At 08:37 3/07/00 +1000, you wrote:
>Folks,
>
>I know someone here can help......
>
>I need some assistance with some kind of impedance matching circuit for a
>home audio system.
>I believe the old phono inputs (remember LP players?) had high impedance
>connections, whereas the inputs for a tape or CD are lower impedance.
>I'm trying to feed a CD output into a Phono "port" on a stereo amplifier.
>As it currently is, I get all sorts of distortion (sounds like it' s being
>overdriven)

You'd be dead right there!

>Can I simply "pot down" the CD lines, or do I need to use transformers?
>Anyone have some circuits for such beasties?

You need to reduce the level a lot & also apply inverse-RIAA equalisation.
Elektor published a circuit for it once - worked quite well too.
You can buy the Avico CDS6 box that does it for about AU$25.00 retail.
Regards...

___________________________________________
David Duffy        Audio Visual Devices P/L
U8, 9-11 Trade St, Cleveland 4163 Australia
Ph: +61 7 38210362   Fax: +61 7 38210281
New Web: www.audiovisualdevices.com.au
New email: avd@audiovisualdevices.com.au
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