Puzzling out of balance problem - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 8th October 2012, 06:39 PM   #1
mk57 is offline mk57  United States
diyAudio Member
 
Join Date: Jan 2011
Default Puzzling out of balance problem

I continue to not be able to get a centered sound stage in my system, the Lt side is always louder. Different amps, cables, buffer no buffer and currently I have the dac connected to the amp no buffer or preamp. 3 different speaker pairs and still the same, There is defiantly more sound to that side. I have swaped inputs on the amp to no avail. Any Ideas????
  Reply With Quote
Old 8th October 2012, 06:59 PM   #2
DF96 is offline DF96  England
diyAudio Member
 
Join Date: May 2007
See a doctor?
  Reply With Quote
Old 8th October 2012, 07:13 PM   #3
Bensen is offline Bensen  Belgium
diyAudio Member
 
Bensen's Avatar
 
Join Date: May 2003
Location: Belgium, Limburg
Does it stays the same when you are standing backwards towards your speakers


No, just kidding.
Could it be the room / positioning of speakers that is causing this effect?
If I where you, I think I would connect a frequency generator at both inputs and checked whether the output signal of both channels would be identical.

Last edited by Bensen; 8th October 2012 at 07:20 PM.
  Reply With Quote
Old 8th October 2012, 07:26 PM   #4
Mooly is online now Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
It could be the room acoustics and reflections causing an image shift.

What you need to do first is prove the equipment is OK so play a test tone (say 100 to 400hz) that's recorded at a low enough level such that you can set your volume control as you normally would. Then connect a DVM on AC volts across each speaker (you need one that has moderate resolution at low level and not one that just displays 1 volt, 2 volt 3 volt etc as the level goes up). The readings should be within a few tenths of millivolts between channels.

If that is so then you have a problem with the room or possibly (and I hope not) with your hearing.

Something like a portable CD player and test disc make a good source.
__________________
-------------------------------------------------------
Installing and using LTspice. From beginner to advanced.
  Reply With Quote
Old 8th October 2012, 08:12 PM   #5
sreten is offline sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
Hi,

a) Swap input connections, no change ? b) swap speaker connections ?
no change ? You have an acoustics problem *. A change for a) is an
input problem and a change for b) is an amplifier problem.

rgds, sreten.

* Or a minor hearing problem, I have, I need to sit right of centre.
__________________
There is nothing so practical as a really good theory - Ludwig Boltzmann
When your only tool is a hammer, every problem looks like a nail - Abraham Maslow
  Reply With Quote
Old 8th October 2012, 10:03 PM   #6
mk57 is offline mk57  United States
diyAudio Member
 
Join Date: Jan 2011
You can stand in front of each side and tell the L is louder then the R . when I put my hand over the rear port you feel the difference in output. I will check the voltage tonight. My hearing is OK
  Reply With Quote
Old 8th October 2012, 11:09 PM   #7
diyAudio Member
 
Join Date: Jul 2004
Location: MD, USA
I'd run some room acoustics measurements first. Calibrated EMC8000 + REW (Room EQ Wizard) is a good and inexpensive way to do it.
  Reply With Quote

Reply


Hide this!Advertise here!
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lepai LP-2020A+ Balance Problem Nightcry7 Class D 3 14th September 2012 04:16 PM
LM3875 kit puzzling problem: thoughts appreciated simplicity Chip Amps 16 26th February 2011 10:58 AM
Pioneer SA-6500II - Balance problem? signsofrain Solid State 3 27th April 2009 01:12 AM
Sonic Impact balance problem? nukegoat Class D 9 21st September 2007 08:45 PM
Balance problem - room layout??? JDeV Everything Else 3 22nd September 2003 07:36 PM


New To Site? Need Help?

All times are GMT. The time now is 08:35 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2