Difference between ZYX 4D and ATMOS

No evidence, but here is the latest revision of the truth.

6. The ZYX Atmos and 4D are NOT the same cartridge contrary to what Mehran is saying.

Here is more detailed explanation from SORASOUND website:
http://www.sorasound.com/truth-on-atmos-4d/

Still no word from the counterparty - KT...Are you here at all, if yes, can you explain why they are different?

They cannot explain why the carts are different because they are NOT different, except for the name. They look exactly the same. They have the same specifications, and ZYX -- not the current distributor -- told Mehran they were the same. As I mentioned in an earlier post, I wrote to KT Audio directly asking for an explanation and received no response. Nor will I (or you). What can one conclude from any of this except that the carts are the same and their claims otherwise are a shameful lie? The Atmos and the 4D are the same carts with different names for different markets! If that's not the case, somebody tell me how they are different, because I haven't heard it!!

Gsparsons sums it up nicely. The Atmos and 4D ARE different - they have different prices, different looks and different names.

It seems pretty clear that current ZYX owners are not interested in buying replacements under the new pricing policy from the new distributor. I've heard the Universe and it is quite good. What I'm curious about is after Mehran's supply runs out, to which brands of cartridges are these owners going to migrate?

I will migrate toward the new cartridge(s) sold by Sorasound.