It is super dependent. The metallic edge is indicative of stock tips. Hopefully, in the future DUNU will include the tips that present the best quality. No pitchforks and I dont think he was put on blast. I was merely saying I have had this unit since Day 1 and have encountered what he is describing and saw another thread elsewhere highlighting the same. If you read the link to the thread I posted and the quotation from my write-up referencing this you will understand what I am talking about. It is not about his review it is about the "issue" he didn't know he had in his review. Below is a link to a write-up I completed, you may find it helpful;Wasn't gonna comment, but to be fair, it's just another opinion. People shouldn't be put on blast for having one.
I actually have the Luna on demo right now, and I'm not too fond of it either. The treble is not recessed to my ears, but it does have a distinctive, metallic edge that really grates. The midrange is also tuned, well, wonkily to say the least. The Luna certainly has its merits, but the general tuning is not one of them for me.
Before the pitchforks come out, I'm currently running the Spinfit CP145 with a good seal. They're definitely quite comfortable for my smaller ears. Still, I'll definitely be tip swapping some. The Luna seems quite dependent on that, and the gentleman who sent me the Dunu line-up mentioned this as well.
https://audiorabbithole.com/dunu-ramblings/
If the Luna isn't your signature that is totally understandable. I have no skin in their game or anyone's for that matter. My Luna was paid for and not a review sample, frankly it is one of many in my collection.