Originally posted by: xboxist
noob question:
When you "amp" a pair of headphones, what effect does that exactly produce? I assume you're not talking about volume, because mine get pretty loud just being plugged directly into my soundcard. Does it just make it sound beefier or something?
You're giving the headphones sufficient power so that they can perform optimally at all volume levels. The highs can sound crisper and the bass can become more responsive, but that is all dependent on the source, EQ settings, and of course the headphones used.
One of the things I noticed with my HD590s being powered by a cMoy amp is that there seemed to be better dynamic range. I can't tell you if this was something I just didn't notice before, but a good way to put it is that the sound did become beefy if there was a dramatic change in volume. (quiet intro progressing into the song: Evanescence - Bring Me to Life)
As stated above, the source makes a HUGE difference. Your average soundcard from Creative may not be adequate to give you the full experience of quality cans on a nice amp. Many advocates look at $700-$1000+ external DACs that hook up to the computer via USB. This eliminates any kind of internal interference that may be introduced when the soundcard is on the inside of the computer.
Despite my love for 'true' sound and audio accuracy, I can't honestly justify the external DAC stuff. I'm moving up to a Mini3 headphone amp soon and am swapping my Audigy 2 ZS with an Auzentech X-Fi soundcard. NewEgg has it for about $180 if I remember right and it gives you the quality of the X-Fi chips, EAX stuff for games, and no restrictions on digital inputs and outputs, which Creative implements to limit some setups to requiring the use of their own brand of speakers. I bought my HD590 new for $100 at my university on clearance about a year ago. SIMPLY amazing sound! I can't justify spending several hundred on the HD650 or anything higher.
Simply put, if you enjoy what you have, don't let anyone else dictate your purchases. Everyone enjoys a different type of sound and some people drop thousands just to sway their e-penises. To each their own!