Path: utzoo!attcan!uunet!mcvax!enea!dkuug!auc!i8d311v
From: i8d311v@auc.dk (Morten Tolboel)
Newsgroups: sci.electronics
Subject: Re: Using Phono in for CD input.
Keywords: audio, phomo, cd, stereo, hack.
Message-ID: <244@aud.UUCP>
Date: 16 Jan 89 09:08:48 GMT
References: <1619@cveg.uucp>
Reply-To: i8d311v@iesd.dk (Morten Tolboel)
Organization: Aalborg University Center - Denmark.
Lines: 31

In article <1619@cveg.uucp> gmg@hcx.uucp (Greg M. Garner) writes:
>
>I have a Fisher RS-1035 stereo receiver that has a Tape input, aux input,
>and a phono input. I would like to hook my CD up to the phono input, but
>it doesn't work right. I assume that the phone level input is much 
>lower than the CD level input, along with having a different input
>impedance. Is there a circuit (like maybe a resistor divider network)
>that would let me hook up the cd? (I might settle for hooking up my 
>Amiga stereo audio outputs there, as it is not as high quality as the cd)
>
The inputlevel and the impedance isn't the only problem here.

In a phono-input of a receiver there is a so-called RIAA-filter,
which will tear-up your nice CD-music (damping the higher freq.).

My suggestion is to make a switch between your aux-signal and
your CD-signal, as they both have the same level and impedance AND
don't involve nasty filters.


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