I'm trying to find out whether Dynamat is worth it

Was hoping to hear from someone that has experienced a before and after with dynamat being the only change

Does it make that much difference?

The difference is like night and day.

Back a year and a bit ago when I started my install, I put Dynamat Xtreme on the outer door skins at first with the stock stereo still in place. First night I covered the drivers door, and that speaker became a lot clearer than the passenger.

Since then, I havnt stopped using Dynamat, as I thought it was a crock.

2.5 Bulk packs later, and another bulk pack to follow, plus Dynaliner......

It gets addictive to say the least.

Im guessing bass response should be better as it basically turns the door into a sealed enclosure.

I noticed the bulk packs are about $230 delivered on ebay thats pretty cheap right?

Bass response not so much (plus, in all honesty your fronts should be at around 70-80Hz high pass filter).

The sound is a lot more clear and defined with dynamat.

$230 is about right for a bulk pack.

Door wont be a sealed enclosure, for that, you need 3-4mm MDF, zip ties, and some patience to block off every service panel.

This is when your mid range generally picks up, along with some lower notes (rough guess is around 80-120hz)

I was under the impression that dynamat on the inner and outer skins makes it an enclosure

Not quite,

Pull off your door trim and have a look. You have 3 holes in your 'inner skin'.

In the Bora ( god bless her sole ) it has fully sealed metal inner skins ( well close enough ). I had to put the car in to get the electric window fixed and they said that the inner skin would not need to be replaced. I thought they had stuffed my mid cause it sounded crap. Turns out they had replaced the door skin and there was no Dynamat anymore... enough said.

Dynamat help to add weight and absorb refelecting waves. This means that energy isn't wasted in vibrating panels.

We now have a Lancer VRX with the Rockford Upgrade and ill be putting a bulk pack in the car to improve that and lower road noise. It's all win win except for the weight.

I was under the impression that dynamat on the inner and outer skins makes it an enclosure
Yeah, if you cover the holes, then it does basically make it a sealed enclosure. This is good because it will stop sound wave cancellation. It will also make bass responce better.
Dynamat is great for keeping sound in the car. I can now crank my speakers right up and it can still barely be heard from the outside of the car! ( and I'm running 125wrms splits so they are preety loud!)

Yeah, if you cover the holes, then it does basically make it a sealed enclosure. This is good because it will stop sound wave cancellation. It will also make bass responce better.
Dynamat is great for keeping sound in the car. I can now crank my speakers right up and it can still barely be heard from the outside of the car! ( and I'm running 125wrms splits so they are preety loud!)

Thats what im talking about doing, covering the entire inner door and all the service holes aswell as the inside of the outer skin.

Is it tricky putting it on, looks like it could be a little fiddly cutting it out because of the door handles and brackets and other bits on the door.

Leave it as a fully piece and start on the top inner section of your door and work down and across. As you go make slits to manipulate wires etc and cut out any required bits for window motors etc. It will hold their enough for you to do it by yourself.

Well worth it!
If you want something slightly cheaper but IMO just as good, Stinger Roadkill is an option. The Jaycar stuff though will slide off on a hot day. My Stinger Roadkill has been on for 3-4 years and hasn't moved.

Bass response isn't improved, but it does affect midbass quite a bit and removed a lot of road noise.

Don't forget a sound absorbing tile behind the speaker... a Focal Plain Chant tile or something equivalent. Stops the sound waves bouncing back off the outer door skin and back into the rear of the speaker.

I had my Focal Polyglass Components running in the doors originally on the plastic baffles with no sound deadening. When I put in the MDF baffles and dynamatted the door it made a dramatic difference, the bass response was much better and the overall sound was much clearer. Highs obviously very much the same because the tweeters are above the door anyway, but the mid-range was much richer.

That's the MDF and the dynamat though, so its hard to say what did what :P I'd say the mid-bass was improved by the mdf baffles, the rest was a combination of the dynamat and mdf.

I had my Focal Polyglass Components running in the doors originally on the plastic baffles with no sound deadening. When I put in the MDF baffles and dynamatted the door it made a dramatic difference, the bass response was much better and the overall sound was much clearer. Highs obviously very much the same because the tweeters are above the door anyway, but the mid-range was much richer.

That's the MDF and the dynamat though, so its hard to say what did what :P I'd say the mid-bass was improved by the mdf baffles, the rest was a combination of the dynamat and mdf.

Already done the MDF so all good there.

Are they mohits wheels i see in your avatar?

Already done the MDF so all good there.

Are they mohits wheels i see in your avatar?
You HAVENT seen his thread? :happy:
bad boy, go see Lugo's thread hahaha yeah they are his wheels lugo has now gone pimp spec