Jorge, Dynamic EQ is a feature that's been very well-received by most(including me). Don't confuse it with Dynamic Volume which compresses volume differences(e.g., for TV commercials). The Dynamic EQ compensates for the lower sensitivity of our ears to bass and treble at lower volumes and also increases the relative surround level at lower volumes. This improves the overall effect when listening at other than very high levels.

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Enjoy the music, not the equipment.