E90Post
 


GTB Performance
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > Strange issue with L7 and alpine amp



Reply
 
Thread Tools Search this Thread
      04-19-2010, 08:15 PM   #1
335R1
Private First Class
335R1's Avatar
5
Rep
108
Posts

 
Drives: F30 335i
Join Date: Dec 2009
Location: Connecticut

iTrader: (0)

Strange issue with L7 and alpine amp

I had rockford fosgate prime amp 2 months and it worked fine. Then all of sudden the amp would intermittenly shut off. Bass would start cutting out when it's about to hit. Order a new rockford amp last week and same thing happened. Just installed the Alpine amp today and something strange is happening. With the trunk open, the sub works fine. With the trunk closed, i'd get a continuous feed. A constant signal. The sub would just rumble nonstop. What gives?
Appreciate 0
      04-19-2010, 08:35 PM   #2
fdriller9
Banned
United_States
101
Rep
7,090
Posts

 
Drives: '06 AW 330xi
Join Date: Mar 2009
Location: North Jersey/Philly/NYC

iTrader: (4)

Garage List
2006 330xi  [3.22]
How is it setup? Are you using a loc? I had a problem where bass would cut out randomly. I found out it was loose ground.
Appreciate 0
      04-19-2010, 09:50 PM   #3
335R1
Private First Class
335R1's Avatar
5
Rep
108
Posts

 
Drives: F30 335i
Join Date: Dec 2009
Location: Connecticut

iTrader: (0)

my younger brother is a certified installer and even this has him stuped. He used a LOC, tested the ground and all connections. They all looked fine. I have constant power now. The problem now is the sub would rumble non stop with the trunk closed.
Appreciate 0
      04-20-2010, 06:29 AM   #4
Lee Rambler
Captain
United_States
7
Rep
605
Posts

 
Drives: 07 e92 335 6mt, 04 e53 x5 4.4
Join Date: Mar 2007
Location: PA

iTrader: (0)

grounding issue of the loc itself - it may be common ground internally. try a different brand loc.
Appreciate 0
      04-20-2010, 07:50 PM   #5
335R1
Private First Class
335R1's Avatar
5
Rep
108
Posts

 
Drives: F30 335i
Join Date: Dec 2009
Location: Connecticut

iTrader: (0)

Went through three loc. It's just starting to get ridiculous.
Appreciate 0
      04-21-2010, 06:02 AM   #6
Lee Rambler
Captain
United_States
7
Rep
605
Posts

 
Drives: 07 e92 335 6mt, 04 e53 x5 4.4
Join Date: Mar 2007
Location: PA

iTrader: (0)

do your underseats cut out as well?
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump


All times are GMT -5. The time now is 01:43 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST