I understand that, it is stupid to get a good cans and amp to listen mp3. However, I am same as most of the young adult, always site beside computer to work, study, play game....etc. Therefore, I already choose a great soundcard, audigy2 (maybe some of Hi-Fier disagree of it), and listen to at least 192kb mp3. I know it is still not good enough. Therefore I will change my source in future after I get a job. But now, I want to upgrade amp first.
I have two choices, META42 and Gilmore Lite, they both cost almost the same. Based on antness information,
"The differences between the Lite version and the normal version is mainly the enclosure, jacks, and power supply. The Lite version uses a wall-wart as a power supply, and has one headphone jack and one RCA input. The normal version has a large, extremely well regulated power supply, and two headphone jacks, two RCA inputs, and an RCA pre-out."
Since Gilmore Lite are using Wall-Wart, then the sound will make a big different to Gilmore normal which power by regulated power supply. (based on my knowledge, correct me if I am wrong)
But then, META42 Max out and Gilmore Lite, they both use wall-wart, then I confuse which design is better.