mmh... talking about ZSA and ES4... I have a pair of ZSR since a few days and I really like them... so I wanted to try another model from KZ, but they are infamous for having so many models... I ended up with this shopping list XD (I also have a 3 USD seller discount, and maybe even some more discount from a code I found in a review on SoundphileReview)
(note the Es4 has 2 extra cables, it's 11.26 USD otherwise). I have checked the price history and the discounts are real (not the fake 50% advertised on the item page of course, but still relevant) here is an example:
https://www.pricearchive.org/aliexpress.com/item/32875117793
Yet, I think 5 KZ models is a bit too much
and it's over 50USD... so which one would you avoid? For example, I'm considering dropping the ED16 unless it's really worth it, cause I don't think the cables I'm buying for the ZSR are compatible with the ED16 (or unofficially they are?). Or myabe there is some other must-have model I forgot?
By the way, is there any other cheap accessories I should add to the cart? (the KZ USB-C cable and the TRN BT cable are already in the list)