Ethan Winer's Null Tester
geoff wrote:
On 13/11/2018 1:17 PM, Ralph Barone wrote:
geoff wrote:
On 13/11/2018 8:32 AM, Ralph Barone wrote:
.
The one thing that wasn't discussed in Ethan's video was source impedance.
I seem to recall there being an adjustment on one of his boxes for
impedance, but he didn't spin that dial during the tests. If your source
impedance is low enough, wire should just be wire. However if both source
and load impedances are very high, then differences in the shunt parasitic
elements of the cable might be audible (guitar cables). Similarly, if your
load impedance is very low, then series parasitical may cause audible
effects (ie: trying to run a 2 ohm cabinet via 200' of Cat 5).
Maybe that was thought to be too obvious to bother mentioning !
geoff
Perhaps for Ethan, but since the subliminal message in the video was "all
cables sound the same", it would have done good to shed some light on the
applications where cables can actually sound different.
Maybe should have been qualified as "cables of the same type, in the
same application impedance".
Even then, any suitable low capacitance cable used in a high-Z
application such as a passive guitar output to high-Z amp input, the
conclusion would likely have the same result, unless significantly
different shunt capacitance. But that is a separate issue to the wire
itself, and any attached voodoo.
geoff
Right. And I think that's where Ethan's video may have missed the mark. By
not saying "there ARE applications where use of different cables may result
in different sound, and this is how and why that happens", anyone who has
encountered one of those niche applications may just brush off his good
work by saying "Yeah, well I HEARD it."
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