dr_sharp Posted March 6, 2011 Share Posted March 6, 2011 call em - old school, ya know lol Link to comment Share on other sites More sharing options...
seiyafan Posted March 8, 2011 Share Posted March 8, 2011 For those of you who have done it before I have a question about what to use on door panels besides a layer of damping material. I need something that's closed-cell (not absorbing water) and it can't be too thick. Right now I found Overkill, Ensolite and Dynaliner, but dunno which to get. (ideally I want to put Luxury Liner pro but that stuff is too thick and make your door feel like it's filled with cement. LOL) Link to comment Share on other sites More sharing options...
CDN 2.5i Posted March 8, 2011 Share Posted March 8, 2011 1/8” mass loaded vinyl works well... Link to comment Share on other sites More sharing options...
seiyafan Posted March 9, 2011 Share Posted March 9, 2011 What should be put directly behind speakers to absorb back-wave noise? Close cell foam or mass vinyl? Link to comment Share on other sites More sharing options...
CDN 2.5i Posted March 9, 2011 Share Posted March 9, 2011 I put dampener on the outer door skin behind the speaker. You'll need something you can adhere to the sheet metal there. Link to comment Share on other sites More sharing options...
dr_sharp Posted March 9, 2011 Share Posted March 9, 2011 What should be put directly behind speakers to absorb back-wave noise? Close cell foam or mass vinyl? Door speakers can be put inside of sealed baffles, but depending on speaker size it may be difficult to fit. The alternative is to seal around the perimeter of the speaker and be sure the whole door has a layer of MLV... this would be considered infinite baffle and is pretty common. Speakers are designed to function in an infinite baffle. Subwoofers, on the other hand, usually not. lol Link to comment Share on other sites More sharing options...
seiyafan Posted March 9, 2011 Share Posted March 9, 2011 I meant something like this: http://www.dynamat.com/products_car_audio_dynaxorb.html Instead of spending more, use something else. Link to comment Share on other sites More sharing options...
garbo41610 Posted March 16, 2011 Share Posted March 16, 2011 I meant something like this: http://www.dynamat.com/products_car_audio_dynaxorb.html Instead of spending more, use something else. Unless you are going to deaden the rest of the door (outer and inner layers) I wouldn't bother. Back wave distortion on entry level speakers is hard to hear IMO. I have competed in, and won many SQ comps without using dynaxorb, I have also won comps using dynaxorb. It's all about the install mate. Link to comment Share on other sites More sharing options...
seiyafan Posted March 17, 2011 Share Posted March 17, 2011 (edited) . Edited March 19, 2011 by seiyafan Link to comment Share on other sites More sharing options...
Ferenczy33 Posted April 14, 2011 Share Posted April 14, 2011 (edited) So I've read the multiple posts of those attempting to quiet down the aftermarket exhuast drone with not much success by applying dampening materials to the rear seat/trunk area. Just wondering if anyone has every tried applying sound deadener actually under the car instead? Came across some heat deflecting/dampening material at the local performance auto parts store and started thinking to myself what if I installed this stuff underbody instead. Anyone ever used this stuff before? http://www.thermotec.com/products/14600-suppressor-acoustical-heat-control-mat.html Edited April 14, 2011 by Ferenczy33 Link to comment Share on other sites More sharing options...
Merc6 Posted April 15, 2011 Share Posted April 15, 2011 Better off with adding a resonator and making the tips come past the bumper. Did underside and it wasn't a complete waste. I killed a few rattles and found out dynamat extreme did last on the heatshield above the stock/aftermarket mufflers and 2 years of road salting. No longer have the cars after 2 years each to verify it's still there but when I went stock I noticed the road noise was dropped noticeably over when I got em brand new. With the legacy I didn't explore that yet I just turned the subs up more and threw a resonator on. Road noise was cool with me I had more issues with the wind noise. 2005 Satin White Pearl Subaru Legacy 2.5 GT Unlimited 5EAT (Project Car) 2019 Agate Black Ford Explorer XLT 4WD (DD) Link to comment Share on other sites More sharing options...
citka Posted April 20, 2011 Share Posted April 20, 2011 I just completed an install of all the material that Don at SoundDeadnerShowdown recommended for the Legacy Wagon. Overall it turned out excellent. I have about an 8 db drop in road noise at freeway speeds. Link to comment Share on other sites More sharing options...
cholmes1 Posted May 15, 2011 Share Posted May 15, 2011 I just completed an install of all the material that Don at SoundDeadnerShowdown recommended for the Legacy Wagon. Overall it turned out excellent. I have about an 8 db drop in road noise at freeway speeds. Thats a very impressive dB drop for something as large as a wagon. What all did you do and approx. how much weight did it add? Link to comment Share on other sites More sharing options...
Grumbles08 Posted May 24, 2011 Share Posted May 24, 2011 Has anyone used any of these products in the shifter area? After I installed my Cobb short shifter, 2nd gear is noticeably louder and there is an annoying whine in 6th. Was curious if any of these products might cut the noise down. Link to comment Share on other sites More sharing options...
citka Posted May 24, 2011 Share Posted May 24, 2011 I pretty well covered the area, minus the rectagle that the shifter comes up through. It DOES reduce the noise, but not by a lot. You still have that Subaru signature sound through the gear shifter. Link to comment Share on other sites More sharing options...
cholmes1 Posted May 24, 2011 Share Posted May 24, 2011 Has anyone used any of these products in the shifter area? After I installed my Cobb short shifter, 2nd gear is noticeably louder and there is an annoying whine in 6th. Was curious if any of these products might cut the noise down. I would be wary of killing too much of your trans sound. From my experience with my (MT) Impreza when 5th gear started to whine it was not long before I had to change the gear itself along with the throwout and fluid. It all depends if the whine is constant regardless of speed or if the whine fluctuates (gets louder) as you accelerate. I hope it is nothing for your sake, but thought I would share a similar story. Link to comment Share on other sites More sharing options...
Grumbles08 Posted May 26, 2011 Share Posted May 26, 2011 Appreciate the feedback. The noise is pretty constant in 6th, sometimes it fades in and out. Not really sure what it is. I sure hope it isn't the problem you had, the car only has 40K on it. Link to comment Share on other sites More sharing options...
cholmes1 Posted May 27, 2011 Share Posted May 27, 2011 My 5th gear gave way at around 65K. Car was not modified or anything, just did a lot of interstate driving and the damn thing just gave up. For your sake I also hope that it is something minor. You may even try something as simple as swapping your trans fluid for a synthetic. Has made a big difference in mine. Link to comment Share on other sites More sharing options...
Grumbles08 Posted June 2, 2011 Share Posted June 2, 2011 I do a lot of highway driving and the car does see a lot of time in 6th, I hope it isn't anything out of the ordinary. It only became apparent after I installed the Cobb shifter. I think I will try a synthetic oil, hopefully that does the trick. Link to comment Share on other sites More sharing options...
sjwelna Posted July 21, 2011 Share Posted July 21, 2011 (edited) What should be put directly behind speakers to absorb back-wave noise? Close cell foam or mass vinyl? In case anyone else is wondering, I have used Deflex pads from www.parts-express.com glued to the outter door skin (inside the door! ) with contact cement. They did seem to help. Also making sure there is a layer of sound deadener on the outter door skin helps as well. P/N: 268-242 http://www.parts-express.com/pe/showdetl.cfm?Partnumber=268-242 I use contact cement to glue Volara foam to door panels/sound deadener as a top layer and it really helps road noise. I'm going to do the Legacy one of these days..... Link to Volara that I have used before (same purpose as ensolite): http://www.foambymail.com/Volara.html -Steve Edited July 21, 2011 by sjwelna Link to comment Share on other sites More sharing options...
cholmes1 Posted August 15, 2011 Share Posted August 15, 2011 Hey thburkart...Could you take pictures of your door setup with the rubber tape? I think this also is the biggest issue across all Subaru models Link to comment Share on other sites More sharing options...
04texag Posted August 15, 2011 Share Posted August 15, 2011 A Pic of the rubber tape would be great, Also, where did you get the rubber tape? Can you post a link of the or a similar product? Thanks, Link to comment Share on other sites More sharing options...
citka Posted August 16, 2011 Share Posted August 16, 2011 In for pictures of it on the car. Link to comment Share on other sites More sharing options...
Tomkat1127 Posted August 16, 2011 Share Posted August 16, 2011 Hey thburkart...Could you take pictures of your door setup with the rubber tape? I think this also is the biggest issue across all Subaru models In for pictures of it on the car. I'm having trouble picturing where this was installed too. Inside the door or around the outside edge. I'm thinking this is around the outside edges like a secondary weather seal. Wonder if it binds the door from closing at all? Link to comment Share on other sites More sharing options...
04texag Posted August 16, 2011 Share Posted August 16, 2011 I'm envisioning he installed it on top of or next to the current weatherstripping that is running along the sides and bottom of the door panel. Pictures would greatly help. It looks like they carry this at Ace hardware, so I may run by and check it out. Link to comment Share on other sites More sharing options...
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