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SolaraGuy.com • View topic - I've done it! I have found our ideal soundstage for Lara!
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I've done it! I have found our ideal soundstage for Lara!

Postby ~SolaRaSpeed~ » Tue Feb 23, 2010 9:31 am

it's interesting you mention repointing your mids in the door. This past weekend I spent some time sealing up the big hole in the door behind the door card and noticed two things. It seemed to bring the soundstage up a little and towards the front of the car and it increased the midbass a little bit more. I have deadened the crap out of the doors and have a deflex pad in there so the gain was there but it took me a few listens to really compare the difference.

I will also be trying reversing the phase of the mids to see if helps any further.
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Postby crispone » Tue Feb 23, 2010 11:32 am

...still waiting for the first pic... :popcorn:








-crisp :evilbat:
Last edited by crispone on Tue Feb 23, 2010 8:44 pm, edited 1 time in total.
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Postby 99BlackSandv6 » Tue Feb 23, 2010 1:26 pm

X2

waiting...
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Postby Aotoyota » Tue Feb 23, 2010 6:10 pm

wait.. you havent plugged up the hole.. and sound deadened?

that should fix a whole lotta stuff.
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Postby ~SolaRaSpeed~ » Wed Feb 24, 2010 8:25 pm

I dynamated the crap out of the door inner and outer panels back when I put my speakers in (a bit too much as I've come to learn). I just never covered the big hole with anything. Although now that I know better I'll be picking up some mass loaded vinyl to go on top of the outer panel and closed cell foam for the door card for true quite before I cover that hole.
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Postby MisterTedster » Thu Feb 25, 2010 1:40 am

Yeah sorry about the pics, I've been pretty busy. Atm, my little sound system project is on hold because I just blew out my left mid. I'm going to get myself a pair of id oem 6.5" mids and a set of seas neo tweeters. Probably one of the sweetest sounding combos for the price since I have active capability with my amp.

For improving mid bass response, obviously deadening helps. You can use plexiglass plus liquid nails or silicone caulking to cover the hole. From what I understand, eggcrate foam is more effective than deflex pads (and a whole lot cheaper!). I have baffles for my mids that I have cut the bottoms out of so I'm going to figure out a way to glue the foam where the bottom of the baffles were, just behind the 6.5" drivers, to see if this improves bass response.
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Postby ~SolaRaSpeed~ » Thu Feb 25, 2010 11:02 am

since this is your thread, how did you decouple the baffle from the door? I am using clay but have heard of using extruded butyl "rope" to really stick the baffle to the door. Not sure there will be a sound difference.

also what type of baffle are you using?
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Postby MisterTedster » Thu Feb 25, 2010 2:01 pm

^ I lined the area around the speaker hole with sound deadening. The flanges of the speaker baffle went over that, and then I used the stock speaker mounts, with that little protective piece cut off. The foam on the stock speaker mounts were still in good shape so I kept them. As for the speaker baffle, I just used some generic plastic (not foam) baffles on ebay. I think they were the metras. Like I said, I cut out the bottom because the baffle is so small that it hurt my mid-bass (most drivers are designed for infinite baffle, ie. free air). However, I did line the insides of the baffle with more sound deadening on top of that. I feel the resulting mid bass you get just by doing that is almost, if not as good as, sound deadening the entire door. Once I get my new mids in I will be using clay to decouple the angled mdf rings I just got and lining the speaker all around with clay even further just to add some mass and reduce vibration. In this set-up I just made sure to screw in the speaker mount really well, as well as screw in the speaker to the mount really well, and I get no vibration whatsoever.

The extruded butyl rope is actually very useful for covering the big hole in our doors with plexiglass.

As a side note, I've decided to take my project to the next step and see if I can fabricate some custom tweeter pods out the sail panels and get the pointing absolutely perfect. Otherwise, I'll see if I can get some hinged tweeter mounts to just get the pointing right, and be done with it. I've racked my brain enough trying to get the perfect sound stage.

If I decide that my custom tweeter pods are good enough, I may just decide to start making them for other SG'ers who may be interested. Even customized down to specific tweeter mounts and where they want them to be pointed.
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Postby ~SolaRaSpeed~ » Thu Feb 25, 2010 10:27 pm

Having the mdf rings for baffles will help your sound as it is adding mass to the baffle. Decoupling with clay or extruded butyl helps reduce resonance in the baffle. I never use those metra weather covers, or as they are listed "baffles" as I have never heard them improve sound. And remember vibration damping is only 1/2 the picture of deadening a door.
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