HTC Sensation Vs. Galaxy S II Vs. Optimus 2X: Head To Head: Loudspeaker Test, Audio Quality Comparison

By 01:09 Wed, 11 Aug 2021 Comments

Loudspeaker test

They might have powerful processors but at the discontinue of the day they're still phones - and what fine will they be if you can't hear them ringing. Which is why we're looking at the loudspeaker performance of the HTC Sensation, Samsung Galaxy S II and the LG Optimus 2X.

The test is our usual loudness recording test and it covers more than just ringtone strength - the test also gauges the phone's performance when playing music over the loudspeaker or the strength of a human voice coming to of it (e.g. using hands-free during a call).

Here's the table with the Sensation, Galaxy S II and Optimus 2X along with several other phones to give this test context.

Speakerphone testVoice, dBPink noise/ Music, dBRinging phone, dBOverall score

Samsung I9000 Galaxy S66.6 65.966.6Below Average

LG Optimus 2X65.7 60.067.7Below Average

Google Nexus S68.166.3 69.3Average

HTC Sensation66.566.678.3Good

Sony Ericsson XPERIA Arc66.166.378.0Good

HTC Incredible S66.566.176.7Good

Samsung I9100 Galaxy S II70.066.675.7Good

Nokia N875.866.282.7Very Good

HTC Gratia73.273.683.5Excellent

You can read about how we do the loudspeaker test over here.

The HTC Sensation and the Samsung Galaxy S II both scored Good marks with virtually identical results (overall incompatibility is about a decibel). The LG Optimus 2X however fell behind and scored only a Below Average mark, with nearly 20dB less overall. Subjectively, in day-to-day utilize the Optimus 2X is rather quiet too.

Missed calls, however, should be rare with the Sensation or the Galaxy S II (unless you work with a jackhammer) but you should haged the Optimus 2X close in noise environments or you might not hear it ringing.

Audio output quality

Here's how the contenders compare in terms of audio quality. With no resistance applied to their line-outs the smartphones achieved remarkable scores and there's really very small to separate them. Still the Sensation snatches the crown here from correct under the Galaxy S II nose for being a tad louder than it. The Optimus 2X isn't far behind by any means those.

When headphones comes into play things see a bit different and each of the three competitors had some kind of output degradation. The Optimus 2X stereo crosstalk increased dramatically, though it's worth nothing that it's the one which retains its perfect frequency response. The Galaxy S II got some extra stereo crosstalk as well (though not quite as much) and it got some frequency response deviation. The Sensation takes a small hit here and there too, but none is quite so significant so it remains a slit above the rest.

TestFrequency responseNoise levelDynamic rangeTHDIMD + NoiseStereo crosstalk

HTC Sensation+0.05, -0.34-


Samsung I9100 Galaxy S II+0.04, -0.09-91.491.90.0042


LG Optimus 2X+0.01, -0.03-


HTC Sensation (headphones attached)+0.71, -0.15-


Samsung I9100 Galaxy S II (headphones attached)+1.05, -0.22-


LG Optimus 2X (headphones attached)+0.14,-0.04-89.889.90.0098


HTC Sensation frequency response

Samsung I9100 Galaxy S II frequency response

LG Optimus 2X frequency response

You can learn more about the whole testing process here.



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