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.

I have both the Earsonics SM3 V2's and the UM3X RC's. After listening to each for a couple hours, I highly preferred the SM3s as they sounded much cleaner and had better clarity overall. However, my UM3X's sounded very muddy for some reason. I am using the stock comply tips for the UM3X's and stock double flanges for the SM3s. Could the comply's be at fault? If so, which tip do you guys think works best with the UM3X?

Yes, the whole Shure Olives things confused me for years.  I was expecting to see some green tips.  Until some long unused brain cells turned on one day and let me in on the secret that olives come in different colors including black, like Kalamata. 

Hey maybe we should start calling them Shure Kalamatas! 

Just received my new pair of UM3X's. I have been using the Shure SE425's which are a bit bass light and analytical. I was looking for something a little fuller sounding. I have Triple Fi's which sounded nice but are about the worst fitting IEM's I have tried.

So, I popped the UM3X's into my ears and was very disappointed. Where was the clarity? Kind of sounded veiled and muddy to me. I tried all the supplied tips and although they altered the sound a bit compared to the Complys, It still sounded rather dull. The SE425's seem much clearer in the mids and highs, most likely as a result of being light on bass. I was kind of trying to find something as clear with better bass.

I was about to give up but decided to try one more thing. I de-cored some Shure Olives and inserted the Sony Hybrids over these. Eureka! I found what I was looking for. The guitars and voices now have more brightness that I was looking for. The leading edges of notes were sharper and clearer. The separation and soundstage everyone talks about finally made itself known. Before these tips, not good.  I know I could have EQ'd them but I REALLY HATE using EQ. I prefer to find and IEM that sounds great with no EQ.

So I guess the SE425's are going back. They do have really nice forward mids and great detail but the lack of bass made rock and metal sound a bit too tame. They are really nice for vocals, acoustic music and classical. Not so much for rock & metal.

Hope this is the end of my quest. It's gotten pretty expensive to say the least!

Hello Everybody I'm new here.

I was wondering what is the exact difference between UM3X and the Westone 4R, which one do you think sounds better?

Thanks for everyone's input.

UM3X is certainly a richer, more fun sound to my ears and more forgiving on crappy sources.

After hearing the UM3X for the 1st time tonight, i can say  my TF10 or IE80 will be sold immediately. 

i wont even waste my time repeating paragraphs of what people have already said. These things are just amazing. And ive heard only one song. ATB-Klangwelt.Im in love. Thats all.