Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > Electronics > Mobile Electronics Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Today's Posts New Posts

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 03-10-2006, 07:52 PM
Vendor
 
Join Date: Jul 2005
Location: Portland OR
Posts: 499
el_duderino is on a distinguished road
sound system upgrade - 2006 X3 non-DSP

We just did a basic, stealth audio upgrade for a 2006 X3.

Some pics are here: http://kward1.homestead.com/2006BMWx3.html

You can see how the door speakers play like 150 and up, and the tweeter plays like 10k and up, and the underseat woofers play like 300 and down - all with dramatic EQ curves.

The OP of the HU, however, is flat as a pancake and goes to 6.8v p-t-p without clipping. (3.4 usable with balanced-compatible amps).

The HU is not as clean as other BMW HUs I've worked with - the last 6-7 clicks on the volume knob are clipping like mad. Keep below that and you're OK.
__________________
musicar northwest, portland oregon

musicarnw.com

The West Coast BMW audio experts

Last edited by el_duderino; 03-10-2006 at 08:14 PM.
Reply With Quote

Sponsored Links

  #2  
Old 03-11-2006, 12:51 AM
statdoc's Avatar
Master of Disaster
 
Join Date: Aug 2005
Location: Florabama
Posts: 4,236
statdoc is on a distinguished road
Looks nice, Ken.
__________________
Reply With Quote
  #3  
Old 03-11-2006, 12:08 PM
Vendor
 
Join Date: Jul 2005
Location: Portland OR
Posts: 499
el_duderino is on a distinguished road
Thanks. Seem to not have any 4" mid pics... grr.

There might be an issue with the jumper config on the Zapco BTL unit. On many BMW's in the past, installers have run the OEM balanced preout signals straight into the amp without using a BTL. The BTL is a bare-wire-to-Symbilink-balanced adapter, and we used it in this car rather than chop a Symbilink cable in half.

The BTL jumper configuration we settled on was electrically the same thing, though - bypassing the caps and resistors on the board and making it a straight line pass-through. With caps in and no resistors the highs sounded glare-y and harsh. We did not hear a difference between no caps and no caps-or-resistors.

But... we have an intermittent problem with the HU going silent after a key cycle and not sending audio out either the F (going to the Zapco) or the rear (still going to the OEM amp!) until after the Zapco is disconnected. The moment the Zapco is disconnected the audio comes back out of the HU!

So I'm thinking that we needed to leave at least the resistor portion in there. We are going to test my theory this morning. More updates as they appear on this and other stations.
__________________
musicar northwest, portland oregon

musicarnw.com

The West Coast BMW audio experts
Reply With Quote
  #4  
Old 03-11-2006, 02:49 PM
Vendor
 
Join Date: Jul 2005
Location: Portland OR
Posts: 499
el_duderino is on a distinguished road
OK, fix seems to be setting the jumpers on the Zapco BTL to "C".

However, fun fact - we only could create the problem with the Icelink connected. Disconnected, it worked fine.

I can only conjecture that the current draw of the Icelink and the current draw internal to the current module of the preamp chip seeing the Zapco Symbilink front end combined to freak out some current-limiting feature of the preamp output IC.
__________________
musicar northwest, portland oregon

musicarnw.com

The West Coast BMW audio experts
Reply With Quote
  #5  
Old 03-11-2006, 06:01 PM
FeelGoodUnInc's Avatar
Member
 
Join Date: Jul 2005
Location: Hollyhood, CA
Posts: 678
FeelGoodUnInc is on a distinguished road
looking good ~...maybe offtopic but...what size is our rear speakers, the one above the 6.5"..is it a 3" or 4"?
__________________
Reply With Quote
  #6  
Old 03-11-2006, 08:39 PM
Vendor
 
Join Date: Jul 2005
Location: Portland OR
Posts: 499
el_duderino is on a distinguished road
It's 2". If you have to use it put a tweeter there. Or don't use rears.
__________________
musicar northwest, portland oregon

musicarnw.com

The West Coast BMW audio experts
Reply With Quote
  #7  
Old 05-03-2006, 04:39 PM
Member
 
Join Date: Apr 2006
Location: Nebraska
Posts: 50
vwsnaps is on a distinguished road
Why dont ya make a mold and sell them!!


Id buy one.


I just called and talked to Justin about it!
Reply With Quote
Reply

Bookmarks


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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 10:52 AM.
vBulletin, Copyright 2025, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.