Look forward to your Olina versus Oxygen impressions!
The Tripowin Olina is on a massive hype-train on Facebook and social media, purportedly it graphs similarly and uses the same driver as the Oxygen (I think this driver part was claimed by BGGAR). Well the same driver claim needs to be verified independently, as a lot of CHIFI are claiming beryllium drivers or the latest hyped materials, but on the shell being taken apart, some were noted to have fake claims:
https://www.head-fi.org/threads/bgv...d-new-ba-series.894331/page-327#post-15987274
Okay, even if the drivers and graphs are similar, between the Oxygen and the Olina, the shells are totally different. The shell size, nozzle sizing, shell material, dampers etc all affect resonances and will affect the sound. The Oxygen has a very short nozzle for instance, which supposedly has a part in the sound (the guy who tuned the Oxygen also tuned the BLON BL-03 which has a short nozzle).
Even if 2 graphs look the same, graphs don't tell the full story. There are some components such as timbral accuracy, imaging, dynamics, micro-details, instrument separation that cannot be gleaned from a standard FR graph.
Case in point: KZ ZSN Pro X and the TOTL Final Audio A8000 graph similarly but sound miles apart.
I realize some of the folks posting reviews of the Olina on social media haven't even heard the Oxygen before, so I'm taking this one with a huge pinch of salt. Look forward to your review once you get the Olina!