HIGH output MC verses High MC???

Less inertia to overcome in the lower mass motor assembly, which yields generally faster transient response and perhaps greater detail. This is also dependent on other limiting factors in your component chain...

But the best thing to do is just try it for yourself and see what differences you notice. No amount of words or theory, or other folks' opinions can take the place of an aural evaluation.

i posed pretty much exactly the same question on 7/16. check out that thread...you'll find all u need to know and probably more

To make aN mc cart higher output, you must have more windings on the coils, thus making it heavier. This supposedly makes it less responsive, but produces a higher electrical output.

It's a trade off, because you need higher gain on your preamp to make up for a very low output cart...

Do you want noise, or detail? Can you hear the difference?
Yes. I've owned high output and low output benz ruby's, and the lower output version definitely sounded better.

Of course you can use a step-up transformer for no noise increase into a standard 40db phonostage, however very good ones are very expensive. I've used cheap lundahl trannies, and while quiet, they were not very transparent. (ducking)

So, you need to weigh the advantages against the disadvantages.

The real question, will it be an upgrade? Depends how you do it. I'm however going to say NO.

There recently was a thread on the same subject. Everything else being the same, a low output MC cartridge will resolve more detail because the lower-mass coil is mounted to the cantilever rather than the higher mass magnet. Since there is less mass, the cantilever, and therefore the stylus, will be able to respond more quickly, giving enhanced resolution that will translate into better detail, bass, dynamic range, etc. The downside is that a phono stage of higher voltage gain is required to give the same volume output. Recently with higher flux density magnets such as samarium cobalt and neodynium, higher outputs can be achieved with the same coil structure.

Why more people are not using high output MM carts is still a mystery to me. Currently TRL is developing a battery phono stage that needs a high output cart and it will run with anything on the market today, regardless of price. Probably available to consumers by the fall. You can bet that people will be taking a new perspective on very expensive carts and phono stages after this one hits the circuit.