Mitsubishi 3000GT & Dodge Stealth Forum banner

1 - 9 of 9 Posts

·
Senior Member
Joined
·
145 Posts
Discussion Starter #1
I just bought new sets of Pioneer speakers for the front (TS-C1653) and rear (TS-A6969) of my car. The front speakers are componant systems like the factories (door woofers & dash tweeters). However, I am having a few problems with these speakers...

1) How am I going to mount the dash tweeters in the oversized opening? Is there an easy fix to this problem? (i.e.: spray can top idea)

2) Do I still need to use the outboard crossovers that came with the system? Or will the factory setup suffice?

Thank you in advance for your help. I appreciate all the help that everyone on this message board has given me.

Ryan T.
1993 3000GT SL
#449
 

·
Registered
Joined
·
600 Posts
I don't know the size of the Pioneer Tweets but if they are like most, you can mount them on the door.

I haven't officially put up the audio section of my website yet, but check out www.linkline.com/personal/amahoser/frontspeakers.html to see what I am talking about.

As far as putting speakers in the dash, I have some Vifa mid/high's in there, but in order for them to fit, the speaker's basket had to be machined. Was it worth it? Nope....

Do you use the crossover that came with the speakers? Resounding YES! The crossover was specifically designed for the cabpabilities of those speakers. You have no idea of how the factory crossover works. Don't try it or you might blow your brand new tweeters!

Jose Soriano
[email protected] www.linkline.com/personal/amahoser


[This message has been edited by Amahoser (edited January 02, 2000).]
 

·
Senior Member
Joined
·
145 Posts
Discussion Starter #3
Jose Soriano,

Thanks for the help. However, I don’t understand something. My factory car speakers currently are component systems up front. There are two 6.5” woofers in each door and two 2.5” tweeters in each side of my dash. The new speakers I bought are the correct size as far as the woofers, but the tweeters are considerably smaller than the existing ones. I was wondering if any one has modified the existing tweeter mount to fit a smaller size tweeter. Also, if I were to use the supplied crossovers, would I have to rewire the everything to get them to work correctly? Sorry about the confusion and thanks for your concern in helping me out.

Ryan T.
1993 3000GT SL
#449

PS) Nice web page.
 

·
Registered
Joined
·
600 Posts
Ok, first off, in order to use the supplied crossover, you need to find the am or radio out that is full range. The Best way to find this is to look in a service manual and see where that connection is. Sometimes, the main speakers (door speakers) are full range and those will work. The tweets just have a filter that blocks low freqs. I am not sure if that's the way our cars are wired. You need to find out if the car comes with a factory amp. If it does, you need to wire from it. What year is your car? Mine is a '91 and I have the service manual for it. If yours is a '91 let me know and I'll take a look in my service manual.

As far as using the dash speaker location, you can come up with a bracket out of abs plastic that holds the speaker and then cover the entire thing in speaker cloth. BUT... I would suggest mounting it on the door pillar like my car. Door pillar mounting is a good compromise location.

here's a little write up on tweeter placement.

Tweeter position HUGELY affects sound quality. There are several locations that you can mount tweeters. Tweeters are the most directional of speakers. (Subs being the less directional) Ideally, you would mount the tweeters near the midrange speakers... but ideally the midrange speakers should be closer to ear level. (also, ideally, your chair would be in the direct center of the left and right speakers!) But since this is a car and it isn't the best listening enviorement for both our ears and speaker placement, certain compromises have to be made.

Ok, so your gonna mount the 6 1/2" in the stock location... ok, mounting the tweets beside them would make it sound like all the music is coming from below you. Not good. (so the "ideal" place doesn't work in the car enviroment).

Next you are thinking about putting the tweets in the dash factory position)... Now the tweets are pointed up toward the windsheild. Also, the left side tweet will be much louder than the right side tweet. This position does have one advantage. If you like to hear music IN FRONT of you, kinda like sitting in a theater and having everything happen in front of you, this is the best position for the tweets. However, you should angle the tweets so they face the windsheild. Drawback... imaging isn't as good and stereo seperation is less.

Ok, mounting the speaker in the door pillar. Check out the pic again at www.linkline.com/personal/amahoser/frontspeakers.html This mounting position (in my opinion) is the best compromise. You aim the tweeters so the drivers side tweeter points at the passenger seats head. And the passenger side tweeter points at the drivers head. This position has the LEAST amount of distance difference between the left and right tweets. The advantages to this type of speaker placement? Great streo seperation, good imaging and you feel like your part of the music... not just a spectator. (this is the way I like to listen to music.

So, I say again, you should probably mount the tweets on the door pillar. But once you figue out the wiring in your car, mount the 6 1/2's but leave the tweets out but connected. Put them in different locations like on the dash or on the pillar and listen for yourself. That way, you'll know if you have to come up with some sort of bracket to mount your speakers or not.

BTW... everything I said is my humble opinion. Some will disagree with me but this is what I have found out through countless audio systems in countless cars.

Jose Soriano
[email protected]
www.linkline.com/personal/amahoser
 
J

·
Guest
Joined
·
0 Posts
Ryan
Go to "member's sites" and click on Eric Bowden's page. He has a substantial database of stereo mods including pictures of dash mount tweeter installation.
 

·
Registered
Joined
·
29 Posts
Speaking of the subject of tweeters, I also have a few questions. I've already replaced the stock speakers with JBL Power Series, which sound great, BTW. Although the rear 6x9s weren't a perfect fit because the magnets are bigger, I was able to get them in there.

I was originally planning on just disconnecting the dash tweeters, since I now have four good tweeters in my car in addition to the dash tweeters, but the guy at one installation place said they couldn't do that because the dash tweeters were wired into the same lines as the door speakers. (I still don't understand why you can't just cut the wire or something to disconnect them, if they're wired in parallel.)

So the result is that I now have a really good sounding system, and the imaging is great, but it's a little bit high-end-happy. I've just been turning down the treble on my Alpine head unit a few notches to help compensate for the extra set of tweeters.

So, this brings me to my question. How are the dash tweeters really wired up? Is there a crossover in place somehow? And if I keep the stock tweeters hooked up, what's going to happen when I install a power amp? Will I end up blowing the stock tweeters? I have no idea what kind of power they handle, but I'm sure it's not on the same level as my JBLs.

Maybe I can get some kind of attenuator and just reduce the level of the stock tweeters? Is this feasible? How hard would it be to do? I don't really care if I give up a little bit of imaging in favor of better overall sound.

Ideally, maybe I could somehow disconnect the tweeters from the JBLs in my doors and put them in place of the stock tweeters, but I have no idea how difficult this would be...I imagine mounting them up there would be the hard part. Any thoughts?
 

·
Registered
Joined
·
321 Posts
This may sound a little strange to everyone but if you don't plan on using the factory speakers again and don't want to cut holes in your doors here is a fuctional solution. Take the factory tweets out of the dash. Notice that you can take the mesh grill off by bending the tabs. Tear out all of the speaker cone, down to the mag. Depending on the size of the tweeter (I too have a set of Pioneer tweets) they should sit on top of the factory mag. There is no real need to mount the speaker because the mag. will hold the new tweeter in place. Reatach the grill, correctely wire in the tweets and pop them back into the dash. It doesn't get any easier than that. I could be wrong but the tweeter seem to be able to withstand a little more power, I'm guessing because now there is more mag. (the factory mag. sitting under the new tweeter).

Just my $.02
 

·
Senior Member
Joined
·
145 Posts
Discussion Starter #9
Thanks for your help everyone! I think I am going to try Eric's paint can lid idea. I'll let you guys know how it turns out. Talk to you later.
Ryan T.
 
1 - 9 of 9 Posts
Top