Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 09-13-2016, 10:11 AM
Normdude's Avatar
Normdude Normdude is offline
Officially Welcomed to the 'Fest
Location: Long Island, NY "The Hamptons"
 
Join Date: Oct 2013
Posts: 148
Mein Auto: 2003 530i Sport
2003 E39, Aftermarket amp question

I'm trying to figure out what wire to hook an amp up to from my trunk. All the pictures and why are schematics I've seen don't match what I have. My Stock amp has three plugs. One 26 and two 12 pin plugs. I have the amp working but it doesn't respond with the volume. It just stays at one loudness. So I turn the volume down and the bass is still on. I have DSP. Does anyone have any pictures of the right wire I should tap into? I'd really appreciate it thank you
__________________
2003 530i Sport Package
1996 318i (blown head gasket )
Reply With Quote
Advertisement
  #2  
Old 09-13-2016, 10:33 AM
528iAut 528iAut is online now
Officially Welcomed to the 'Fest
Location: Moraira, Spain
 
Join Date: May 2016
Posts: 237
Mein Auto: 528i
With the DSP you already have an amp......did you remove that then?
__________________
E39 528i Steptronic 1996, Comfort seats, Rear curtain, Oxford Green.
Reply With Quote
  #3  
Old 09-13-2016, 01:56 PM
DennisCooper!'s Avatar
DennisCooper! DennisCooper! is offline
Officially Welcomed to the 'Fest
Location: West London / Heathrow UK
 
Join Date: Jan 2011
Posts: 2,413
Mein Auto: 03 Ex Cop 530d Touring
Hi,

You can't directly add a traditional 2/4/5 or even 6 channel aftermarket amplifier to the OEM DSP amp as it contains in internal crossover and outputs a specific band of frequencies per pair of outputs. Also, are you wishing to retain your (not very good) oem DSP speakers? if so, then you'll need to either purchase a JBL MS-8 processor with in built 8 channel amplifier rated at 8x30W RMS but is now discontinued, or the Mosconi ONE 60.8 processor with 8 channels of amplification, rated at 8X60W RMS. These units take the all outputs from the OEM DSP amplifier, use clever processing to 'clean' the signal up and then amplify it to output to either you oem DSP speakers or, more ideally, upgraded speakers.

If you are just trying to add some bass, then you can find out which speaker outputs from the DSP amp provide the 'low' frequencies and 'splice' to one channel of those and connect that to a speaker to RCA converter and then plug that output to the amplifier you are using. This method is the basic one and has limitations in terms of quality and performance. Also, due to the oem DSP amp RMS output not being all that powerful, any distortion you push it into to will be passed through the RCA converter to your amplifier, where it's then amplified and sent to your subwoofer. That distortion heats up the subwoofer voice coil and the number one reason for speaker failure is overheated voice coils. To compensate, you might turn the gain/bass down on the amplifier, which kind of defeats the purpose really. This method isn't one I'd recommend although it is the 'cheap and quick' way that many choose to do and are happy with the results. Plenty of those owners have then heard what's capable in a well setup and more quality orientated setup and been astonished in the difference

Cheers, Dennis!
Reply With Quote
Reply

See More Related BMW Stories


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)
Today's Posts Search
Thread Tools
Display Modes

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



Forum Jump


All times are GMT -7. The time now is 09:17 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001-2015 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms