Originally Posted by kingalekay
Hello, I have never researched amps or dac's until now and I want to know all of the slim portable headphone amp + dac manufacturers that make ones that would match the shape of the ipod touch. I don't want one that has functions to change the sound quality of the music listened to with it (example being a bass boost or reducer function) because I don't like tampering with the sound of my songs and would like to hear them the way the artist intended. Also, I want a digital volume control instead of an analog one. Also, I would want to know the best type of connection between an ipod and amp/dac. Is it LOD or is there something better?
Your question is easy. It is none. At present there is no "slim portable headphone amp+dac that match the shape of the ipod touch" Because first you'll have to get the digital signal out of the ipod/touch for the dac to process and to do that in the portable realm you have two choices.
In terms of portable headphone amp+Dac that you can use with an Ipod/touch/iphone etc, you have only two choices: The CLAS Solo and the Foster Hp-p1. There are other devices that can get the digital signal out of the ipod/touch but they are not portable, like the Istreamer, Wadia etc
As for slim amps that use digital volume control, there are the RSA Shadow, Pico Slim, Ibasso T5 etc.
If you don't want to tamper with the signal of your songs just leave them where they are at, on the hard drive or your memory card. As soon as you start processing the digital signals, you are tampering with your signal to a certain degree. All DACs and amps will change the sound from the way the artist intended to certain extend. Your only hope is to look for the most transparent amp and dac so your music is altered minimally. Bass boost, EQ, and reducers are the extreme type of tampering, but all process signals is a form of tampering.
Edited by Jalo - 2/1/12 at 5:12pm