Kuzma 4Points and Lyra carts

Karl, in regards to the Lyra cartridges the 4 point 9 is the best choice. The 11 will work but the 9 will undoubtedly have less distortion because of it's lower polar moment of inertia and I think you can get a feel for that in the reviews. Both arms will be a significant improvement over the Morch. You will notice an improvement in bass detail and power. 

@karl_desch 

Sussurro is low compliance - 10microm/mN

https://sound-smith.com/cartridge-compliancearm-mass-chart

Dear @karl_desch  : ""  I think it’s worth noting that some arms probably deal with vibrations and resonances better than other in the same effective mass range.  ""

Yes, sometimes better than other and sometimes just different.

You can analize the Reed 3P that's too a very good design and comes with removable headshell where its EM ( cocobolo or ebony ) is almost the same as the Kuzma 9.

That's an alternative you can thing about and where you will be safe too:

https://www.reed.lt/product/reed-3p/


R.

The 4 point 14 has been here for a few days. No regrets even though it is about $1000 an inch more than the 11. “ substantial and satisfying “ sums it up. The arm just seems to be in control. I know blacker background is a tired cliche but best I have at the moment… sound coming from silence, smooooth

and I’m still dialing it in

Next i plan to get another for my mono cartridge. I love this thing, I’ve bought dozens of items in the past few years and this is one of the few where you hear immediately how much better it is than what you have . Of course that does nothing to help the OP with his 9 versus 11 question except I don’t see what the caveats expressed about setting up longer arms are about

I do think a lot of it has to do with the 19 g effective mass of the Kuzma being a better match for the Miyajima Destiny than the 12 Gram of the Moerch

anybody want to buy a Moerch DP8 ?