honestly think fiberglass is the best and easiest way. I read a thread not too long ago about someone putting 10s in a door, having metal flex issues and fixing them by actually putting a layer of fiberglass on the outer door metal. Essentially making an enclosure everywhere but the window/clip seals

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The latter is what I'm hoping for. That's the way my last Alpine system was to me. Best quality car audio system I ever had! That's why I went with Alpine equipment again! I used Pioneer and Clarion in my teens/20's, then I had a very reputable (now out of business) install place here in STL do my 1994 Dodge Caravan "Baby" with an all Alpine system, head unit, power amp and 4 6x9 speakers. Now I've got a 12" Alpine subwoofer and four 6x9s and two 5.25 rounds, 100W per and 500W RMS into the subwoofer. I think it's gonna rock!
John Kuthe...
This equipment list screams "I'm going to sound like ****". You have never heard what I'm talking about.

 
Alpine recommends about a half a cu/ft cabinet for the 12" slim line subwoofer but the cabinet I'm having built is 18"x18"x9" outside with 3/4 in walls so it's larger than 0.5 ct\ft! I figure larger volume sealed subwoofer cabinet would be a good thing.


0.1 cubic foot sealed enclosure? What? Where? You mean the Boom Mats? Hardly sealed, there's a hole in the back where the wire comes in! And to allow speaker cone excursion, I believe.

I'm gonna foam tape sheets of formable aluminum sheets over the holes on the door making the whole inner door more like a speaker cabinet. I think this should work better than not doing it. And of course B-Quiet all over the place!

John Kuthe...
I was referring to this particularly ignorant response of yours to losisatool's explanation. You are talking to people who live and breathe audio since they were young and have competed professionally along with being up to date with the latest discoveries and technologies available along with all the inside scoop on every brand you can imagine. Then here you come in and try to put everyone's experience through the ground just because they dont bother posting up a chart for you to read. Rather than trying to document and explain stuff or in your case, daydream about wierd sh*t, people are out there achieving goals making extraordinary sounding setups and gaining actual hands on experience with what works and what does not which you severely lack.

Either you actually show some real world results with some MECA SQ competition wins under your belt or you can just talk so called " i'm an engineer" smack all day long and nobody will give a rats *ss about what you say or what you think because you have achieved NOTHING.

14459023_1260325330676675_1070517749_n.png


 
The latter is what I'm hoping for. That's the way my last Alpine system was to me. Best quality car audio system I ever had! That's why I went with Alpine equipment again! I used Pioneer and Clarion in my teens/20's, then I had a very reputable (now out of business) install place here in STL do my 1994 Dodge Caravan "Baby" with an all Alpine system, head unit, power amp and 4 6x9 speakers. Now I've got a 12" Alpine subwoofer and four 6x9s and two 5.25 rounds, 100W per and 500W RMS into the subwoofer. I think it's gonna rock!
John Kuthe...
The gear you have offers limited sound stage and imaging capabilities. Might want to get an alpine pxa-h800 processor and some alpine type X tweeters tweeters on the A pillars or sail panels and either disable the 6x9 coaxial tweeters or cross the 6x9s over and 3-4khz at a -12 db slope or so and fully time align the drivers. There's a big difference between loud and clean vs majestical next level sound.

My own personal preference along with many others do not like coaxials due to how they drag the sound stage down by your feet rather than having a proper concert on the dash. I have those same 6x9s but they are purely used for midbass duty temporarily. They sound mediocre as full range drivers with no separate tweeter for imaging.

 
The gear you have offers limited sound stage and imaging capabilities. Might want to get an alpine pxa-h800 processor and some alpine type X tweeters tweeters on the A pillars or sail panels and either disable the 6x9 coaxial tweeters or cross the 6x9s over and 3-4khz at a -12 db slope or so and fully time align the drivers. There's a big difference between loud and clean vs majestical next level sound.
My own personal preference along with many others do not like coaxials due to how they drag the sound stage down by your feet rather than having a proper concert on the dash. I have those same 6x9s but they are purely used for midbass duty temporarily. They sound mediocre as full range drivers with no separate tweeter for imaging.
VERY interesting! Yes I'm very familiar with the concept of active noise cancellation, one of the things the alpine pxa-h800 processor does! Thank you! This is the kind of good information I was hoping to get from this message board and it's participants. Yes I would like to go from just loud and clean to truly majestic if I can. You have given me a pointer to a whole new level of sound reproduction. Thank you! :)

And a question: how do you wire up all those ancillary tweeters? Just in parallel with the midrange drivers or through a separate additional amp?

John Kuthe...

 
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...

Either you actually show some real world results with some MECA SQ competition wins under your belt or you can just talk so called " i'm an engineer" smack all day long and nobody will give a rats *ss about what you say or what you think because you have achieved NOTHING.

...
Achieved nothing, are you kidding me? Not only was I an accomplished baker in the 1980s, I put myself through engineering school in the early 1990s while battling Multiple Sclerosis, went skydiving a few times before getting severely into whitewater kayaking and becoming an ACA certified whitewater kayaking instructor too! Then to get a reasonably well paying job hard to ourtsourse I put myself through nursing school and got my Bachelor's degree in nursing plus passed the NCLEX exam (state licensing test) first time!!

I don't give a rat's *** about all the audio competition ego battling crap that goes on, except it's kind of interesting to hear the excellent actual real world results folks can get out of all this expensive electronic equipment! I want some of that WITHOUT the ego!

John Kuthe...

 
Achieved nothing, are you kidding me? Not only was I an accomplished baker in the 1980s, I put myself through engineering school in the early 1990s while battling Multiple Sclerosis, went skydiving a few times before getting severely into whitewater kayaking and becoming an ACA certified whitewater kayaking instructor too! Then to get a reasonably well paying job hard to ourtsourse I put myself through nursing school and got my Bachelor's degree in nursing plus passed the NCLEX exam (state licensing test) first time!!
I don't give a rat's *** about all the audio competition ego battling crap that goes on, except it's kind of interesting to hear the excellent actual real world results folks can get out of all this expensive electronic equipment! I want some of that WITHOUT the ego!

John Kuthe...
Someone's full of themselfs^. //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

 
VERY interesting! Yes I'm very familiar with the concept of active noise cancellation, one of the things the alpine pxa-h800 processor does! Thank you! This is the kind of good information I was hoping to get from this message board and it's participants. Yes I would like to go from just loud and clean to truly majestic if I can. You have given me a pointer to a whole new level of sound reproduction. Thank you! :)
And a question: how do you wire up all those ancillary tweeters? Just in parallel with the midrange drivers or through a separate additional amp?

John Kuthe...
The active noise cancelation is a gimmick. It doesn't work right. And you want every driver on its own channel so you are in full control of what it does and when it does it

 
The active noise cancelation (SIC) is a gimmick. It doesn't work right. And you want every driver on its own channel so you are in full control of what it does and when it does it
Well, now I have one expert recommendation FOR sound processing and one expert recommended against it! Thanks CarAudio.com! ;-)

But I agree with a dedicated amp for every driver/speaker. Just seems to make good sense to me, and the power and control it gives you seems like a very good thing. May require a lot of tuning and tweaking to get everything perfect though.

John Kuthe...

 
VERY interesting! Yes I'm very familiar with the concept of active noise cancellation, one of the things the alpine pxa-h800 processor does! Thank you! This is the kind of good information I was hoping to get from this message board and it's participants. Yes I would like to go from just loud and clean to truly majestic if I can. You have given me a pointer to a whole new level of sound reproduction. Thank you! :)
And a question: how do you wire up all those ancillary tweeters? Just in parallel with the midrange drivers or through a separate additional amp?

John Kuthe...
you will need an additional 2 channel amp for the tweeters not only to gain match for proper level and blend but to individually control the crossovers and time align them as well via the processor. The active noise cancellation is not the main feature, the main feature is an overall better DAC, individual time alignment aka you control the distance from each driver to your ear, individual EQ with 31 bands, Fully bandpass capable crossovers so you can really tune the drivers to match your vehicle acoustics. Noise cancellation is a truly a gimmick but THATS NOT what you buy a processor for. Again, your ignorance led you to take things the wrong way over and over in your previous reply to losisatool. It really shows how full of yourself you really are.

Achieved nothing, are you kidding me? Not only was I an accomplished baker in the 1980s, I put myself through engineering school in the early 1990s while battling Multiple Sclerosis, went skydiving a few times before getting severely into whitewater kayaking and becoming an ACA certified whitewater kayaking instructor too! Then to get a reasonably well paying job hard to ourtsourse I put myself through nursing school and got my Bachelor's degree in nursing plus passed the NCLEX exam (state licensing test) first time!!
I don't give a rat's *** about all the audio competition ego battling crap that goes on, except it's kind of interesting to hear the excellent actual real world results folks can get out of all this expensive electronic equipment! I want some of that WITHOUT the ego!

John Kuthe...
Like i said you have absolutely nothing achieved in the car audio scene. We dont care about anything else here. This ain't facebook or tumbler, we dont care about anything else besides audio. This is caraudio.com We all live and breathe car audio and are major fanatics, this sh*t is worst than crack cocaine to us.

 
you will need an additional 2 channel amp for the tweeters not only to gain match for proper level and blend but to individually control the crossovers and time align them as well via the processor. The active noise cancellation is not the main feature, the main feature is an overall better DAC, individual time alignment aka you control the distance from each driver to your ear, individual EQ with 31 bands, Fully bandpass capable crossovers so you can really tune the drivers to match your vehicle acoustics. Noise cancellation is a truly a gimmick but THATS NOT what you buy a processor for. Again, your ignorance led you to take things the wrong way over and over in your previous reply to losisatool. It really shows how full of yourself you really are.
I am so full of myself I know how much I do NOT know, particularly about auto audio anymore. I used to think I knew a lot about audio stuff because I was always the one who knew how to plug equipment together to make it work. In fact when I was 19 I had a Pioneer CTX-1000 cassette deck with a separate record and playback heads and the tape monitor signal was playback from the tape monitor/playback head, and I hooked up a microphone as input then played back the slightly delayed playback/tape monitor signal and the feedback was wild and it was from this that our band the Cheep Effects was born! I play no instruments but I was the techie of the group! Here's one of our songs we did in an actual small recording studio with me at an old plug-together-with-patch-cords Moog synthesizer:



I care absolutely nothing about ANY "scene"! As Mark Twain said I'd not want to be a member of any club that would have me as a member! I'm just trying to learn a little about modern car audio to put together a pretty good system for myself.

John Kuthe...

 
I care absolutely nothing about ANY "scene"! As Mark Twain said I'd not want to be a member of any club that would have me as a member! I'm just trying to learn a little about modern car audio to put together a pretty good system for myself.

John Kuthe...
Well you ain't learning sh*t when all you do is refute common knowledge with your own bullsh*t

 
This just shows you are an ignorant noob with zero experience in audio trying to talk sh*t. Anyone with any kind of basic setup either home theatre or car audio has tried a big driver in a small box and found that there's zero bass reproduction while inside a bigger box, there is much more bass reproduction.
You can also see from a simple enclosure modeling software that based on a driver's T/S Parameters, that low end reproduction is much higher in a bigger airspace vs a smaller airspace.

For Ex: This 12 inch sub in a 1 cubic feet box vs a 3 cubic feet box, same port tuning but drastically different frequency response. Its the same thing as shoving a 6x9 in whats basically a 0.1 cubic feet sealed enclosure vs the whole door cavity which is about a cubic feet or more of airspace. Makes the difference from your speaker sounding like the tin man vs a full bodied driver capable of playing every drum kick that you can feel in your chest.

NjTiDu.jpg
I love it when someone breaks out the graphs.. Lol

 
Well you ain't learning sh*t when all you do is refute common knowledge with your own bullsh*t
I am fishing through a lot of ego driven BS to try and find facts!! No richer SBS environment than a bunch of testosterone driven Type A personalities who all think they and/or their's are king s**t!

Got another clue recently on some very good looking sound/panel vibration damping material called Roadkill Extreme. Now I can't find the post referring to it!

John Kuthe...

 
I am fishing through a lot of ego driven BS to try and find facts!! No richer SBS environment than a bunch of testosterone driven Type A personalities who all think they and/or their's are king s**t!
Got another clue recently on some very good looking sound/panel vibration damping material called Roadkill Extreme. Now I can't find the post referring to it!

John Kuthe...
lol stinger roadkill extreme. It's good for the price

 
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