On 24/05/2011 19:40, Dwayne Reid wrote:
> The keyboard most likely has a very low output impedance.  Thus: if
> the guitar signal were shorted to the keyboard signal, the low output
> impedance of the keyboard would attenuate the guitar signal significantly=
..

Yep, this is my guess still too, and thinking about it a problem with=20
the cable does seem like a good bet. I can't think of another reason=20
other than the output impedances that would account for the symptoms at=20
present.

> One way to have confirmed this would have been to have seen if the
> keyboard signal showed up in two channels on the mixer.

That's a good point - I think the OP mentioned he did try this and=20
mentioned "crosstalk" across both channels. Trying again and checking=20
the levels would be a good idea (e.g. whether it's a short and the=20
levels are pretty much the same or just the small amount of coupling you=20
would expect from a long run of cable passing unbalanced signals)
Another quick way would be to use a multimeter if one is handy.

--=20
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