- Feb 8, 2015
One can measure this sort of thing, and as used driven by a low impedance source (headphone amplifier) and driving a modest impedance load (heapdhones) finding frequency response issues due to the cable will be difficult unless its inductance or series resistance is relatively high.
You didn't mention what wire the XLR cable was made from - there are options.
However one option appears to beBelden 1800F cable.http://www.belden.com/techdatas/metric/1800F.pdf
Its resistance and capacitance is nominal, and most significantly its conductor's resistance is stated to be 77 ohms per kilometer. A 1 meter cable can be expected to have a resistance of 0.154 ohm which is trivial in this context. It is highly improbable that 1 meter of this cable has audible losses when used to drive headphones.
Would that not be 0.077 Ohm? Actually they are listed at 3 feet which is 36 inches- a little under a meter which is closer to 39 inches) I don't know the original manufacturer of the cables. Here is the description. " http://www.speakerrepair.com/page/product/all-patch/37-290.html"
I don't believe that there are any well made cables that act as low or high pass filters-just wondering if there were any measurements of typical XLR cables to refer the person to without being rude.