The F2 is probably my favourite new IEM from the show. It's price-to-performance ratio for a CIEM is (to me) unmatched, and the options you get with CustomArt's expertise in both the acrylic and silicone realms makes it a no-brainer for any IEM enthusiast's collection. It's an extremely intimate sound, and it has great dynamism, but it's somehow laidback as well. Although this may seem contradictory, this combination allows it to sound fun and engaging because it's so up-close and personal, yet the details are never aggressive or in-your-face. It's lively, impactful, and it can both serve as a toe-tapping trigger when listening to funk and deliciously smooth R&B, and lure you into a sweet, silky arrest when listening to jazz female vocalists or choirs. It's perfectly linear from bottom to top with a fun-and-musical-oriented signature (i.e. a slightly elevated bass response, smooth yet airy and open mids, and a sparkly, energetic, yet fatigue-free treble), and it's a great foil to CA's own Harmony 8.2 which is darker, bassier, but has better technical performance. The F2 is truly an all-rounder CIEM in that it fits every genre I threw at it, as well as on its (albeit rumoured) excitingly accessible price tag. An absolute banger from Piotr and CustomArt, it's very refreshing to be this hyped for a "budget" CIEM, and the FIBAE 2 is an instant purchase for me at release.