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Samsung Galaxy S 4 - Page 15

post #211 of 233
Quote:
Originally Posted by umvue View Post
 

 

I am thinking about replacing my S1 with S4 but I do need a phone that is loud enough to drive my HD650

 

Does that mean S4 isn't powerful enough to drive HD650? If not, are there are other phones as loud as or louder than the old S1??

 

Thanks

 

Since that post, I've learned that my I9505 S4 has a higher output impedance, so I wouldn't recommend it over the S1. 

post #212 of 233
Quote:
Originally Posted by White Lotus View Post
 

 

Since that post, I've learned that my I9505 S4 has a higher output impedance, so I wouldn't recommend it over the S1. 

I heard that the i9500 is louder than i9505. Would that help? Does anyone know?

post #213 of 233
Anyone experience distortion after finishing a phone call (using an USB DAC)? When the music resumes, it's distorted. I have to unplug the USB DAC, wait a few seconds, then plug it back in and it sounds normal. Happens on both the Fiio E17 and HiFimeDIY Sabre Android DAC. Tried different ROMS and kernels with the same result.
post #214 of 233
Quote:
Originally Posted by umvue View Post
 

I heard that the i9500 is louder than i9505. Would that help? Does anyone know?


i9500 is slightly louder

 

Test Frequency response Noise level Dynamic range THD IMD + Noise Stereo crosstalk
Samsung I9500 Galaxy S4 +0.03, -0.04 -94.5 93.4 0.0036 0.016 -93.0
Samsung I9500 Galaxy S4 (headphones attached) +0.03, -0.02 -93.0 92.9 0.0084 0.062 -77.5
Samsung I9505 Galaxy S4 +0.03, -0.08 -95.9 93.2 0.0030 0.0092 -96.4
Samsung I9505 Galaxy S4 (headphones attached) +0.03, -0.08 -96.0 93.3 0.0031 0.089 -77.5
post #215 of 233
Quote:
Originally Posted by umvue View Post
 

I heard that the i9500 is louder than i9505. Would that help? Does anyone know?

From gsmarena's s4 comparison.

 

Both Samsung Galaxy S4 versions did greatly in our audio quality test. They both had excellently clean output in both testing scenarios and despite the fact that they use different audio chips, their output is quite hard to tell apart.

The Qualcomm-powered Samsung I9505 Galaxy S4 had the tinniest of edges in the headphones-plugged-in testing scenario, exhibiting slightly cleaner audio output, but we doubt anyone will be able to hear the difference. The Exynos-packing I9500 Galaxy S4 makes up for it with an advantage that's a bit easier to hear on your own - slightly higher maximum volume levels.

No matter which of the versions of the Samsung flagship you choose, you will be more than happy with its output and certainly we wouldn't advise you to make your selection based on the audio output - it's just that it's too close to call here.

post #216 of 233

How about S3/Note 2 + uNEAK kernel? Someone claims that it is powerful enough to drive HD650:basshead:

post #217 of 233
Quote:
Originally Posted by umvue View Post
 

How about S3/Note 2 + uNEAK kernel? Someone claims that it is powerful enough to drive HD650:basshead:


Those are some bold claims, i seem to remember having a hard time driving my HD598's. The HD650 would be a stretch imo but i guess its possible.

 

Headphone Amplification Pump up your headphones volume by raising this value (from 45 to 63). Be careful of your ears, and don't exceed too much with the volume. High volume levels may cause distorsions if your headphones aren't capable of such power.

 

I wonder how much impact this would have on battery life...


Edited by chailee80 - 3/30/14 at 9:55pm
post #218 of 233

My S4 doesn't seem to have that much output power.  I can't imagine S3 driving HD650.  Actually, 650 is not hard to drive, and it probably could, but not to a loud level, and I'm thinking amping would not be adequate to drive it to potential that a more capable amp can push.  External amp is highly recommended, but how takes 650 as a to go phone as it's an open headphone that needs a quiet area for listening.

post #219 of 233
Quote:
Originally Posted by SilverEars View Post
 

My S4 doesn't seem to have that much output power.  I can't imagine S3 driving HD650.  Actually, 650 is not hard to drive, and it probably could, but not to a loud level, and I'm thinking amping would not be adequate to drive it to potential that a more capable amp can push.  External amp is highly recommended, but how takes 650 as a to go phone as it's an open headphone that needs a quiet area for listening.

I do understand the impracticality of using a smartphone to drive HD650. I am just using it as reference to see how loud different smartphones can be.

 

I would like a new phone that is as loud as Galaxy S. If not, then as loud as possible. It is good that now I learned that i9500 is louder than i9505. S3+uNEAK kernel might be even louder still. So is S3+uNEAK the loudest now among the top audio phones?

post #220 of 233

maybe you can test them out with software and mic input on the computer.

post #221 of 233

I wonder if the new 128gb Micro SD cards will work in the Galaxy S4.

 

Can anyone shed some light on this?

post #222 of 233
Quote:
Originally Posted by White Lotus View Post

I wonder if the new 128gb Micro SD cards will work in the Galaxy S4.



 



Can anyone shed some light on this?


 



Yes it does.
post #223 of 233
Quote:
Originally Posted by av911 View Post

Anyone experience distortion after finishing a phone call (using an USB DAC)? When the music resumes, it's distorted. I have to unplug the USB DAC, wait a few seconds, then plug it back in and it sounds normal. Happens on both the Fiio E17 and HiFimeDIY Sabre Android DAC. Tried different ROMS and kernels with the same result.

 



Nobody?

Used bluetooth for a phone call, same thing.
post #224 of 233
Quote:
Originally Posted by SilverEars View Post
 

Hi guys is it true that the output impedance is 1.2ohms?  According to this website it is.  Supposedly headphones atleast 32ohms sould have excellent sound coming out of the S4.

 

http://www.jensign.com/S4Distortion/

 

 

"The final column above for R=3kohm represents the performance achievable with high impedance headphones with nominal impedance > 50ohm. Adding a high quality external headphone amplifier with an input impedance of 1kohm or greater to a smartphone will improve the audio quality, particularly if the headphones are in the lower impedance range."

 

This chart...well this chart shows that an iPhone (from 3Gs on) literally trumps the Galaxy constellation when driving low impedance earphones. And it trumps it badly unless loads are from 32 ohms on.

 

For 16 ohms stuff it's not even close.

 

Check iPhone RMAAs from goldenears driving a 16 ohm load.

post #225 of 233
Quote:
Originally Posted by elfary View Post
 

 

This chart...well this chart shows that an iPhone (from 3Gs on) literally trumps the Galaxy constellation when driving low impedance earphones. And it trumps it badly unless loads are from 32 ohms on.

 

For 16 ohms stuff it's not even close.

 

Check iPhone RMAAs from goldenears driving a 16 ohm load.

Yeah, but for one goldenears and this guy has different equipment, so it's better if both devices are measure on the same equipment.  Second, iphone 5 has much higher output impedance than the S4 and that makes a difference for multi BA headphones.  Third, these values are not even close to audible range, and both are flat.  I'd be more concerned with output impedance if you have low impedance multi BA iems.  Hopefully, you don't think iphones are audibly better based on SS device measurements.  ;) 

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