Subs get louder with trunk open
09-12-2008, 08:03 PM
#1
Subs get louder with trunk open
Okay so I am sitiing in the car with the tunes going. I remember the cd I want is in the trunk. So I reach down and unlatch from inside with all doors closed and my subs seem to get twice as loud????? They are in a crappy band pass box with ports against the back seat. Why is this does anyone know??? 
09-15-2008, 06:32 AM
#5
Did you mean you folded down the back seat to get into the trunk? If you did you simply allow the air from the trunk to get into the cabin more easily. Since sound is just moving air the better the flow the louder it will be
04-13-2009, 03:45 PM
#6
50 Watt CAFz'r
Join Date: Apr 2009
Posts: 132
Hey 420guy,
You can help to regain some of that bass energy by mounting your box in a way that the vents are firing into the cabin of the vehicle. If possible, the best way is to isolate the vent air energy from the trunk altogether. In some cases, if these vents are long enough they can simply be 'pulled' partially out of the box and into/through a large enough hole that is in the rear deck of a vehicle... remember to seal around the vent and rear material to prevent any leakage back into the trunk. If you're lucky these vents may line up with existing speaker cut outs. If not, you will have to trim some material etc.
If your vents are not long enough, you may be able to 'lift' the entire box and position the vents as close as possible to cut holes in the rear deck. This is not the best option as the vent waves will still leak back into the trunk, but will produce better bass than you have now by directing the vent air energy towards the inside cabin of your vehicle... you want to get as much of that 'pressurized air' directed towards the inside of your car.
Note: If you do any of these options and you want to esthetically cover the vent holes in the rear deck you will have to make/upholster/put grills over etc.
Hope this helps!
Cheers,
Rino
You can help to regain some of that bass energy by mounting your box in a way that the vents are firing into the cabin of the vehicle. If possible, the best way is to isolate the vent air energy from the trunk altogether. In some cases, if these vents are long enough they can simply be 'pulled' partially out of the box and into/through a large enough hole that is in the rear deck of a vehicle... remember to seal around the vent and rear material to prevent any leakage back into the trunk. If you're lucky these vents may line up with existing speaker cut outs. If not, you will have to trim some material etc.
If your vents are not long enough, you may be able to 'lift' the entire box and position the vents as close as possible to cut holes in the rear deck. This is not the best option as the vent waves will still leak back into the trunk, but will produce better bass than you have now by directing the vent air energy towards the inside cabin of your vehicle... you want to get as much of that 'pressurized air' directed towards the inside of your car.
Note: If you do any of these options and you want to esthetically cover the vent holes in the rear deck you will have to make/upholster/put grills over etc.
Hope this helps!
Cheers,
Rino
intensive low's
05-16-2009, 06:45 PM
#8
0 Watt CAFz'r
Join Date: Aug 2007
Posts: 41
Hey 420guy,
You can help to regain some of that bass energy by mounting your box in a way that the vents are firing into the cabin of the vehicle. If possible, the best way is to isolate the vent air energy from the trunk altogether. In some cases, if these vents are long enough they can simply be 'pulled' partially out of the box and into/through a large enough hole that is in the rear deck of a vehicle... remember to seal around the vent and rear material to prevent any leakage back into the trunk. If you're lucky these vents may line up with existing speaker cut outs. If not, you will have to trim some material etc.
If your vents are not long enough, you may be able to 'lift' the entire box and position the vents as close as possible to cut holes in the rear deck. This is not the best option as the vent waves will still leak back into the trunk, but will produce better bass than you have now by directing the vent air energy towards the inside cabin of your vehicle... you want to get as much of that 'pressurized air' directed towards the inside of your car.
Note: If you do any of these options and you want to esthetically cover the vent holes in the rear deck you will have to make/upholster/put grills over etc.
Hope this helps!
Cheers,
Rino
You can help to regain some of that bass energy by mounting your box in a way that the vents are firing into the cabin of the vehicle. If possible, the best way is to isolate the vent air energy from the trunk altogether. In some cases, if these vents are long enough they can simply be 'pulled' partially out of the box and into/through a large enough hole that is in the rear deck of a vehicle... remember to seal around the vent and rear material to prevent any leakage back into the trunk. If you're lucky these vents may line up with existing speaker cut outs. If not, you will have to trim some material etc.
If your vents are not long enough, you may be able to 'lift' the entire box and position the vents as close as possible to cut holes in the rear deck. This is not the best option as the vent waves will still leak back into the trunk, but will produce better bass than you have now by directing the vent air energy towards the inside cabin of your vehicle... you want to get as much of that 'pressurized air' directed towards the inside of your car.
Note: If you do any of these options and you want to esthetically cover the vent holes in the rear deck you will have to make/upholster/put grills over etc.
Hope this helps!
Cheers,
Rino
(Not to Hi-Jack the thread) but I'm planning on doing that same Idea with the rear deck, and Im wondering whats the best solution for directing positive waves off the front of the cone into the cabin, or should they just go into the trunk because the negatives thru the port into the cabin will overpower it? any help would be great, as I'm goin to start 'glassing it in a few weeks. thanks.
