TechPowerUp reviewed the Symphonium Audio Helios In-Ear Monitors
A quote from the article:
Symphonium Audio aims to re-establish what balanced armature drivers are capable of with its new flagship. The Symphonium Helios is the result of clever engineering and lots of elbow grease, and ends up being one of the most exciting IEM releases with good tuning, excellent technical performance, and much, much more!Symphonium Audio Helios In-Ear Monitors Review