I was going to say that the FiiO x Crinacle FHE:Eclipse costs $20 more than the FiiO FH3 it is based upon, which seemed a lot for a re-tuning collaboration without any other changes, but then struggled to find the FH3 at $130 outside of FiiO's Aliexpress store. The usual other suspects sell it for $140–145, making the FHE:Eclipse much more reasonably priced. I understand the reasoning behind a price increase, which are smaller batches and a second entity to share profits with, but if you are able to purchase off Aliexpress without hesitation, there remains a ~15% price hike over the FH3.

The FiiO FH3 is over a year old now and was quite popular for many months. Such is the world of IEMs that many would rather just get the latest flavor of the month, and FiiO has not done itself any favors by putting out many other IEMs since with a similar tuning in a more polished form factor and unboxing/accessory package. I have no experience with the FH3 myself, but a look at several frequency response measurements taken by third-parties confirms the FHE:Eclipse going far beyond just raising the bass on what was already perceived to be a bassy set. It has certainly improved upon the mids/upper mids transition and added treble extension while at it, which helps more than you would think when paired with a massive amount of bass elevation, at least for me.

I can't tell you that FiiO needed Crinacle to come up with this, with recent FiiO IEMs having addressed some of the FH3 issues already and the graph for the Eclipse still easy enough for a few to identify as a FiiO set even before the FHE:Eclipse announcement. Yet it took several by surprise, and FiiO is large enough a brand to dictate terms in this collaboration. Crinacle is enough of a brand in himself now to have a fan base that will generate sales simply by having his name on the product, and the previous collaboration having been a major success lends itself favorably to this one too. This tuning is not for me, and certainly won't be for many others. In fact, the fraction of folks who the FHE:Eclipse will appeal to is a very small audiophile subset, certainly smaller than those who will no doubt purchase one either way. I am not going to burst your bubble on that—it is still a fun set to listen to for jamming along with certain tracks, and certainly not the one-trick pony all the bass emphasis and related memes may make it out to be. Just be sure this is for you before committing to $150, and consider your options in a market that has advanced several times over since the FH3 was released.