left and right channels in stereo

Posted by Andy [IP: 209.135.83.41] on October 03, 1999 at 21:55:31
Using Mozilla/4.0 (compatible; MSIE 4.01; Windows 95; 3Com U.S. Robotics Connections):

In Reply to: left and right channels in stereo posted by Alan L. Maier [SysOp] October 03, 1999 at 14:58:00

Thanks for the info.
When I opened up the speaker grills and listened carefully, the speaker with lots of base had most of its output coming from the woofer and the speaker with lots of treble had most of its output coming from the mid-range.

Within the speaker with lots of base, the material (looks like thin cardboard and foam) of the mid-range was all torn up. I guess that's why this speaker sounded overly heavy.

Is there anyway to change the output levels of the individual items (the tweeter, mid-range, woofer) within a speaker so I can balance it to match the output of the other? Or does it sound like its beyond help.
Thanks!
Andy

: Andy,

: It sounds like you have a problem with the speakers themselves. I asked for you to try your headphones, as the headphone jack is wired into the amplifier output - the same amplifier which is driving your speakers... just with the level dropped way down.

: I suspect old age may have taken their toll on your speakers. Woofers suffer from a deterioration known as "foam rot", which causes a loss of bass (and usually a rattling sound from the speaker). Foam rot is a condition where the compliant ring around the woofer cone has rotted due to age - which is visible if you remove the grill and look at the speaker drivers. This would explain the bass loss in one channel. The treble loss could be corrosion at a level control on the speaker, which was common years ago. To fix that, try to adjust the tweeter level and listen for the treble to return. Sadly foam rot is often the end of the life of most speakers unless they are quite special, you know someone who can replace/prepair the drivers or both. What to do if foam rot is a problem is something we can go over if that is indeed the problem.

: Good luck!

: Alan

: : Hey Thanks for the reply...

: : I tried a few things that you suggested. My system is indeed old. My system does have a "Loudness" function that I had on. I turned it off and set the "Treble" and "Bass" dials to flat and unplugged the VCR input.

: : When I listened to the tuner using the speakers, I'm still getting a lot of treble in the left speaker and a lot of bass in the right.
: : However, when I listen using my headphones the sound is more balanced. I can't really tell whether one has more treble or bass than the other.

: : So I guess the problem lies with the speakers? Or is it a problem with the receivers output?

Follow Ups:

• left and right channels in stereo - Alan L. Maier [SysOp] 22:43:16 10/03/99 (2)
  • left and right channels in stereo - Andy 23:18:50 10/03/99 (1)
    • left and right channels in stereo - Alan L. Maier [SysOp] 00:13:44 10/09/99 (0)

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