Android phones and USB DACs
May 18, 2014 at 12:17 PM Post #4,742 of 9,526
  Been using some pretty normal USB-OTG Cable myself for the last half year.
So far it didn't have anything to regret, it was about 10ish Dollars although i could have probably get the same cable for half the price on the interwebs :)
 
 

 
 
I have yet to see a "high-quality" cable whatever that means :)

I am reminded of Justice Potter's comment about porn....'I know it when I see it'....
 
May 18, 2014 at 12:45 PM Post #4,743 of 9,526
$80 for an OTG cable still seems a bit gouge-y and exploitative IMO. If it brings something to the table SQ-wise, it might be worth it, and I could certainly be wrong... But it just feels snake-oily to me. JMO, natch. 
 
May 18, 2014 at 1:17 PM Post #4,746 of 9,526
   
Iam probably a bit too jolly right now, but i don't get that one :D

I shall not today attempt further to define the kinds of material I understand to be embraced within that shorthand description ["hard-core pornography"]; and perhaps I could never succeed in intelligibly doing so. But I know it when I see it, and the motion picture involved in this case is not that. [Emphasis added.]
—Justice Potter Stewart, concurring opinion in Jacobellis v. Ohio 378 U.S. 184 (1964), regarding possible obscenity in The Lovers.
 
Like the Good Justice, I know a quality cable when I see it.
 
May 18, 2014 at 7:02 PM Post #4,747 of 9,526
Wanted to ask if the AMB Gamma 1 Lite works with the U.S Samsung Galaxy S3 via OTG? I had read that the Gamma 1 and 2 version do but not a hundred percent about the lite version. If anyone has used it or has read that it does please get back to me.
 
May 19, 2014 at 12:04 PM Post #4,749 of 9,526
  For the most part, I've found my iPad to have clearly better USB audio implementation than any phone (Samsung, LG) I've had.  It always works, every time, even with my Bel Canto C5i speaker setup.  And jailbreaking has allowed me to bypass iTunes completely by putting all of my audio files in a folder I created.  But let's be clear, it's still no where near as versatile as my Android phone.  The interface will never be as customized to my liking.  The number of decent audio players is much higher on Android.  Even jailbroken, I need apps that can point to source folders (thankfully iOS Neutron player works.)  And no jailbreak hack can add an SD slot.

 
I think your statement, while possibly perfectly valid in your case, cannot be generalized to all iOs devices, as we all know one of the biggest curses of iOs USB implementation (audio or not) is extremely low current (mA) allowance. In fact, I am almost sure (although I am lacking any technical evidence) that the DC current allowance of iOs devices is swinging between 20mA with worst SW updates and 100mA with "better" SW updates. 
 
And this, software-imposed, limitation makes finding a good matching USB DAC a real challenge.
 
In fact, an "officially" iOs-compatible USB DAC is just a regular USB DAC, with USB receiver "hacked" to request zero mA (or below 100mA), and some added price tag for Apple certification.
 
Don't get me wrong: I am not one of those crazy "apple haters" out there, I am a happy owner of the total of 5 iOs devices of various types and generations. But objectivity comes first: IMO, Apple's implementation of USB connectivity is just plain bad.
 
May 20, 2014 at 4:06 AM Post #4,750 of 9,526
Haven't read the thread and it's not a phone so please remove if too far off topic - but it's Android and it's portable and IIRC I got to this thread via a link to a comment about another Android tablet, so it might be useful to someone.
 
I had a Samsung Galaxy Tab Pro 8.4 which had issues with analog output to external amplifiers (a loud pop when starting playback), so it's been returned for support to check out. Before I sent it back I managed to get a cheap OTG cable and try it out with my headphone amps:
 
1. The iBasso D2 wouldn't establish a USB link no matter what I did.
 
2. The CEntrance DACport would link, but wouldn't play back much of the time, and was unusable the rest, even after the tablet was rebooted with the DACport connected. IIRC when it did produce audio there were either severe pitch changes and what sounded like missing samples or crackling reminiscent of vinyl.
 
3. The Pico would link, but initially wouldn't play back very well (I think it was doing the "crackling like vinyl" thing, and I think there were times it wouldn't produce any sound at all). With the crackling I suspect the tablet's resampling algorithm is substandard or isn't getting high enough priority CPU slices to generate timely samples. However rebooting the tablet with the Pico connected worked as far as I could tell in 5-10 minutes of playback with headphones and about half an hour through my hi-fi speakers.
 
May 20, 2014 at 4:47 AM Post #4,751 of 9,526
  $80 for an OTG cable still seems a bit gouge-y and exploitative IMO. If it brings something to the table SQ-wise, it might be worth it, and I could certainly be wrong... But it just feels snake-oily to me. JMO, natch. 


LOL...$80 for a digital cable. SQ will be the same as any other cable. The only difference would be reliablity.
 
May 20, 2014 at 9:20 AM Post #4,753 of 9,526
Sooner or later somebody is going to come out with a series of inexpensive, well-made cables that fill all of these product gaps (looking at you, Monoprice!), and when they do I'll be all over it. MP already has some really cheap OTG adapters, but it would be nice to have the complete cables available too. 
 
May 20, 2014 at 12:15 PM Post #4,754 of 9,526
  Sooner or later somebody is going to come out with a series of inexpensive, well-made cables that fill all of these product gaps (looking at you, Monoprice!), and when they do I'll be all over it. MP already has some really cheap OTG adapters, but it would be nice to have the complete cables available too. 

 
I sure hope so. Honestly, if AQ would come out with a $30 Forest-series OTG cable I'd get one, as long as it comes in the termination/s I need on the DAC end. That series will still be half the price of the cheapest alternatives barring a really cheap DIY job.
 

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