Hum, i'm a computer audio guy. I'm not portable. Lol. I have a sound blaster audigy gamer. With 6.1 surrod sound, 600 watts, with 150 watt sub. I dont have an ipod or any rela good mp3. I have a pair of koss ur40 headphones. they have good bass but the vocals suck on it. They only cost me 5 $ I love em, i got em from my aunt. But i do have a 256 mb mp3 player, nothing special. I also have a pocket pc that i use as a mp3/pc/and portable movie player. It's audio isnt the greatest but it is multimpurposed