How to make your trunk sound good

[crazy4life 10+ year member]

I'm in the process of moving my current temporary setup to my trunk for a more permanent install. Whats the best way to go about this? So far i have a trunk pack of dynamat pro.

I just dont want to lose any SQ or loudness from my sub when i move it from my back seats.

This is my box i had designed for me. I am going to leave a seat or all my back seats down. Sub up port back.

37w x 14h x 22d, 4 cubes @ 34.5hz with 62.5 sq in of port

Cuts:

37 x 22 (2x, top and bottom)

37 x 12.5 (back)

30.5 x 12.5 (front)

21.25 x 12.5 (2x, sides)

15.5 x 12.5 (port wall 1)

5 x 12.5 (port wall 2)

45 degree corner piece in port is 4 to 4 1/8" long on the bigger side of it

Click to read more...

 

[PhatTonyDeMarco 5,000+ posts]

I would fire the sub back as well, I had a trunk vehicle for a couple years and had everything from Audiobahns to Inhumans in that mother flubber and sub rear port rear was always the best for output and SQ.

 

[Jeremy M 10+ year member]

to the ear^^

 

[PhatTonyDeMarco 5,000+ posts]

to the ear^^

Great addition to the thread; no one ever said a word about competing here, so yes to the ear is correct.

 

[crazy4life 10+ year member]

I was told to make the box no more than 14" high thou. Something about the sound waves canceling each other out with taller boxes.

I mean right now it sounds amazing and blows away every other system iv heard in my town.

And yes this is not for competing. I am considering adding another Deathrow thou //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

 

[fbi90909 5,000+ posts]

wait... you have your setup in your back seat???

well, depending on the car you may lose a large portion of sound quality not cause of the speaker, but the car itself. depending on the amount of pressure that the sub can create you are most likely going to head a lot of trunk and rear panel rattle.

for my next setup/rebuild, i have to front fire my sub into the cabin and seal it off of my trunk to reduce any trunk flex. that should remove any panel noise and trunk noise. or so i hope..

 

[crazy4life 10+ year member]

Actually the trunk doesn't rattle but my back shelf area above my back seats does a little. There is minimal rattling outside my car. This is my temp. setup.



Do you guys think i'm losing loudness or sq by having my box resting on my back seat like that from the free space in my trunk?

 

[thorshammer1 10+ year member]

I was told to make the box no more than 14" high thou. Something about the sound waves canceling each other out with taller boxes.

I'm not sure about cancelation issues but if the box is too big it will choke the sound in the trunk( not allow the air to move freely into the cabin). I wanna say my box is 15 high.

 

[crazy4life 10+ year member]

How do you have your box setup? Sound deadener?

 

[Rashaddd 5,000+ posts]

Actually the trunk doesn't rattle but my back shelf area above my back seats does a little. There is minimal rattling outside my car. This is my temp. setup.

It'll be louder almost definitely in the trunk, might lose some SQ cuz you'll have alot more rattle most likely, and it'll definitely rattle alot more outside the car, but inside it should sound fine, depending on how much air passage there is from your trunk to the cabin and how loud the trunk lid and other parts of your car are when they are resonating