the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

Amplifier Noise


Post ReplyPost New Topic
< Prev Topic Next Topic >
dstang24 
Copper - Posts: 98
Copper spacespace
Joined: September 06, 2005
Location: United States
Posted: April 02, 2015 at 5:24 PM / IP Logged Link to Post Post Reply Quote dstang24
All,
It's been a while and I've left the industry... I am having a problem with a system I installed in a friend's 2011 Jeep Grand Cherokee...
System: Factory CD Player to 4-ch LOC to Boston GT-42 4-ch amp. Amplified factory front speakers and bridged to fiberglass ported Boston G3 10" Subwoofer.
The problem is a noise that comes and goes - about 7kHz-12kHZ that seems to grow louder at times, only in the left front speaker. The amplifier is still putting out the music and the noise is a constant volume and frequency (not alternator wine). It s a weird gremlin that I'm not sure of the source. I have not yet dug out the amplifier as it's a stealth install. My intuition tells me that it's coming from somewhere pre-amplifier (LOC or head unit). Does anyone have any thoughts as to which is the most likely culprit? I'd like to start at the place of highest probability.
My process to troubleshoot will be to direct connect another audio source to the amplifier (iPhone 3.5mm to RCA). From there I will swap the LOC channels and see if the sound comes from the RF speaker. I'll do this on the input of the LOC and the output to determine if it's prior to or at the LOC. Thanks!
Team Edge Audio
dstang24 
Copper - Posts: 98
Copper spacespace
Joined: September 06, 2005
Location: United States
Posted: April 02, 2015 at 5:25 PM / IP Logged Link to Post Post Reply Quote dstang24
Basic audio system (amplified fronts from the after market Amp).
Team Edge Audio
tedmond 
Gold - Posts: 4,610
Gold spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: January 06, 2007
Location: Ontario, Canada
Posted: April 09, 2015 at 12:36 AM / IP Logged Link to Post Post Reply Quote tedmond
get the signal pre amp into the loc. getting it after generally causes noise.
Ted
2nd Year Tier 1 Medical School
Still installing as a hobby...pays for groceries
Compustar Expert

If you wish to post a reply to this topic, you must first login.
If you are not already registered, you must first register.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Thursday, October 31, 2024 • Copyright © 1999-2024 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer