@ShacharHarshuv,
Are you talking about a channel dropping out or does this happen with both channels are making sounds?
Quote: I hate hearing it from a specific point,
Are you talking about the loss/collapse of the stereo image - meaning it sounds as though the music is coming from the center only (as opposed from L or R only)?
Keep both speakers equidistant apart and the same distance from your ears.
What has changed in your set-up since you started to notice this problem?
What media is the source of the music (When you have the problem) to which your listening?
Is it all music or just from certain sources?
Listen to a CD on home stereo and then use your computer. Do you still notice the problem?
Have you changed the wiring...reversed L and R speaker wires?
Are you experiencing this phenomenon also with your home stereo?
How is your hearing (re directionality of room sounds)?
What are you smoking?
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My guess it that either there's a possible phase change or polarity change of your speakers. when you reverse the polarity (L and R) wires, see what happens to the effect?
If there's differences in the source material (proper sounding using a CD vs other media source) there's something in the source material of a few of what you're playing and you just started to notice it for the first time.