E2023 Janus3 evaluation excerpt:
The Janus3 features a classic agreeable, middle-of-the-road sound with a natural timbre and average technicalities without major flaws. In terms of richness, they are more on the lean side but without any stridence, which adds some articulation to the overall sound. Although the shells are small, the drivers are reasonably large (10 mm, compare to Sennheiser IE900’s/IE 600’s 7 mm), and hence produce some decent heft at the low end. Sub-bass extension is excellent, an annoying midbass hump is missing, and the lower end can develop a good punch and impact… it all depends on insertion depth: deeper means thicker. A satisfying low end that is well layered, well composed, never too thick, and it does not smear into the lower mids either.
Source: Audioreviews