I also bought my UM3x recently too and I am enjoying them. I've never heard any buzzing coming from my ipod headphone jack. I am, however, using a old 5th generation ipod. All in all, I think this is the best IEMs I have ever owned. Edit: now that you mention it, they are a bit loud (still no...

I am about to buy the Westone UM3x. I don't know which amp I should get for it though. For the Shure SE530, people usually recommend the RSA Tomahawk. I just want to know which amp, but preferably one that has a decent DAC, would work best for the UM3x. The only nice amp in my budget is the...