ECN Forum Forums Technical Discussion Re: Computers and the Internet Computer Speakers Problem

Sorry Mike, I missed your post of 4/25/03 before.

I've never bothered to check on the output impedance of computer soundcards, but it's likely to be fairly low. Most modern transistor/IC gear has a fairly low output Z of a few hundred ohms to a couple of K or so.

The input to your amplifier is unlikely to be under about 10K (and that mostly due to the volume control resistance when using op-amp type ICs), so I don't think you need worry about that too much.

Bill,
Thanks for getting rid of them annoying triple posts.
How does this happen?, as I think that I am not the only one that has doubled up on the odd occassion?.
Paul,
I was thinking that the output of a Soundcard was in the tens of Ohms, but there are no published figures to go by, can anyone help??.