Cutting out trunk for subwoofer
#1
Cutting out trunk for subwoofer
I was just wondering if anyone has any advice for me about cutting out the metal behind the rear seat handrest. I'm putting in a small sub in the trunk but the trunk holds in all the sound and was just wanting to create a port for the sound to come through. Is this something I can just take a metal saw to cut out?
#2
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roblox84, no need to cut any metal back there. If you look in the center, there are already 2 large holes cut there. Secondly, with the nature of the bass notes, as long as you are keeping a good separation between the front and back of the speaker (ie, a sealed box or sufficient room for a ported box), the sound is going to make its way through the seat with no problems. Worst case, bolt the box to the trunk floor and you will find that this will transmit the bass through the body of the car and it will make it into the passenger compartment with no problems.
#3
roblox84, no need to cut any metal back there. If you look in the center, there are already 2 large holes cut there. Secondly, with the nature of the bass notes, as long as you are keeping a good separation between the front and back of the speaker (ie, a sealed box or sufficient room for a ported box), the sound is going to make its way through the seat with no problems. Worst case, bolt the box to the trunk floor and you will find that this will transmit the bass through the body of the car and it will make it into the passenger compartment with no problems.
#4
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roblox84, did you have the speakers facing into the seats with the speakers up tight against the seats? if so, that was your problem. You need to have the speakers away from anything soft in an area that is within a radius of the speaker. If you put something in this area, you deaden the pressure wave and yes, it will kill the pressure wave making the music. Hence why when you laid the seat down, you removed the item blocking the speaker, allowing the sound to be properly created.
#5
I actually had the subs tight up against the seats but facing away from the seats towards the trunk opening. I'll take your advice and try again, just waiting for the sub to come in. Although I don't really care anymore about the loudness since the sub is only about 300 watts, just something to add a little bass to the crappy stock speakers. I'm just hoping it won't sound so muffled again as the other sub did with the seats up.
#6
roblox84, no need to cut any metal back there. If you look in the center, there are already 2 large holes cut there. Secondly, with the nature of the bass notes, as long as you are keeping a good separation between the front and back of the speaker (ie, a sealed box or sufficient room for a ported box), the sound is going to make its way through the seat with no problems. Worst case, bolt the box to the trunk floor and you will find that this will transmit the bass through the body of the car and it will make it into the passenger compartment with no problems.
#7
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funkdoktor, the X-TYpe has factory subs in some cases (premium sound system). These get mounted to the rear shelf from the trunk side and the speakers sit in 2 holes in the center of this shelf. The rear shelf fabric has spots in it to let the sound come through in the sound deadening material. But, you would leave the colored fabric in place as this will let the sound come through.
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#8
Yep, like this;
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Have a look under the parcel shelf and the cutouts for the woofers are actually offset to the left like that.
Can't see it when the parcel shelf is in though...
This image has been resized. Click this bar to view the full image. The original image is sized 480x640 and weights 74KB.
Have a look under the parcel shelf and the cutouts for the woofers are actually offset to the left like that.
Can't see it when the parcel shelf is in though...
#9
#10
That's really weird. What year is your car....?
I think it's not worth cutting holes like that unless you actually want to put some speakers in them.
Sorry I don't understand...
There are different parcel shelf's depending on if the car had Premium Sound from the factory or not. I bought that one from a wrecker in the UK. It's quite a job to get the parcel shelf out, you can see the steps in the instructions for fitting the rear parking sensors HERE
I think it's not worth cutting holes like that unless you actually want to put some speakers in them.
#11
funkdoktor, the X-TYpe has factory subs in some cases (premium sound system). These get mounted to the rear shelf from the trunk side and the speakers sit in 2 holes in the center of this shelf. The rear shelf fabric has spots in it to let the sound come through in the sound deadening material. But, you would leave the colored fabric in place as this will let the sound come through.
#12
Cambo....My jag is a 2002. I'm thinking my original idea of cutting the wall behind the handrest is best because where those holes are in my car there is a thick foam sound proofing material covering them which would be a pain to cut out. The other reason is when I had an amp installed previously the installer accidently drilled the mounting screws right through that wall behind the arm rest and it looks like **** because now I just cover the holes with a big piece of felt. I just wouldnt know where to start because I want to make sure I only cut the metal behind the arm rest and not the seat. Maybe I should drill 4 holes from the interior into the arm rest wall to use as a guide and just cut out a square in between those holes? I mean would the sparks or debris from the saw ruin the interior?
#13
Cambo....My jag is a 2002. I'm thinking my original idea of cutting the wall behind the handrest is best because where those holes are in my car there is a thick foam sound proofing material covering them which would be a pain to cut out. The other reason is when I had an amp installed previously the installer accidently drilled the mounting screws right through that wall behind the arm rest and it looks like **** because now I just cover the holes with a big piece of felt. I just wouldnt know where to start because I want to make sure I only cut the metal behind the arm rest and not the seat. Maybe I should drill 4 holes from the interior into the arm rest wall to use as a guide and just cut out a square in between those holes? I mean would the sparks or debris from the saw ruin the interior?
#14
I also thought the fabric might get loose. What my idea is, putting a sort of rubber framing around the cut part. The best way I can explain this is picture one of those wire looms that have the slit in it to tuck wires into only I would like to find something like that but rubber that way it will also hold the cut edge of the fabric. Im pretty sure ive seen something like that sold but for some other purpose.
Edit....I have just found a pic of what may be good to use around the edge of arm rest wall once it's cut out.
Edit....I have just found a pic of what may be good to use around the edge of arm rest wall once it's cut out.
Last edited by roblox84; 12-22-2011 at 10:13 PM.
#15
I also thought the fabric might get loose. What my idea is, putting a sort of rubber framing around the cut part. The best way I can explain this is picture one of those wire looms that have the slit in it to tuck wires into only I would like to find something like that but rubber that way it will also hold the cut edge of the fabric. Im pretty sure ive seen something like that sold but for some other purpose.
Edit....I have just found a pic of what may be good to use around the edge of arm rest wall once it's cut out.
Edit....I have just found a pic of what may be good to use around the edge of arm rest wall once it's cut out.
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