Originally Posted by kiwin
I am looking for a portable amp/dac that plays nice with a samsung galaxy sIII and also for use with a laptop. I would like the folowing:
- 24/96 usb input
- ability to use IEM's at 20 ohms, therefore output impedance of 3 ohms or less, preferably 2 or less
- can run off internal battery
- compatible with Samsung Galaxy s3
- can be used as a dac only to provide input into an amp
- neutral/transparent sound
I will be using said device while I ilve on a sailboat and need it to power my personal music through iem's from my pocket while on watch at sea and also to provide music from my laptop through an amplifier and speakers for general use while not at sea.
I have used the search function extensively and the only device I can find that does the job is the apex hifi audio glacier, but at $495 I was hoping for something cheaper.
There are a few devices which will do the job at 16/48 or 16/44.1 but many of my files are hi res.
Well, there are two routes you can go...
You can either 1) amp up the S3 using the headphone out, which means you will be double amping (not sure what this will do to sound quality),
or 2) I believe Samsung have made it so you can use the micro USB slot at the bottom to act as a direct line out.
You do need to get a Micro USB GTO A cable which can act as a host (something like this: http://www.amazon.co.uk/OTG-Cable-Adapter-Mini-A-plug/dp/B000EORX7U)
After you get that, you can use an external amp like the Fiio E7 which can connect directly to the USB and you will get a very clean line out source, that will avoid the S3's DAC completely.
The Fiio 7 is meant to have a lovely output, and will certainly do the job, and is one of the ones capable of running on the S3.
Others, people haven't had much success with, but there is a list that work.
So, it depends. If you want to run digital out using the S3, you have limitations and have to carry around that cable with you too, or just double amp and use whichever amp you want.
The Fiio E7 is a really good cheap amp though, and it also has the plus side of acting as a DAC too, so can be used when a device doesn't have an inbuilt sound card, or a very good one (i.e laptops, and the like)
I hope this reply helps :)
Edited by musical-kage - 11/22/12 at 5:18pm