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MC loading at 47K

Hi All,

Just after some expert advice from your good selves if I may. My current system is as follows:

Musical Fidelity KW550 intergrated amp which has a MM and MC section, both loaded at 47K. The only difference between them is the step up voltage.

My turntable is the Rega P9 with Ortofon Kontrapunkt A.

Looking at changing my cartridge but honestly cant decide between MM or MC.

My music taste are as follows:

Reggae
Soul
Female Vocal
RNB

No classical or jazz.

So what should I choose based I'm only limited to a 47K loading. I was thinking either of the below:

1. Ortofon Jubilee (MC)
2. Ortofon 2M black (MM)
3. Clear Audio Maestro (MM)

Is there a down side to loading up a MC so much?

Thoughts please...thanks
che13
stops
56 posts
 
The coil in the cartridge is a generator and the external load will damp the generator bringing the mechanical movement (coil) to a quicker stop (back emf). This is analogous to the damping on a speaker by the LOWER output impedance of an amplifier.It is also apparent that a lower resistive load on the cartridge will reduce the output so if you do compare the effects of the various load resistors on the cartridge you should adjust the volume level.There will be an optimum damping for the cartridge that will prevent overshoot of a rapidly rising waveform and therefore trial and error is needed.

Any NON-Personal feedback is welcome.
audiofeil
4,011 posts
 
As I said, lowering the numerical value (increasing the load) will muddy or blur the presentation.

Case closed.
stops
56 posts
 
Thanks for your scientific analysis
audiofeil
4,011 posts
 
Do your homework Sparky.
dopogue
1,767 posts
 
Something that hasn't been mentioned: Anyone with a phonostage offering instantaneous load change comparisons like my Aesthetix Rhea will be aware that the audible difference as you go from sub-100 ohms to 47 kOhms isn't nearly as great as you might expect. Yeah, there's a difference (especially going from sub-100 immediately to 47k) but the incremental changes are pretty subtle.
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