Sub Location

mototrmpt · 01-04-2010, 01:10 PM

I know there has been quite a bit of discussion on using a sub enclosure by Zenclosures or hiding one in the spare tire area.

I would like a bit more bass, but I definitely don't need something bone crushing. Has anyone considered or tried to put a small sub enclosure (either two 6" subs or one 8" sub) in the small cavity behind the cross brace. The area currently has a foam piece there. I think some folks have placed their amp in that area. Seems like one would fit and it would be pretty well hidden and not have the issues of fooling with the spare tire.

Any thoughts?

Thanks.

CBRich · 01-04-2010, 01:31 PM

I just took a quick glance but the area is no deeper than 3 or 4 inches and not even that wide. I'm not sure how you would mount anything over a 6x9 in that area.

bigaudiofanat · 01-04-2010, 02:29 PM

I agree with Rich also 6.5 inch woofers would not make very good bass for equaling a sub. I understand that you just want some bass and I am the same way. A 8 inch sub will work but you have to keep in mind location can make a sub great or can make it sound like crap. Also the size of the enclosure make a difference as well. By having a sub facing the back of the trunk you will get more bass than one facing up where the spare is or facing forward. I do not think were you are thinking of putting woofers or subs would be a very well place.

postrin · 01-04-2010, 03:11 PM

I'm sorry, but I completely disagree with this, I think 2 JL 6W3v3 subs in a fiberglass enclosure firing up in that cavity would be awesome! I put 2 of the JL 6W3s in a porsche 911 firing up and they rocked, not deep pounding bass, but stellar performance. I'm not sure if the cavity is deep enough, but i think you could easily make it work!

Paul

CBRich · 01-04-2010, 03:25 PM

Postrin, do you have a Z and have you looked at the location he is talking about? We're not talking about the area between the brace and the passenger compartment. We're talking about the area under that beneath the floor. It is extremely small. I'll try to get a pic later.

postrin · 01-04-2010, 03:56 PM

I do not own one, I have worked on several, and have one at the shop now, I know the area he is speaking about, it is pretty shallow, but we have put amplifiers in that spot, It is a lot wider than it looks when all the plastic trim pieces are out. I don't know if it is deep enough, but if you were to build a all fiberglass enclosure, you could also build a fairly nice fiberglass trim piece for the top.

CBRich · 01-04-2010, 04:09 PM

I assume the piece you are talking about building would protrude out from the area?

Sigur · 01-04-2010, 04:43 PM

2 JL 6w3v3's would fit fine without prodruding from that space. Wouldn't really need fiberglass unless you just wanted to.

mototrmpt · 01-04-2010, 05:58 PM

Sorry for any confusion I may have started. I'm thinking of the area behind the strut bar and in front of the metal reinforcement (thanks AK for the use of your picture).

I thought it was about 10-11" wide, but I forgot how tall the space is. Regardless, I think I'm going to try a small sub enclosure in the trunk space to see how much of a issue it really is. I'm thinking of Rockford Fosgate P3L-S10. It seems small enough to not take up too much space and if I need to, I can yank it out of the car.

bigaudiofanat · 01-04-2010, 06:14 PM

You might be able to put a 8 inch there but it is going to be tight. Also make sure to heavily dynamat the area around the fiberglass enclosure. I would not recommend 6 inch woofers to act as subs. They will not be able to reproduce the frequency's a 8 or 10 inch sub would do.

CBRich · 01-04-2010, 07:02 PM

I just went out and measured it. It is about 34" long which is plenty. The depth is about 7.5 inches which isn't too bad. But the width is only about 8". Even for a 6" sub that is pretty tight but may be big enough for certain subs.

pg6speed · 01-04-2010, 07:12 PM

I looked into putting two 8's in that area it can be done if the box is glassed but the face of the subs would protrude out of the space a little bit to fit correctly. I decided to put them behind the seats. Link to the thread Install (picture heavy)
Its the first time Ive run 8's and to be honest if you want lows go with 10's or larger. I'll be changing mine up soon.

37Z · 01-04-2010, 07:52 PM

Quote:

Originally Posted by CBRich

I just went out and measured it. It is about 34" long which is plenty. The depth is about 7.5 inches which isn't too bad. But the width is only about 8". Even for a 6" sub that is pretty tight but may be big enough for certain subs.

I may do a custom sub enclosure in this area, unless I can pursade Mike (Zenclosures) to fab a sub box for this area. I recall that the area between the rear strut area and the plastic piece located behind the seats is approx. 8 1/2 inches wide (including the area under the plastic lip). One could angle the sub slighting towards the rear to gain some needed width and install a sub grate to make the floor flush and protect the sub from damage.

A 8" sub might be a tight fit inside a sub box, but may fit. Let everyone know if you install a sub in this location since several members have indicated locating a sub in this area. I believe that most 8" subs need approx. 1 to 2 cubic feet for sub enclosured space for optimum sound. Big may enlighten us noobs on this manner.

I am planning to locate the amp in this area as well. Any thoughts?

bigaudiofanat · 01-04-2010, 07:58 PM

A amp AND a sub there? No I would not recommending trying it either. A amp would do much better there as a sub such as a 8 would need more space. Remember it is not just the size of the sub but as I said the size of the box it is in and how it is faced. I second going with a 10 inch over a 8 as speed said.

CBRich · 01-04-2010, 09:06 PM

I just did some rough calculations with my measurements and you're looking at about 1.18 cubic feet of space in that hole not including the space a sub would occupy. If you went with the subs Sigur spoke of they would each occupy .03 cubic feet of space in the box. That puts you at 1.12 cubic feet of usable space. Each sub requires at least .18 cubic feet in a sealed enclosure which is pretty darn good.

In other words you could theoretically place two 6w3v3's in this area and it could work properly, but how much bass are you really gaining?

01-04-2010, 01:10 PM	#1 (permalink)
mototrmpt Base Member Join Date: Nov 2009 Location: Salt Lake City Posts: 57 Drives: 09 370Z M6 Rep Power: 15	Sub Location I know there has been quite a bit of discussion on using a sub enclosure by Zenclosures or hiding one in the spare tire area. I would like a bit more bass, but I definitely don't need something bone crushing. Has anyone considered or tried to put a small sub enclosure (either two 6" subs or one 8" sub) in the small cavity behind the cross brace. The area currently has a foam piece there. I think some folks have placed their amp in that area. Seems like one would fit and it would be pretty well hidden and not have the issues of fooling with the spare tire. Any thoughts? Thanks.

01-04-2010, 02:29 PM	#3 (permalink)
bigaudiofanat Car Audio Installer Join Date: Jun 2009 Location: Magnolia DE Posts: 8,342 Drives: 2012 Infiniti G37x Rep Power: 853	I agree with Rich also 6.5 inch woofers would not make very good bass for equaling a sub. I understand that you just want some bass and I am the same way. A 8 inch sub will work but you have to keep in mind location can make a sub great or can make it sound like crap. Also the size of the enclosure make a difference as well. By having a sub facing the back of the trunk you will get more bass than one facing up where the spare is or facing forward. I do not think were you are thinking of putting woofers or subs would be a very well place. __________________ Need help with car audio or electronics? Let me know!! Need Help Let Me Know Direct email address reimermatt@gmail.com Owner of: Dynamic Mobile Audio Follow me below https://www.facebook.com/Dynamicmobileaudio/

01-04-2010, 03:56 PM	#6 (permalink)
postrin Base Member Join Date: Dec 2009 Location: Houston Posts: 23 Drives: Tacoma Rep Power: 15	I do not own one, I have worked on several, and have one at the shop now, I know the area he is speaking about, it is pretty shallow, but we have put amplifiers in that spot, It is a lot wider than it looks when all the plastic trim pieces are out. I don't know if it is deep enough, but if you were to build a all fiberglass enclosure, you could also build a fairly nice fiberglass trim piece for the top. Last edited by postrin; 01-04-2010 at 03:59 PM.

01-04-2010, 06:14 PM	#10 (permalink)
bigaudiofanat Car Audio Installer Join Date: Jun 2009 Location: Magnolia DE Posts: 8,342 Drives: 2012 Infiniti G37x Rep Power: 853	You might be able to put a 8 inch there but it is going to be tight. Also make sure to heavily dynamat the area around the fiberglass enclosure. I would not recommend 6 inch woofers to act as subs. They will not be able to reproduce the frequency's a 8 or 10 inch sub would do. __________________ Need help with car audio or electronics? Let me know!! Need Help Let Me Know Direct email address reimermatt@gmail.com Owner of: Dynamic Mobile Audio Follow me below https://www.facebook.com/Dynamicmobileaudio/ Last edited by bigaudiofanat; 01-04-2010 at 06:17 PM.

01-04-2010, 07:12 PM	#12 (permalink)
pg6speed Base Member Join Date: Jul 2009 Location: San Antonio Posts: 223 Drives: 10 Armada Rep Power: 16	I looked into putting two 8's in that area it can be done if the box is glassed but the face of the subs would protrude out of the space a little bit to fit correctly. I decided to put them behind the seats. Link to the thread Install (picture heavy) Its the first time Ive run 8's and to be honest if you want lows go with 10's or larger. I'll be changing mine up soon. __________________ STILLEN G3 / F.I. TDX (NO RESONATORS) / F.I. LTH / UpRev Tuned / BC-Racing ER Coilovers / DIY Oil Cooler / Short Shifter

01-04-2010, 01:31 PM	#2 (permalink)
CBRich A True Z Fanatic Join Date: Apr 2009 Location: SC Posts: 2,464 Drives: 370Z Rep Power: 544	I just took a quick glance but the area is no deeper than 3 or 4 inches and not even that wide. I'm not sure how you would mount anything over a 6x9 in that area.

01-04-2010, 03:11 PM	#4 (permalink)
postrin Base Member Join Date: Dec 2009 Location: Houston Posts: 23 Drives: Tacoma Rep Power: 15	I'm sorry, but I completely disagree with this, I think 2 JL 6W3v3 subs in a fiberglass enclosure firing up in that cavity would be awesome! I put 2 of the JL 6W3s in a porsche 911 firing up and they rocked, not deep pounding bass, but stellar performance. I'm not sure if the cavity is deep enough, but i think you could easily make it work! Paul

01-04-2010, 03:25 PM	#5 (permalink)
CBRich A True Z Fanatic Join Date: Apr 2009 Location: SC Posts: 2,464 Drives: 370Z Rep Power: 544	Postrin, do you have a Z and have you looked at the location he is talking about? We're not talking about the area between the brace and the passenger compartment. We're talking about the area under that beneath the floor. It is extremely small. I'll try to get a pic later.

01-04-2010, 04:09 PM	#7 (permalink)
CBRich A True Z Fanatic Join Date: Apr 2009 Location: SC Posts: 2,464 Drives: 370Z Rep Power: 544	I assume the piece you are talking about building would protrude out from the area?

01-04-2010, 04:43 PM	#8 (permalink)
Sigur Base Member Join Date: Sep 2009 Location: Houston, TX Posts: 92 Drives: 09 370Z BS M6 Rep Power: 16	2 JL 6w3v3's would fit fine without prodruding from that space. Wouldn't really need fiberglass unless you just wanted to.

01-04-2010, 07:02 PM	#11 (permalink)
CBRich A True Z Fanatic Join Date: Apr 2009 Location: SC Posts: 2,464 Drives: 370Z Rep Power: 544	I just went out and measured it. It is about 34" long which is plenty. The depth is about 7.5 inches which isn't too bad. But the width is only about 8". Even for a 6" sub that is pretty tight but may be big enough for certain subs.

01-04-2010, 07:58 PM	#14 (permalink)
bigaudiofanat Car Audio Installer Join Date: Jun 2009 Location: Magnolia DE Posts: 8,342 Drives: 2012 Infiniti G37x Rep Power: 853	A amp AND a sub there? No I would not recommending trying it either. A amp would do much better there as a sub such as a 8 would need more space. Remember it is not just the size of the sub but as I said the size of the box it is in and how it is faced. I second going with a 10 inch over a 8 as speed said. __________________ Need help with car audio or electronics? Let me know!! Need Help Let Me Know Direct email address reimermatt@gmail.com Owner of: Dynamic Mobile Audio Follow me below https://www.facebook.com/Dynamicmobileaudio/

01-04-2010, 09:06 PM	#15 (permalink)
CBRich A True Z Fanatic Join Date: Apr 2009 Location: SC Posts: 2,464 Drives: 370Z Rep Power: 544	I just did some rough calculations with my measurements and you're looking at about 1.18 cubic feet of space in that hole not including the space a sub would occupy. If you went with the subs Sigur spoke of they would each occupy .03 cubic feet of space in the box. That puts you at 1.12 cubic feet of usable space. Each sub requires at least .18 cubic feet in a sealed enclosure which is pretty darn good. In other words you could theoretically place two 6w3v3's in this area and it could work properly, but how much bass are you really gaining? Last edited by CBRich; 01-05-2010 at 12:35 PM.