IMO, a 25' line level IC is just TOO long. Even if balanced, you'd be pushing it (asking for EMI and RFI) for the relatively lower strength line signal (lower than your tuner or CD) coming out of a phono preamp. I'd advise against it. If you want to move your main preamp and the rest of your components along with your TT/phono preamp that's another story (and a very popular arrangement.)
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