Need a new cartridge recommendation for clearudio concept black.

1+ on the 2M Bronze. The Grado Prestige Gold 2 has a consumer replaceable stylus and the Grado Reference Sonata 2 will outperform all the previously mentioned cartridges. For MM cartridges it is very hard to beat Ortofon and Grado. My favorite MM cartridge is the Ortofon 2M Black. At it's price it is a real winner. (also removable stylus). High output moving coil cartridges have higher effective masses due to the larger coils and tend not to track as well. 

for a MM-only phono preamp I prefer the Hana EH over the Ortofon 2M Bronze.  Both are at the same price point.

The Sumiko Moonstone has been a great cart for me.  Easy to set up, smooth and engaging sound, and replaceable stylus when the time comes.

These are great.  Thanks.  I think the clearaudio phono preamp switches easily between MM and MC.  Would you all suggest MC in that case?

Have you talked with your dealer? ClearAudio sometimes ? offers trade in allowances for upgrading their cartridges. Also, consider sending it to Sound Smith for repair. Well worth two phone calls to hear what they have to say.. .