David Looser wrote:
"Phil Allison" wrote in message
...

** So what ???

The whole cable capacitance issue is about loss of HF response - so
testing at 1 kHz is irrelevant.

That same cart likely has a source impedance of 45 kohms at 20 kHz.


The output impedance of an MM cartridge is inductive, not resistive. The
cable capacitance creates peaking with that inductance so that the overall
frequency response is reasonably flat. You cannot do this with a resistive
output impedance, so the MM example is irrelevant.

As far as we know Ian Bell's source is 50K resistive (though it might be
nice if he'd tell us what it is, instead of expecting us to guess).

The booklet that came with a Shure cartridge claims 1550 ohms and 650
millihenries.
So it looks like everyone is right, including Phil. :-)

--
Eiron.