Cabin and trunk coupling

DRWeside · 06-02-2005, 10:22 PM

I have a 12" XPLOD in a sealed enclosure in my trunk. Bass is adequately felt through the backseat, but would like to make a hole in my reardeck for actual air pressure to come through.

From what I can see, I have room for 2 circular holes with a diameter of 6". Has anybody done this? Should I worry about the dimensions and geometry?

WhiteRabbit · 06-03-2005, 02:52 AM

what you should worry about is the pain in the arse cutting holes in the rear deck might be. check your rear deck; mine is a triplethick layer of steel. It would take me 10 hours and half a dozen air body saw blades to cut those holes.

you do have another opton, though. if you purchase new front speakers that have adequate low frequency extension to match up to the xplod in the trunk, you can try simply removing your rear speakers, and using existing holes to let all that nice bass into the cabin

But I would guess your rear deck will be way too thick to bother with. doublecheck of course, get back to us.

DRWeside · 07-15-2005, 01:23 PM

Bringing up an old thread only because it's somewhat related.

Is it possible for a sub in a trunk to blow out the speakers installed on the rear deck? Could the pressure produce by a sub at high volume be enough to force the separation of the voice coil in a coaxial speaker sitting on the rear deck of your car? Assume that the trunk is sealed and that the back of the speaker is sharing the same space as the subwoofer.

WhiteRabbit · 07-15-2005, 02:38 PM

possible, but not probable. Ive never seen it happen. I suspect it would be like mythbusters, where nothing you do gets the subwoofer to harm the rear speakers, and you have to build some sort of ridiculous apparatus in your trunk to get the subwoofer to actually damage the rears.

I wouldnt worry about it. physical damage, that is.

accentsound · 07-16-2005, 05:55 PM

You won't blow em but you will get distortion as the sub uses the speaker in the deck as passives.

WxGuy1 · 07-17-2005, 12:08 AM

Quote: Originally Posted by DRWeside

Bringing up an old thread only because it's somewhat related.

Is it possible for a sub in a trunk to blow out the speakers installed on the rear deck? Could the pressure produce by a sub at high volume be enough to force the separation of the voice coil in a coaxial speaker sitting on the rear deck of your car? Assume that the trunk is sealed and that the back of the speaker is sharing the same space as the subwoofer.

You probably wouldn't blow them, but you may cause them to "bottom out"... In other words, you'd hear loud popping noises as the sounding of metal hitting metal (magnet in this case). I had this problem with the stock rears + 2 12" subs in trunk... The pressure differential from the subs would literally "suck" the cones of the rear speakers too far back, causing the bottoming out. I ended up removing the rear speakers all together.