
Compared to LUA Synchronicity (Review link)
Right under the Celestian on the product family sits LUA Synchronicity. Synchronicity upholds the same core concept of this ‘neutral-driness’, this adequate driness, that makes the dynamic driver-like texture full-blown, bringing a uniquely analog timbre to the music. However, compared to Celestian, the Synchronicity has a more linear, flat sound signature. The sub-bass is slightly less in quantity and more evenly layered out. Mids are tighter in body; if Celestian’s mid-range was neutral-thick, Synchronicity is loyal to being straight up neutral in thickness. Celestian’s vocals are thicker in body and tone, providing a more immersive sound character. Instead, Synchronicity’s vocals sound clearer, agile, and resolving.
Synchronicity’s highs are a bit lesser in quantity than Celestian’s, making it an ideal choice for those who want clear, dynamic-textured, and airy vocals but don’t want the trebles to get too high in contrast or dominant. For overall sound performance and tier, Celestian surely sits above Synchronicity since Celestian shows superiority in resolution and both-end extension. Though the sound signature difference and pricing difference make Synchronicity just as good a choice, perhaps even better, depending on your taste of sound.

Compared to AME Igris (Review link)
The bass is more upfront in presentation, getting more personal, engaging, and dynamic. The bass extensions and resolutions are similar, but Igris introduces more sub-bass quantity and scales larger in size. For the mid-range, Igris’ vocals sound more soothing in texture and damper (or even oily) in timbre, a contrast that was rightfully expected; Celestian (or LUA series in general) desires an ample dynamic driver-like texture, adding more analog tone to the sound. For absolute technicality, Igris performs better, though for timbre and overall addictiveness, I wouldn’t place Celestian any lower than Igris. I actually find Celestian’s sound both more unique and addictive.
Those who dislike the timbre coming from the so-called ‘hybrid-sound’ and prefer the single-driver timbre, or dynamic-driver timbre, then Celestian would serve you better. If you’re comfortable or rather prefer the extra lush, modern, and silky textures, Igris would fit you better. Another just as important decisive factor would be the bass quantity. If you want a more basshead approach and want that ‘big bass slam’, and especially if you listen to rock and metal, Igris is the way to go. If desiring a more neutral sound, then Celestian would be nice.

A Flagship That Plays Differently
Recapping the overall product concept and tuning, Celestian is a beautifully built IEM inside out. Celestian is such an artist who doesn’t follow the usual playbook. Instead of chasing exaggerated technicality or dramatic tuning shifts, it leans into emotional timbre, multisensory presentation, and a uniquely artistic identity. From the moment of unboxing it, Celestian offers you fragrance, visual art, and tactile design that all come together to set the tone. It’s not just an IEM but a statement piece that embodies the philosophy of Rossi&Wing: a blend of artistry, engineering, and experience.
Of course, Celestian is not just about the concept, as these non-acoustic features are based on Celestian’s sound performance and technicality demanded as a flagship IEM. The sound is a careful balance of analog warmth and analytical clarity, making Celestian one of the few IEMs that can feel both nostalgic and modern at once. The tuning is thoughtful and colorful without getting flashy. It doesn’t try to impress with sheer quantity or contrast, but rather with coherence, texture, and tonal finesse. The mids are especially memorable, offering a vocal presentation that feels intimate yet clean, emotional yet controlled. The bass is deep and solemn, and the highs are crisp without being sharp. It’s a sound that grows on you – not because it’s subtle, but because it’s sincere.
If you’re looking for a flagship that offers more than just sound, something that feels curated and personal, Celestian is worth serious consideration. It’s a rare case where the concept and execution meet at the same level. Not only because of its gorgeous looks, but also for its equally gorgeous sound…




