I use Sound Juicer : https://wiki.gnome.org/Apps/SoundJuicer I don't know if it's the best since it "just works" I don't try anything else.

  You can use it with some tools. I use youtube-dl : http://yt-dl.org With Linux : $ youtube-dl -F "https://youtu.be/MZgkClKE6hQ" ... [info] Available formats for MZgkClKE6hQ: format code  extension  resolution note 171          webm       audio only DASH audio  114k , audio@128k...

What is a flagship ? https://docs.google.com/presentation/d/1wi8M-HSeK0JF33P-5ypydQjQ4OshRQhvWM0IX2h0NQ8/   See page 4, "Flagship characteristics". If you can do a "flagship" for 50 $, go for it, you will sell millions of them.

  Obviously, the problem is bigger with a badly grounded sound card. Any way, with a well grounded sound card, you are always right. I'm not arguing this point. You think one of the solution is to use a computer only for music (less load system). That is to say, in my case, I have to buy a new...

  I think you are talking about badly, or far from perfectly, grounded sound cards. For me, if a sound card (or something else) has an issue, then try to fix the sound card in the first place. I don't want to buy another computer and spend time to configure it and so on because one element is...

First, sorry for my English.   I read many things interesting here, but I don't get this "bit perfect" obsession. I mean what is the real benefit ? Apparently it's quite annoying.   My sound configuration : - Amp : Sony UDA-1 (USB) - Headphone : AKG K612 pro   Not the best configuration...

My suggestion, I use a Sony UDA-1 with Linux. My little review : http://www.head-fi.org/t/680611/new-sony-high-end-dsd-gear-including-a-usb-dac/105#post_10463179

Hi all ! I'm new here. I'm French so excuse my poor English. I would like to thanks this forum for the help it provide to choice some audio equipment. It is the first time I buy decent audio equipment and reading/searching through this forum really helps me. Thanks. A couple of weeks I buy...