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Old December 18th 04, 07:45 PM posted to uk.rec.audio
Trevor Wilson
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Posts: 801
Default Cartridge impedence question


"harrogate2" wrote in message
...

"Trevor Wilson" wrote in message
...

"Rob" wrote in message
...
I'm having to cobble together an interim phono premap solution,

and I'd be
grateful for some advice.

I've got a MF LPS phono amplifier rated at 100 ohms input

impedence for
the MC bit, and an AT OC9 cartridge rated at 20 ohms load

impedence.

Does this matter?


**Nope.


If so, how do I correct it?


**Don't bother.


--
Trevor Wilson
www.rageaudio.com.au



The 'old' electronics rule was always low Z source, high Z load, so,
as it says above, provided you have enough gain it will not be a
problem.


**Not quite. Most MC carts are designed, specifically, to be terminated with
a low(ish) load impedance. Unless so terminated, frequency response,
dynamics and distortion will all suffer.


--
Trevor Wilson
www.rageaudio.com.au