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2003 eclipse, 2 alpine amps, 2 subs

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=91838
Printed Date: November 30, 2021 at 9:13 PM


Topic: 2003 eclipse, 2 alpine amps, 2 subs

Posted By: choier1983
Subject: 2003 eclipse, 2 alpine amps, 2 subs
Date Posted: March 18, 2007 at 2:35 PM

hi guys !! i am new to this forum and looking for some help to  upgrade my car system ! i have a 2003 mitsubishi eclipse which has a premium infinity sound system !! and i want to add 2 alpine amp and 2 subs (1 for speaker,and another for sub) and keep the head infinty unit (which have 6 cd changer) so i can control all the amp  but  i dont how  to hook up the wires and all the harness needed !!! so give me some advices and tools that i need to get !!! ( please give me  a little bit detail cause i am a liitle bit slow)   thanks for your time guys !!



Replies:

Posted By: j_darling2007
Date Posted: March 18, 2007 at 2:55 PM
Well, I am no professional but I think I can help you out. The infinity system is most likely amplified from the factory, meaning the speakers already have an amplifier driving them. You will have to get an amplifier bypass harness from Metra or another brand. Then, you will most likely have to take the new speaker leads from your head-unit and install a line-output converter. It will take the speaker leads and turn them into a RCA output. Then, run the RCA's to the amp and voila, you have a signal to the amplifier. For the subwoofer, just split the rear rca's to the subwoofer amp too.

Also, use a good, high quality Line output converter, or it will add noise to your RCA's.

Jacob

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There are 3 kinds of people in the world, those who can count and those who can't




Posted By: aznboi3644
Date Posted: March 18, 2007 at 3:20 PM
Why two amps and two subs???

The sound from the sub is all in the BOX BOX BOX!!

In that eclipse it is easy to get loud...one 12 in the right box will beat pretty hard.




Posted By: Velocity Motors
Date Posted: March 18, 2007 at 3:51 PM
Most amplifiers have a high level input built into them already. If the Alpine has such a feature, then just take the output from the Infinity amplifier and wire it into the high level input connector for the Alipne amplifier. As for the speaker's and the Alpine amplifier, what you have to do is find the output for each speaker at the OEM Infinity amp and cut it away from the OEM amp and wire it to the output of the Alpine amp. If the Alpine amp has a passthrough set of RCA's , then you can use this for the sub amp. Use the OEM amp turn on or the switched ignition to turn on the amplifiers.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA




Posted By: forbidden
Date Posted: March 18, 2007 at 5:31 PM

To add what Jeff has mentioned and to take the system to the next level, add something like a Audio Control LC6i or even better is a 6XS. This is a advanced interface adaptor that will bring the system to life. It also affords you the luxury of adding level control to the subs you will be adding.

www.audiocontrol.com



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Top Secret, I can tell you but then my wife will kill me.




Posted By: choier1983
Date Posted: March 18, 2007 at 5:31 PM
 i am appreciated your advices guys !! i do believe those  will help me to figure out what i should start with !!! specially thanks to Velocity Motorsports !! i definatelly need some more help during doing my upgrading ! thanks aagin !

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huy, nguyen




Posted By: choier1983
Date Posted: March 22, 2007 at 9:22 AM
whats up guys !! just a question about capacitor  amp power supply !!! so with an alpine  800w MRP-M850 and  50w *5  MRA - F350 theather amplifier ,what capacitor i should use? 4 farad will be ok ?

***admin edit: duplicate topics merged***

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huy, nguyen




Posted By: ferretvw
Date Posted: March 22, 2007 at 9:38 AM

Do a search for capacitors here and you will find that they do not actually do much at all. What you really need to do is upgrade your big three (again just do a search), and possibly upgrade your alternator a little more info about the car and speakers that are being used will help steer you in the right direction and hopefully away from that cap.

--->Richard



-------------
2008 Scion xB
Pioneer AVIC-D3
RF 3Sixty.2 sound processor
Stock speakers (for now ;))




Posted By: choier1983
Date Posted: March 22, 2007 at 9:44 AM
hey guy !! do i still have to use a fuse holder eventhough i will have  Digital Read-out Distribution Block  for the 2 amplifiers?   and if i want to put another battery into my car! do i have to use a fuse between the connection !! thank for your tiem guys !

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huy, nguyen




Posted By: 3rd gen
Date Posted: March 22, 2007 at 12:12 PM
If you are adding a 4 channel to your factory infinity speakers you will most definitely blow them out. The factory infinity system speakers run at 2 ohms and each have a separate channel at the amp.

The amp is located under the front passenger seat. I would recommend replacing the front components and 6x9's (leave the center unplugged) now, since you will have to replace them very soon anyways.

You will need the Metra 70-7003 amp integration harness to use the factory HU with the aftermarket amps.

I too have a third generation Eclipse. If you need any other info about any other part of the car, go over to www.club3g.com! We have a great community that is willing to help with every aspect!




Posted By: loosingmymind
Date Posted: March 22, 2007 at 2:10 PM

You could also run a piece of 9con to the amp under the passenger seat and pull the output plug from the amp. Test with a good multimeter or a speaker popper and find your channels. Then connect the 9con to the back of your head unit and the output plug on the amp. Test for ohm load also. You don't want to burn up your high level outputs. If needed replace the speakers at the end of the 4 channels you are going to use. You're bypassing your amp.

hope I helped you some,

David





Posted By: loosingmymind
Date Posted: March 22, 2007 at 2:13 PM

Also, allways fuse between every battery you use. Better safe than fire!!!

DAve





Posted By: aznboi3644
Date Posted: March 22, 2007 at 7:37 PM
If you add another battery the PROPER way to fuse is after the front battery AND before the rear battery




Posted By: choier1983
Date Posted: March 23, 2007 at 2:53 PM
so here the deal  guys!!! i am gonna have a alpine V12  5 *50 w channel amp  to upgrade my  amp !!!  so 4 channel will go to manufacor speaker and  can i add another 2 speckers which is 40W ea  to make it like 6.1 so what you guys think??

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huy, nguyen




Posted By: choier1983
Date Posted: March 23, 2007 at 4:12 PM

3rd gen wrote:

If you are adding a 4 channel to your factory infinity speakers you will most definitely blow them out. The factory infinity system speakers run at 2 ohms and each have a separate channel at the amp.

The amp is located under the front passenger seat. I would recommend replacing the front components and 6x9's (leave the center unplugged) now, since you will have to replace them very soon anyways.

You will need the Metra 70-7003 amp integration harness to use the factory HU with the aftermarket amps.

I too have a third generation Eclipse. If you need any other info about any other part of the car, go over to www.club3g.com! We have a great community that is willing to help with every aspect!

thanks for your help    3rd Gen!!! so you have the same car 2 !!  yearh !! actually i have a 5 channel alpine MRA-F350  so should i keep the infinity speaker !! or repace them? so what should i do if i want to keep those manufactor speaker !!



-------------
huy, nguyen




Posted By: choier1983
Date Posted: April 05, 2007 at 9:31 AM
hi have a 5.1 alpine channel amp which is 50 w per channel !! is it gonna perform the best with a 100 watt type R speaker for each channel or should i go with 50 watt or  60watt for each? thank for advance help guys !!




Posted By: 3rd gen
Date Posted: April 05, 2007 at 10:32 AM
Replace the Infinity speakers. I just replied to your post on club3g too!





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