Hi,
So I have been using the Lz A7 since last November, on my Samsung 9+, my hiby r3 pro and my desktop topping amp stack.
I have in my stable, the following;
Tin P1 -very good, very fast and agile with clarity, you hear everything. Bass is meh, but can be Eq to an extent.
Tin t2, starfields, kz 10 pro, it00 basso, blon 03 sit in their respective slots, and were a good introduction.
The LZ A7 is a solid workhorse, it lets you find out what sound you like.
Zero issues with connectors so far.
My only caveat is to make sure that you tighten the filters well, as they can occasionally loosen and fall off when not in your ears…e.g pocket.
The go to filters are generally the black and gold, but you’re rare or tastes may vary.
Solid first purchase, and if I’m honest you could happily walk away from the hobby and spend nothing else.
Enjoy them.