Here you go. Check out the "can you guess how this sounds?" section.
When back from a bit of travel I plan to order a Grado Gold 3 for testing. Xtalk 35dB! The Grado's are a bit of an odd fish.... But the Grado body (outside of the flagship "woodies") has been in use unchanged for 40 years.... and in the past the flagships used this body, that means that if you...
audiosciencereview.com
I added a comparison to a flat cartridge to the measurements of the Sumiko Pearl as it is an extremely colored cartridge.
If you have access to a desktop EQ program such as Equalizer APO and the Peace GUI you can follow Sean Olive's lead and make the $15-$19 JBL Endurance Run 2 earphones near reference quality. There are EQ instructions in that twitter thread.
I think that it would be great for us all to be able to have a way to "hear the same thing." This is a very affordable way to do that, and more, you get an extremely good little set-up. The Sumiko Pearl is the worst cartridge I have ever heard (that is functioning), but then my stereo system is Harman neutral and not everyone has that. In the turntable world people forget that they are often listening more to their speakers and room than cartridges. So, for example, if you have old school B&W speakers that are notorious for their screaming highs, then the Pearl could sound good to you and you could think I'm crazy. But at least with reference headphones there is a better basis for understanding what the cartridges are actually doing even though what matters is the overall system. Plus it's a treat to hear a Shure V15 V-MR recording on them!
EDIT: Attached is the EQ filter for the Peace GUI. Try it out. It's $15 well spent.