I currently own the W4, and am looking for an upgrade from these, in IEM form. I was looking at the AKG K3003, when these were mentioned.
I was really opposed to the concept of getting customs for a number of reasons: the potential for refits, hassle in day to day use (lubricants/taking them in and out at work), and inability to share the glorious sound with friends.
However, seeing as the K3003 are around $1000+, the UM Merlin has come up as a serious consideration. I have some questions, however:
1) What material is the casing made out of? Do you need to use lubricant? I have never owned customs, but remember reading that they need lubrication to get them in...this seems like a huge hassle, especially for something meant to be portable. I have gotten used to whipping my W4 in and out during my daily commute/at uni/at home.
2) My ear canals are also slightly sensitive - they can sometimes get irritated with long listening sessions using the triple flanges on my W4. How do the Merlins feel for long listening periods? Do they cause irritation?
3) Has anyone tried these with Black Metal/Grindcore/Brutal death metal, particularly the poorly recorded types? The W4 are forgiving in this regard, and that's why I prefer them over other universals I have tried.
4) How is the bass speed? In particular, Raster-Noton type artists like Ryoji Ikeda, Alva Noto and Pixel, as these artists seem to be 'gold-standards' in terms of bass reproduction.
5) This is quite an ask, but if anyone has the W4 and Amarra - how do the Merlins compare
un-EQed with
W4 and Amarra EQ at these settings:
Would greatly appreciate any and all responses!