E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > BAVSOUND Mobile Electronics Forum

BAVSOUND Mobile Electronics Forum
Have all your A/V and electronics questions answered here. Ipods, A/V, Radar Detectors Oh My!
Sponsored by BAVSOUND

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 09-09-2016, 03:13 AM   #1
belok
Registered User
 
Join Date: Sep 2016
Location: Venice, CA
Posts: 18
My Ride: BMW 325Ci 2003
Amp for factory Hi-Fi speakers?

Hi guys,

I replaced my OEM navi/stereo with Erisin chinese aftermarket stereo navigation.
I left my factory speakers (Hi-Fi system) but my factory amp is out of the game now.
Can I use some adaptor to connect my factory amp? Or better to buy aftermarket amp? What is better solution for the factory speakers (sound quality, price, amount of work)?

Thanks!
belok is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 09-09-2016, 09:16 AM   #2
markusmarkus
Registered User
 
Join Date: Jul 2008
Location: USA
Posts: 4,768
My Ride: 2001 330Ci
Amp for factory Hi-Fi speakers?

The factory amp is actually very good quality. It's underpowered but it still produces great sounds.

That said, the signals between the factory head unit and the factory amp are balanced differential signals. Google it. They are typically of a greater voltage than the "line level"/RCA signal produced by the typical aftermarket head unit. You can connect the new head unit directly to the factory amp (search for the wiring diagram and/or adapters; www.crutchfield.com may have an adapter). But it's a crap shoot as you can end up with music that's not very loud. Again, it depends on the aftermarket head unit.

First, you need to figure out your budget. Car audio can get very expensive, especially if you're paying a shop to do the work. The best bang for the $ is to replace the front speakers. The woofers in the front doors are 6.25" in diameter. 6.5" diameter woofers will fit with an adapter. The mid-range and the tweeter sit in the pod in the door. The mid speaker is 2" in diameter. The tweeter is tiny.

Again, go to crutchfield to see what fits.

Last edited by markusmarkus; 09-09-2016 at 09:18 AM.
markusmarkus is offline   Reply With Quote
Old 09-10-2016, 01:05 PM   #3
belok
Registered User
 
Join Date: Sep 2016
Location: Venice, CA
Posts: 18
My Ride: BMW 325Ci 2003
Quote:
Originally Posted by markusmarkus View Post
The factory amp is actually very good quality. It's underpowered but it still produces great sounds.
Quote:
Originally Posted by markusmarkus View Post
You can connect the new head unit directly to the factory amp (search for the wiring diagram and/or adapters; www.crutchfield.com may have an adapter). But it's a crap shoot as you can end up with music that's not very loud.
I'm confused...

PS Did not find any adaptors on that site
belok is offline   Reply With Quote
Old 09-11-2016, 08:22 AM   #4
markusmarkus
Registered User
 
Join Date: Jul 2008
Location: USA
Posts: 4,768
My Ride: 2001 330Ci
The signals sent by the factory head unit are balanced differential signals. The voltage level of these signals is greater than those in "line level"/RCA signals. So, if you send line level signals to the factory amp the sound may not be very loud.
markusmarkus is offline   Reply With Quote
Old 09-11-2016, 05:00 PM   #5
belok
Registered User
 
Join Date: Sep 2016
Location: Venice, CA
Posts: 18
My Ride: BMW 325Ci 2003
Quote:
Originally Posted by markusmarkus View Post
The signals sent by the factory head unit are balanced differential signals. The voltage level of these signals is greater than those in "line level"/RCA signals. So, if you send line level signals to the factory amp the sound may not be very loud.
I understand. But if I keep the factory amp, the signal to it will go not by RCA signals. Factory amp doesn't have RCA input. So the signals will be the same. As I understand..
belok is offline   Reply With Quote
Reply

Tags
amp, amplifier, hifi, speakers oem, speakers oem non-hk

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 10:01 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
(c) 1999 - 2016 performanceIX Inc - privacy policy - terms of use