Im just about to start working on custom build on my 350z roadster.

Deadning is the first step in the plan. Should I put dynamat into the trunk even if I will not install any speakers/subwoofers there? Will it be usefull at all?

Another question, is it necessary to put dynamat on door's plastic from the inside or just the door itself will be enough?

Just a few words about what am I going to put in the car:
Pioneer AVIC F900BT
4 Alpine SPX-17PRO Speakers
2 Alpine V-Power series amps (600 and 1000w)
1 Alpine SWX-1043D in standard place

 

unless you want to sound like 99% of others that upgrade their system and think it is cool to have that "trunk buzz" then leave off the sound deadening.

 

i installed alot on my friends 06 eclipse gt and it sounds beautiful now. omg what a difference. different vechile may vield different results tho.
if your not to worried about weight then go about putting some in there. its worth it

o and the entire door is not neccessary just put a 1'ish x 1'ish piece around the actually speaker. that should be fine. but more can sometime be better wth this dynomat.
so experment with your needs

 

Why would you put a sub in the trunk of the roadster? The trunk is so far removed from the cabin I would probably opt for a behind the seat enclosure.




Either way, before you cross the pearly gates you will have to answer this question: mortal, why did you add unnecessary weight to such a beautiful performance creation?

 

Thanks for answers, guys.
And I meant that i will NOT put any subs or speakers in the trunk. Just forgot to type NOT Sorry

 

o.... then no

u will tell a difference if you put it in the doors tho

 

The nice thing about a roadster vs. a coupe is that your rear wheels are inside the trunk with a roadster (a natural sound deadening configuration) and inside the car with a coupe (a mini-station wagon allowing all sorts of road noise to enter the car).

You should put some sound deadening inside the front doors. That eliminates some outside noise as well as preventing any buzzing when you turn the volume up.

--Spike

 

I haven't listened to a sub mounted in the trunk of a Z roadster, but I have in other "longer" cars. The benefit of the sub being far away is that the longer wavelengths have more time to travel to the front of the car, giving a more accurate sound.

That being said, simply for the purpose of minimizing unwanted weight and maximizing trunk space, an 8 inch sub behind the seat would probably be your best bet. But since you already have the 10 inch, that will work as well.

 

I am aware of this principle, but ruled it out not because of the distance to the driver, but because of the obstructions the sound would have to travel through (namely a stowed ragtop, amongst others). As you agree, it just doesn't seem like a practical idea on a roadster.