I have the UM56 custom tips that I bought once upon a time to go with the W4. I find that the W4 benefits from the custom tips more so than the UM3X. I prefer the Shure gray silicone tips on my UM3X for ease of insertion and removal. I find the bass is tighter with silicone over foam but that's just what I've found. I do like the shure olives too.
I've had my UM3X for about 6 months now. Still one of my favorite universals with wonderfully intimate vocals and superb layering and separation. I tend to just use them from the nano or iphone ho but they sounded pretty awesome with the O2 when I had it.
Hi, can u tell me the difference btw Shure gray sili tips, and the Shure blk olive tips? Is two different tips or both the same but diff name? What is your comments using UM56 with UM3x, have got some issues with them? Tchow!