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Music Manic
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Joined: 20/12/02
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Loc: London UK
Using guitar cables for line level new
      #934675 - 16/08/11 02:50 PM
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Is it ok to use guitar cables for line level? Also, do guitar cables deal with electric bass in the same way? I know different capacitance on cables will alter the high frequencies (sometimes for the good) but what are the ballpark figure(relative to capacitance) to look for?

Does capacitance just affect high impedance signals?

Thanks


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Mike Stranks
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Joined: 03/01/03
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Re: Using guitar cables for line level new [Re: Music Manic]
      #934681 - 16/08/11 03:20 PM
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Simple answers to the key questions:

Quote Music Manic:

Is it ok to use guitar cables for line level?


Yes

Quote:

Also, do guitar cables deal with electric bass in the same way?


Yes


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Hugh RobjohnsAdministrator
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Joined: 25/07/03
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Re: Using guitar cables for line level [Re: Music Manic]
      #934708 - 16/08/11 04:27 PM
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Quote Music Manic:

Is it ok to use guitar cables for line level? Also, do guitar cables deal with electric bass in the same way?



These have already been asnwered, and I'll leave it at that...

Quote:

I know different capacitance on cables will alter the high frequencies (sometimes for the good) but what are the ballpark figure(relative to capacitance) to look for?



Depends on the situation, but for mic cables, anything between about 40 and 150pF/metre is common. For unbalanced cables most are under 40pF/m.

Quote:

Does capacitance just affect high impedance signals?



No it afects all signals, but it only becomes problematical for high impedance systems (a signal doesn't have an impedance -- but the interface connecting it from source to destination does).

In simple terms, the cable capacitance appears between the hot conductor and the grounded screen, so it is placed aross the destination's input impedance, forming a low-pass filter. The turn-over frequency of that filter depends on the amount of capacitance and the source and destination impednaces of the rest of the circuit.

hugh

--------------------
Technical Editor, Sound On Sound


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