TANGZU - Zetian Wu

Tanzu Wu Zetain is a little dated, but I like how it sounds. I find the Aether a little anemic - but I like warm IEMs. In 2025 - I'd say the T10 pros come really close at a way lower cost

Pardon my rambling. I'm kind of jumping around topics. Deuce does take EQ well, but make sure your source is clean. High output impedance will affect the bass - that's how those impedance adapters work. Deuce is a twin dynamic driver IEM with a woofer driver that primarily works under 300hz. Planar iems like the 7hz Timeless and related Shuoer S12 have *very fast* bass that doesn't hit extremely hard for how it graphs. The attack and decay is nearly instant, which is good for really busy music, but given your artists & genres it's not something to think about too hard. I've got a Tangzu Zetian Wu, which is from the same generation, and it doesn't hit as hard as my Kailua, which is a twin dynamic with a similar subwoofer crossover as the Deuce. They graph almost the same in the bass - that is, the Kailua and the Zetian Wu. Also, the shell is huge on Deuce. Make sure you're willing to sell it if it doesn't turn out as expected. It's even bigger than the Zero Red in my experience. What else to consider... most IEMs with a reasonably large driver or center dome should give you the expected punch/kick from EQ. Given you're willing to EQ to get what you want, Deuce and FD15 should be high up on the list. **Given you are willing to buy used**, you should check out the Sony XBA-N3 - My favorite high bass IEM, period. It's really, really good out of the box. "N3AP" is a 3.5mm termination and "N3BP" is 4.4mm pentaconn. I mostly listen to things like happy hardcore, DnB, and 90's Jungle - but I also dabble in jazz & symphonic poems. It can handle all of those. Just keep in mind not to lose the tuning foams in the nozzle...! They're hard to find. Good luck out there! It's tough finding an IEM that hits hard as one would really enjoy.

Can confirm. Heyday is a detail/separation monster.

I am using tangzu zetian wu heyday, not necessarily the best choice, but tuning works good for me. If swapping IEMs solves the issue it is probably due to different sensitivity, but i am not 100% sure, might be something else too.