On Fri, 23 Apr 2004 22:23:42 +0100, beeyp jars wrote:

I was about to purchase the Beyerdynamic DT990 PRO
(http://www.veronica.co.uk/dt990.htm).

But noticed its impedance is 250 ohms and my sound card's manual
(Creative Live 5.1 Digital) says 32ohm for the OUT socket.

Q: Will it sound very bad with a low volume and hence definitely require
a headphone-amp?

Don't expect miracles from the direct output of a sound card whatever
the rating. But the mismatch here isn't huge.

If you're into music, you feed the output into a decent stereo system,
I hope? Not into toy "computer" speakers. This will have a
headphone jack.