Hey all.
So I have just about finished tar-papering my whole car. I do have a few sections of a panel here and there to finish up, but the most of it is done. Next it will be time to decide wether to try to build pods for the CDTs I picked up last week or to just cut into the door. Swez, I know you mentioned pod building can be very cost prohibitive but what else can you say about it. Will I notice a difference in imaging if I build a pod which adjusts the angle of the speakers just a tad? I guess basically my question is...is it worth the effort?
Thanks
Pinch
Replies (5)
Swez on 10/10/2003 16:22:43
Pinch,
Can't say one way or the other as to whether pods are worth the extra trouble or not. Kick panels are common and do a pretty good job at sound projection and alignment. Pods are basically the same thing, but door mounted and the midbass has good low end response if the chamber is matched to the driver airspace needs and well sealed.
Other than that, OEM door mounts are not a bad option. Especially if you have already matted the door panels. It will act like a large sealed chamber so that helps a lot.
Tweeter aiming is really the only other issue and since these have swivel mounts already, aiming them to best possible position should be somewhat easy too.
Custom pods are usually hand made in fiberglass and can be very expensive too. They have to blend in with your existing interior and best left to a guy with lots of experience.
Weigh it all out as you wish... but since you have already matted the door panels, your chances of a nice sound from existing stock position will be better than average.
Swez
Pinch on 10/10/2003 16:47:30
I should mention that in either case I will have to do something that isn't OEM. The only speakers I have in the front are the 4" ones in the dash. So I'm gonna add 2 more on each side. I did find a place in the door panel where I could cut a hole to fit the 6.5" (the corner closest to where a kick panel would be). Dunno, I think I will probably end up going that route.
Swez on 10/11/2003 12:04:05
That makes a lot of sense if you have the clearance for door/window mechanicals in that zone mentioned.
Also, mounting midbass down near the bottom of the door will emmulate what you get with kick panels and if you have to customize the fit anyway, consider shimming the mids upward a few degrees upward and aim them to a focal zone above your knees, but below the hips. This should give very good dispersion charatceristics and less cancellation of direct crossfiring into each other.
As for the tweeters, they can be mounted in any location that allows you to aim them like this:
< "O" > where "O" is your head is in the center of the front seat. This will give you a good 25-40 degree dispersion pattern and avoid harsh tweets that "beam right at your head".
Can you visualize this idea?
Also, the stock 4" speakers in the dash... might be best if you not use them. But if you do use them, be sure to block the lows with filter caps so that you only get upper mids. (300 -2000 Hz.) The HU amp can power them as front fill only.
Comments?
Swez
Pinch on 10/12/2003 06:24:33
Well, remember I've got those 3-way CDT components...which have 2 crossovers per side (a total of 4), so I'd like to use the 4" unless I just can't find room for it. As far as power, I was going to use two Alpine MRVF 340s bridged (one for each side). I am hoping for some nice clear sound...
Swez on 10/12/2003 12:00:04
Ahhhh, thanks for mentioning that part. This may be a good place to swap your stock 4" drivers with the CDT mids and amplify them as noted.
The crossovers are very complex and should be just right for good midrange performance for your application. Here, mounting the 4" mids in stock location may indeed enhance your entire system.
Does it appear very challenging to install your 4" and crossovers i9n a good , out-of-the-way location?
Swez
So I have just about finished tar-papering my whole car. I do have a few sections of a panel here and there to finish up, but the most of it is done. Next it will be time to decide wether to try to build pods for the CDTs I picked up last week or to just cut into the door. Swez, I know you mentioned pod building can be very cost prohibitive but what else can you say about it. Will I notice a difference in imaging if I build a pod which adjusts the angle of the speakers just a tad? I guess basically my question is...is it worth the effort?
Thanks
Pinch
Replies (5)
Swez on 10/10/2003 16:22:43
Pinch,
Can't say one way or the other as to whether pods are worth the extra trouble or not. Kick panels are common and do a pretty good job at sound projection and alignment. Pods are basically the same thing, but door mounted and the midbass has good low end response if the chamber is matched to the driver airspace needs and well sealed.
Other than that, OEM door mounts are not a bad option. Especially if you have already matted the door panels. It will act like a large sealed chamber so that helps a lot.
Tweeter aiming is really the only other issue and since these have swivel mounts already, aiming them to best possible position should be somewhat easy too.
Custom pods are usually hand made in fiberglass and can be very expensive too. They have to blend in with your existing interior and best left to a guy with lots of experience.
Weigh it all out as you wish... but since you have already matted the door panels, your chances of a nice sound from existing stock position will be better than average.
Swez
Pinch on 10/10/2003 16:47:30
I should mention that in either case I will have to do something that isn't OEM. The only speakers I have in the front are the 4" ones in the dash. So I'm gonna add 2 more on each side. I did find a place in the door panel where I could cut a hole to fit the 6.5" (the corner closest to where a kick panel would be). Dunno, I think I will probably end up going that route.
Swez on 10/11/2003 12:04:05
That makes a lot of sense if you have the clearance for door/window mechanicals in that zone mentioned.
Also, mounting midbass down near the bottom of the door will emmulate what you get with kick panels and if you have to customize the fit anyway, consider shimming the mids upward a few degrees upward and aim them to a focal zone above your knees, but below the hips. This should give very good dispersion charatceristics and less cancellation of direct crossfiring into each other.
As for the tweeters, they can be mounted in any location that allows you to aim them like this:
< "O" > where "O" is your head is in the center of the front seat. This will give you a good 25-40 degree dispersion pattern and avoid harsh tweets that "beam right at your head".
Can you visualize this idea?
Also, the stock 4" speakers in the dash... might be best if you not use them. But if you do use them, be sure to block the lows with filter caps so that you only get upper mids. (300 -2000 Hz.) The HU amp can power them as front fill only.
Comments?
Swez
Pinch on 10/12/2003 06:24:33
Well, remember I've got those 3-way CDT components...which have 2 crossovers per side (a total of 4), so I'd like to use the 4" unless I just can't find room for it. As far as power, I was going to use two Alpine MRVF 340s bridged (one for each side). I am hoping for some nice clear sound...
Swez on 10/12/2003 12:00:04
Ahhhh, thanks for mentioning that part. This may be a good place to swap your stock 4" drivers with the CDT mids and amplify them as noted.
The crossovers are very complex and should be just right for good midrange performance for your application. Here, mounting the 4" mids in stock location may indeed enhance your entire system.
Does it appear very challenging to install your 4" and crossovers i9n a good , out-of-the-way location?
Swez
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