Phoenix Gold Phorum

Well I played with kicks vs a-pillar today for the mids and tweets with these off of the passive. 4"
http://www.morelhifi.com/products/mob_p ... ra_xo.html


My summary catch 22 both ways


A-pillars:

Tonality awsome
Stage depth great
Stage width great
stage height great
Image so so, not really that good. Sucked to what I am used to


Kicks:

Tonality so so
Stage depth great
Stage width great
stage height was the rainbow affect
Image centered but has that god damn rainbow affect.




Pick your poison.

Tunning was just 4th order xover and flipping phase.

Awsome and 3 greats gets my vote.

I still like kicks with a pair of imaging tweeters up top wo raise height and width. using the headunit outputs with a 4.7uF inline

shaheen wrote:I still like kicks with a pair of imaging tweeters up top wo raise height and width. using the headunit outputs with a 4.7uF inline

That is about the only thing I have not tried. I have tried everything else.

two way kicks
three way kicks and door
two way kick pillar

ect ect ect

I may have to give this a go.


What I have learned thus far though.

Mid bass sucks in the doors, and the tweeter must be as close as possible to the midrange.


What I want to try next
Imaging tweeter in the pillars
Main mid and tweet in the kicks
Mid bass in the firewall

Chances of getting to this zero lol.

Can somebody please explain the rainbow effect to me a bit?

It refers to stage hieght across the width of the stage. The images in the center of the stage will be at a hieght at or above the dash. But as you listen to sound sources coming from the outer ends of the stage, the hieght of that image starts to drop the closer they are to the outer boundries of the stage. Thus creating a stage that is not flat across the dash but high in the center and lower on outside ends of the stage. Or 'rainbow' effect.

Typically an issue with drivers being under the dash. Vehicles with big center consols are the worst. Where as cars with no consol will be easier to deal with. It relates primarily to the interaction of the left and right channels. Or the lack of. Placing tweeters in the a-pillars will help remedy this but then create different problems. Ussually with focusing of the images because of the seperation of the drivers.

So it's truely a balancing act. Advantages and drawbacks. Like bdubs says .. pick your poison.

Thanks Kitchy-poo

Use ur kicks to get a nice stable image, in most cases what is on the end of the stage is high cymbals or reflections of the original instruments, I have a slightly wonky set up , but then my car is small and not as big as a yank tank.

I had to be vreative but got

Mibass in the floor, just in front of the seats firing towards the point where the windscreen meets the roofline.
Midrange in the kick panels and tweeters in the a-pillar,

Car is a E30 BMW.

Try the Imaging tweeters , I found if you runn them off the rear channel u can fade them in and out to increase the height and width , face them towards eacdh other and wire out of phase with your other speakers.

Another trick to use is to bump 16k and 20K , it picks the stage up and gives a good illusion to rainbow effect.

Let us knwo how it goes.

Oh Jeez .. Now you have a pet name for me? .. better keep that low key, people might start to wonder.

shaheen wrote: Another trick to use is to bump 16k and 20K , it picks the stage up and gives a good illusion to rainbow effect.

Thats how I usually fix it but it's not the same....


Ive had plenty of install that sound amazing once the DSP is dialed up, but just didnt have it all.


Im going off the idea now tryign to figure out best positions prior to DSP, than dial it in.

Well see.