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iPhone 5C and 5S: audio output - Page 24

post #346 of 350
I loved that iPhone 4s and at first more so than the 5s.

These days i have no doubt that the 5s is better. More clear, controlled and very fast.

Actually for powering iems a non European iPhone 5s is one of the best headphone out that i have ever tried. Wonderful.


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post #347 of 350
Quote:
Originally Posted by visanj View Post

But I heard from many people that iPhone 4s is of warmer signature... Don't know about others

I think that iPhone 4s is a bit slower hence sounds a pinch fatter. On the other hand the 5s sounds a bit more clear and refined. It's exquisite actually.

These days whenever i have the chance i always choose the 5s over my iPad 3 (which to me sounds almost identical to the 4s).

Anyway it's all nitpicking. Every recent idevice has a fantastic headphone out (unfortunately in Europe handhelds are a bit worse output power wise due to the cap).


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post #348 of 350


Hi.  I have the new iPhone 5s and have compared it's audio quality side by side with the 4s using some technical measurement procedures and of course my ears, a few different pairs of headphones and my favorite music.

 

I have noted below the output voltage of both iPhones at their highest volume setting while playing a several different 0dB tones.

 

iPhone 4s:

 

1.14V (line level load both w/ channels driven) (no clipping)

  .87V (16ohm headphone load w/ both channels driven) (clipping occurred)

 

iPhone 5s:

 

1.02v (line level load w/ both channels driven) (no clipping)

  .92   (16ohm headphone load w/ both channels driven) (no clipping)

 

As you can see, technically the 4s is louder but only with a line level load (connected to external amplifier).  When the headphone load was connected, the device introduced distortion and the output voltage dropped.

 

With the 5s, the voltage dropped during connection of the headphone load as expected, but much less than the 4s, additionally there was no audible distortion.

 

Conclusion

 

The 5s does not quite go as "loud" but can drive a low impedance load with less enough voltage drop than the 4s to actually go louder with headphones attached.  This also indicates better dynamic range.

 

Also worth noting the headphone channel separation on the 5s was a little bit better as well.

 

As per my listening tests, I found both phones to have fantastic sound but the 5s sounded a tad cleaner, with better imaging, timing and overall accuracy - especially at higher volume levels with more difficult headphones loads.


Edited by mdelaney1986 - 7/7/14 at 8:55pm
post #349 of 350
Quote:
Originally Posted by mdelaney1986 View Post


Hi.  I have the new iPhone 5s and have compared it's audio quality side by side with the 4s using some technical measurement procedures and of course my ears, a few different pairs of headphones and my favorite music.

 

I have noted below the output voltage of both iPhones at their highest volume setting while playing a several different 0dB tones.

 

iPhone 4s:

 

1.14V (line level load both w/ channels driven) (no clipping)

  .87V (16ohm headphone load w/ both channels driven) (clipping occurred)

 

iPhone 5s:

 

1.02v (line level load w/ both channels driven) (no clipping)

  .92   (16ohm headphone load w/ both channels driven) (no clipping)

 

As you can see, technically the 4s is louder but only with a line level load (connected to external amplifier).  When the headphone load was connected, the device introduced distortion and the output voltage dropped.

 

With the 5s, the voltage dropped during connection of the headphone load as expected, but much less than the 4s, additionally there was no audible distortion.

 

Conclusion

 

The 5s does not quite go as "loud" but can drive a low impedance load with less enough voltage drop than the 4s to actually go louder with headphones attached.  This also indicates better dynamic range.

 

Also worth noting the headphone channel separation on the 5s was a little bit better as well.

 

As per my listening tests, I found both phones to have fantastic sound but the 5s sounded a tad cleaner, with better imaging, timing and overall accuracy - especially at higher volume levels with more difficult headphones loads.


Awesome information.

What your ears hear matches exactly my impressions. Loved to pieces my iPhone 4s hp out and now enjoying even a bit more my iPhone 5s.

In my book they drive low impedances better than many 'audiophile' bricks.


Password must contain at least one capital letter, the meaning of life, 14 of your favorite baby names, the Hamlet plot summary and a hug.
Edited by elfary - 7/8/14 at 1:12am
post #350 of 350
Quote:
Originally Posted by mdelaney1986 View Post
 


Hi.  I have the new iPhone 5s and have compared it's audio quality side by side with the 4s using some technical measurement procedures and of course my ears, a few different pairs of headphones and my favorite music.

 

I have noted below the output voltage of both iPhones at their highest volume setting while playing a several different 0dB tones.

 

iPhone 4s:

 

1.14V (line level load both w/ channels driven) (no clipping)

  .87V (16ohm headphone load w/ both channels driven) (clipping occurred)

 

iPhone 5s:

 

1.02v (line level load w/ both channels driven) (no clipping)

  .92   (16ohm headphone load w/ both channels driven) (no clipping)

 

As you can see, technically the 4s is louder but only with a line level load (connected to external amplifier).  When the headphone load was connected, the device introduced distortion and the output voltage dropped.

 

With the 5s, the voltage dropped during connection of the headphone load as expected, but much less than the 4s, additionally there was no audible distortion.

 

Conclusion

 

The 5s does not quite go as "loud" but can drive a low impedance load with less enough voltage drop than the 4s to actually go louder with headphones attached.  This also indicates better dynamic range.

 

Also worth noting the headphone channel separation on the 5s was a little bit better as well.

 

As per my listening tests, I found both phones to have fantastic sound but the 5s sounded a tad cleaner, with better imaging, timing and overall accuracy - especially at higher volume levels with more difficult headphones loads.

 

Thats a valuable input. Also can you please provide your subjective opinion regarding sound signature?

 

Many are descripting 5s as analytical, cold and 4s as warm sounding. Also 5s's highs seems to be brighter than 4s

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