optical out sound card for linux?

[phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org]

>> >
>> > I read that with highest end head phones, they are
>> > "extremely high impedance headphones"
>> > and they can suck large with cheap
>> > sound amps, and I am guessing a sound blaster
>> > card is just that.

>  I'm curious if it's just the soundblaster (and PC sound
>> hardware in general) which sucks, or if the headphones really draw a
>> lot of juice.

Just to clarify, higher impedance phones would draw *less* current. Ohm's
law: I=E/R where R in this case is an impedance.

A sound card might well have difficulty driving *low* impedance headphones.

-- 
Peter Hiscocks
Syscomp Electronic Design Limited, Toronto
http://www.syscompdesign.com
USB Oscilloscope and Waveform Generator
647-839-0325

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