Extremely poor sound quality

Sound quality on two systems has recently become terrible. It sounds like underwater or too much vibrato/reverb. Could this be related to the latest QuickTime update?
G5, G4   Mac OS X (10.4.6)   iTunes 6.0.4

Always a good start in this situation is to turn off the EQ using the appropriate tool in the lower right corner of the iTunes player window, and going to iTunes > Preferences > Playback and disabling Sound Enhancer.

Similar Messages

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    Memory  8 GB 800 MHz DDR2 FB-DIMM
    Graphics  ATI Radeon HD 2600 XT 256 MB
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    Thank you for the reply!
    I was experiencing the same results no matter what export settings I used. Plus the poor sound quality was present in the timeline itself, without even exporting the project.
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    As asked in the title, is it possible to get a refund if i bought an album with extremely bad sound quality?
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