Hey there, FWIW I tried the ikko OH1 in a search for an alternative to my ibasso it01. The it01 are great for the money, but fairly Vshaped, especially depending on tips used. Also, going from something with BA drivers back to the it01 made it's coloration of vocals more obvious. That being said, I still sent the OH1 back. I auditioned :
Simgot en700 pro
Simgot em 1
Simgot em 2
Bvgp DMG
ikko OH1
kz zs7
CCA C10
HIFI f30
BQEYZ kc2
And I already have the ibasso it01, fiio f9pro, 1more triple, 1more dual, think sound rain03, final es3000, mee m6pro.
Lots of budget options here. My go to were ibasso and 1more but I was craving a change and wanted something with the crispness of BA drivers. Picked up the DMG first. Muddy, mid bass bloated mess to my ears. I had to use the vocal filters, and vocal enhancing tips to get any sort of clarity out of them. Next I tried the ikko and the simgot em2. Really liked both of them for different reasons which if anybody is interested I can get into at a later time.
LSS, I settled on the CCA c10. Least colored, most natural while still have some bass heft and weight to the notes. Fast and agile midrange without that tin or glassy sound (or not as bad as some anyways, still not on the level or oppo pm3 over ear or akg k7xx, but closer than the other auditioned)
If you want a more detailed review of any just let me know and I can let you know what about each of those turned me awY
Edit: I realize the 1more and fiio f9 both are hybrid designs, that's what opened my world to BA drivers. 1more is still veiled sounding, like sennheisers tend to be, and the fiio f9 is just so darn pesky in that 6-9khz range. I wanted something with the airiness of f9 without the peaks and the weight of the 1more without the veil.