Poor quality bass integration means muddy, detached bass that sounds unnatural.

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These components are combined with dual 5.25-inch, built-in subwoofers to ensure premier bass output and sound quality.

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Tiny speakers usually lack one quality: rich bass sounds.

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As far as sound quality goes, the bass push on these is just as smooth and open-sounding as the X10, but the high-end is noticeably harsher -- we definitely felt the need to turn on "treble reducer" in our iPhone's EQ settings.

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An incredibly rich, vivid and crisp visual experience is further enhanced with integrated JBL optimised speakers and a Max Bass Boost subwoofer, for ultimate sound quality when watching movies or listening to music.

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Quality drivers deliver natural sound with deep bass.

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Granted, then, this was hardly the best scenario to evaluate audio quality, but we did sense that the treble was a bit trapped compared to the bass, which came through loud and clear.

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In terms of sound quality, the units sound almost exactly the same as S4i: warm with a pleasant amount of chunky bass that doesn't overwhelm the highs and mids.

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