[Baroninkjet]

 
Let's move further iPhone 6 sound quality discussion to the new dedicated tread.
http://www.head-fi.org/t/735430/iphone-6-plus-ios-8-sound-quality-discussion

 
Why would we want to do that? There is way more content on sound quality here.

 

[elfary]

Renaming this thread to iPhone 6/6 Plus sound quality would be the best course of action imho.

 

[Baroninkjet]

That is fine with me, but I don't see how I can do it as thread starter. Perhaps a mod must do it?? 

 

[headwhacker]

I doubt there is any hardware difference between the 6 and 6+ other than the size of the screen, the camera assembly and the battery.
 
But I won't be surprise if anyone would later claim to hear a difference comparing the sound between 6 and 6+

 

[headwhacker]

  That is fine with me, but I don't see how I can do it as thread starter. Perhaps a mod must do it?? 

 
Do you mean edit the title? go to the first page. You should see " EDIT THREAD"

 

[Baroninkjet]

Ahh, thanks! I was looking in editing my first post. 

 If anyone has any suggestions to improve the title, let me know.

 

[Venasa]

iFixit listed the only audio related part as the Cirrus Logic 338S1201 Audo Codec, does anyone know if this is the DAC?

 

[Jakkal]

iFixit listed the only audio related part as the Cirrus Logic 338S1201 Audo Codec, does anyone know if this is the DAC?

Yes this is the DAC chip, same like the 5S.

 

[obsidyen]

  I doubt there is any hardware difference between the 6 and 6+ other than the size of the screen, the camera assembly and the battery.
 
But I won't be surprise if anyone would later claim to hear a difference comparing the sound between 6 and 6+

 
Yes, in the 6+ the soundstage is more open and the sound is more transparent. 6 on the other hand is warmer and the bass hits more strongly.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

[swab]

http://mashable.com/2014/09/26/iphone-6-hd-audio/
 
Mashable has confirmed the iPhone 6 doesn't play high-res sound in a series of tests on the device's headphone jack.

 

[Headiest]

   
Yes, in the 6+ the soundstage is more open and the sound is more transparent. 6 on the other hand is warmer and the bass hits more strongly.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

I totally agree, although the bass is too strong in my opinion.  It interferes with other frequency ranges slightly.

 

[Philliesfan]

[I have used my iphone 6 all week and really like the audio. This includes using my xba-4 and Triple-fis, both phones that require.a low output impedance. In fact, I never upgraded to the iPhone 5s last year because the xba-4 sounded hollowed out with much weaker bass than on my 4s. No problems with the 6. It also drives my Koss Tony Bennett special edition well, another headphone that is picky about sources. It's a perfect match to my Turbulent Labs Magnum build. And it even has enough guts to drive my modded Fostex T50RPs. That's something my 4s never did well. No, it isn't as good as the little dot 1+, but that amp has a lot more power and a tube front end. So it gets lots louder. But on a song that is well recorded at a good volume, I don't notice any flab in the bass and the mids are ortho beautiful. I haven't had the urge to even try my Fiio E11 with it. I don't have a lightning adaptor so I would have to go from the headphone out. One less item to deal with, I figure.

I eventually did a side by side review using the 4s and the 6 to make sure this wasn't expectation bias at work. To eliminate any changes In the IOS music player, I instead used the CanOpener app on both devices, with volume matched by ear. In all cases, the 6 sounded better. I would describe it as a little warmer and a lot less congested. The bass has just as much impact but the mid seem more spread out, not just in soundstage but in detail. Treble is also as good or better.

I didn't audition the 6 plus because I didn't like the way it didn't fit in my pockets. My advice is to take your headphones to an apple store or other retailer and see what your ears say. Mine say it's a keeper. I can live with this for the next two years. Who knows what will be available then. /B]

 

[elfary]

Gsmsrena posted their customary measurements. Seems that they measured en European Union capped iPhone because they compare its output power with that of the Galaxy s5 (which i have heard and sounds a lot softer than my american iPhone 5s). Furthermore at phonearena they measured 1 volt of output off the 6 (same as iPads and iPhone 5s). Hence as usual don't take too seriously gsmarena data. What i gather from them is that output impedance must be between 2.2 and 2.7 ohms or so (they test with akg cans that have an impedance spike at 50hz).

 

[Baroninkjet]

Here is the GSMarena link, though I too take them with a grain of salt after seeing all their mis-steps and blunders over the years.
 
http://www.gsmarena.com/apple_iphone_6-review-1141p8.php
 
On the home front, my US 6 seems to be mellowing out over time. It is not nearly as harsh as it was on day one. Not sure if I believed burn-in for electronics before or not, but it sure seems to be happening. The real test will be when I get the RE400s back from repair.

 

[elfary]

Since i have the chance to get in 72 hours an iPhone 6 128gb imported from the U.S. I would need impressions from people that have had previously an iPhone 5s.