I love my rock zircons, but does anyone know an IEM that is a step above the zircons while having as much bass as the zircons. I tried TFZ Series 1 but while it definitely has more mid-bass, I found that the sub-bass rumble on the zircons was much stronger. I also tried Maples but to me they...

Some sellers already have the TFZ with updated cables, try to get one with updated cables from LMUE.

TFZ Series 5 for $52 if you go a page back. And Pastapipo's review states that his Vivo XE800 lacks a bit bass out of the box.

Okay apparently I confused the **** out of a seller on AE and now I got the TFZ 5 for 45 bucks.

Could you give short comparison between the 3 and 5. I'm looking for a good IEM with V-shaped signature atm. I can get the 3 for 45usd and the 5 for 60usd. Is it worth paying extra for the 5?

Yes, I know that, but these looked like he took them himself, because you could see that they were taken right in front of his PC

The seller showed me pictures and they show a Magaosi pouch. So I think these are legit. Not sure though we he puts NAOI in the title, he does the same with HLSX M1.

I asked the seller for pics and they showed a Magaosi case

NAIO BK50 is the cheapest BK50 I could find on AE and it has black cable option which I like more. Anyone can confirm it is the same as HLSX? And what types of genre is the BK50 most suited for? In what way will it be better than my ED9 and Zircon?

I've come across the cheapest BK50 I've seen yet on AE. https://nl.aliexpress.com/item/NAIO-BK50-Double-Unit-Moving-Iron-In-ear-HiFi-Earphone-Wood-Ear-Buds-MP3-Stereo-Headset/32692802095.html   It says NAIO as its brand but I'm pretty sure it's HLSX BK50. Also black cable is available.