optical out sound card for linux?

[tleslie]

On Sat, 2007-07-07 at 09:57 -0400, phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org wrote:
> >> >
> >> > 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.

Yes thats what i read, apparently these will draw much more, or ask for
more Voltage, is it possible the voltage requirements are throwing the
card for a loop?

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

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