Speaker Placement Advice
 

I would like some advice on how a 370Z experienced installer would go about setting up a system I am pondering. I realize 370 doors are pretty shallow and I don't really want door panels that are built out unless I have to go that route. I already kick the panels fairly often entering/exiting.

I am not completely sure what alternatives I have besides building a box that contains some of my mids, firing directly behind me. Then building the sub firing backwards; part of the same box.

Here is the component set I would like to get:

Legatia L641-3 Pro Component Speaker Set - 12v Electronics

As for the sub I will go with a single 12":

https://ssl.perfora.net/www.ficaraud...iew.shopscript

I like old amplifiers... I have some old PPI and Autotek amps stuck away that I will be using, so power is no concern (will probably just use PPI). But I am up for discussion on that also.

I do know some car audio people around here (DFW), but wanted to hear from the experienced 370 crowd first.

Thanks!

nice looking set, 7's will fit in the door with a spacer, under the stock door panel, 4's could go in the "tweeter" spot and the tweeter could go in the A piller. Someone on here has done that already, just can't remember who.

7 inch speakers you may have some clearance issues if it was a standard 6.5 I would say your ok.

Ok good advice. I didnt think the 7" could fit in the door clearance wise or depth wise. Thanks for replying.

ofcourse good advise. you got the 2 main stereo doods (90ST and Big) answering.. lol!

Very True! :tup:

Your mounting hole is slightly under 6", and due to the fact that you will need a spacer for the depth, it can easily be modified to fit quite nicely.
You definitely do not want your mids mounted behind you. Front stage will be completely lost. by all means, use your factory openings.

But they will...the Bose system is a 6x9, depth, once you make the spacer should be good, and i know there is more than a 1/4 more around a 6.5, so 7" should be good, the only real problem would be the 4.5" in the dash, you will most likely have to copy the stock grill and make your own plates for them.

Or what about doing the 631 set, with the 3.7" mid?

there should be any issue fitting those 7" midbasses in the doors. If you look at the speaker dimensions they are not too much larger than a standard 6.5" mid. I do not know off hand the exact dimensions of that factory mounting holes but i can guarantee you there will need to be an adapter plate made to properly mount the speaker to the door for depth reasons. This adapter will simultaneously make the diameter of the factory mounting hole not matter. The real question here is where to mount the midranges and tweeters. The factory tweeter locations are on the dash facing directly upward into the windshield. Could you put the mid there? Yes but more often than not windshield reflections are not ideal for optimal sound. I would definitely look into a-pillar placement for the midranges and tweeters but the real best way to determine what sounds best to you is to play with temporary placements. Use double sided tape or other temporary methods to mount and listen to the speakers and see what sounds best to you. Then move on to seeing what is required to make the best sounding mount permanent.

Some very sound advice from Big Nate regarding temporary placement for auditioning your speakers.... Placing the mids will be a difficult task without any protruding kick pods, or door mounted pods. even in the a pillars would IMHO seem a bit clunky.
You may be better served in your case to go with a 2 way setup, keeping a stock appearance.

The three issues I see that he may have with the woofers are: basket width, if they are to big he is going to have to cut metal out of the door which I know a lot of people do not like doing that. Second rear clearance, I know that the 6.5's I have installed have never had trouble however this could change with a 7 inch woofer. Third is front face clearance. The opening of the plastic cover or door panel is just about 6.5 give or take. If he goes bigger the cone surround could hit the back of the door panel.


A mid in the tweeters stock location could be very very close. Right under the tweeters bracket about 1/4 inch down is plastic so I am not sure if you are going to have clearance for a mid.

If you are seriously going to do a 2 or even 3 way setup I would highly recommend going with either a audison bitone or the more popular option the JBL MS8.

.....

iI have done Hertz as well but they are only 6.5, I still stand by what I say with saying he may have some issues with 7 inch.

The 631 would be fine also. I haven't looked at the depth on that. Perhaps that would remedy the issue BIG noted with the plastic limiting depth up there.

I will check out the Bit one and MS8, but honestly I don't want an overly complicated system. Well maybe that is the wrong way to put it. I don't want access to too much to tweak... the more stuff I have to tweak... well, I will be in my car 24/7 jacking with things lol.

Perhaps I should just stick with a 2-way and get the Legatia pro 6.5 set. Cutting metal, new grilles for the dash, extending door panels, etc., is not what I want. Unless, the 6.5 just don't give me what I want.

One of the installers has the 641 installed in their car and... it sounds very nice.

I really appreciate everyone's advice though. Keep the ideas coming if you have them.

:tup:

I have done a few 2 way setups "active" and yes there is a fair amount to tweak however the outcome is great. That is what you could use the MS8 or bit one for.

However you could do passive and just run the crossover that comes with the speakers out of the box.

I myself am getting ready to run a 3 way active setup in my altima. It is going to be some work however it will double as my demo car.

Wish you weren't on the opposite side of the country. I would love to check that out.

Do you have a list of amps, speakers, crossover, cables, etc yet? :tup:

Going to be:

Audison LRX 5.1K powering the fronts and the sub
MS8 for all the active stuff, and going to power stock rear speakers for when I have passengers.
Alpine INA-W910 Head unit
Image Dynamics 1 or 2 12 inch Q's
Focal KRX3
Kicker 4 gauge power wire
Stinger or kicker rca's

Also pm sent.

Thanks for the info :tup:

Bringing this one back. Haven't done anything quite yet still deciding lol, too many choices. What do you pro's think of the placement in these pics:

I like the idea of the speaker in the door AC duct...

http://videos.sonicelectronix.com/fo...sema2010-9.jpg

Now, if you look at the pillars behind the headreast's there is a mid tweet there... What do you guys think about that placement?

http://videos.sonicelectronix.com/fo...ema2010-13.jpg

Thanks for the input...

the mids in the a/c duct is kinda cool, and probably would work well if crossed at the right freq. The mids and tweets next to the headrests.....absolutely not....all for show.

Thats kind of what I was thinking also, didn't really make sense. I wish there was a little more room up front for another set of mids. Oh well, thanks for the reply.

Yes I have thought about putting tweeters in the vents, however you block 40% if not more of your air for the cabin. You would just have floor and the center vents and defrost.

Wouldnt it just divert more air to the center vents? I wouldn't think it would max them, but maybe? Ah well still on the search lol.

What kind of ideas did you have for fiberglass molding big?

Depending on what speaker you are running and what kind of sound processing you are doing, I myself am going to run my KRX3's off axis because the tweeters are not as harsh as say the polyglass line or other tweeters. I also will be running them active to give me a clear center front stage. The mid and tweeter will be on the a pillar. I know the Z has airbags located there, however you could also build up from the base of the stock tweeter locations and aim them however you would like. Another option is flush mount them in the doors, or the mirror cover you could build off that as well.

If I was you, I would use tape and mount the tweeters at different locations to give you an idea of what they will sound like. This way your not wasting time with building a pod for them.