I'm looking into a custom IEM and am eagerly researching the JH Audio 13/16s. I can only afford one and would like to buy the one that would be most similar to the Sennheiser 650HD in sound signature. I love my 650s but don't want to take them abroad with me. They're too large and I want to travel compactly. I've traveled well with the UE Triple.fi 10s in the past, so I know an IEM will suit me the best. Speaking of the TF10s, I've enjoyed them very, very much as my portable alternative to my 650s. So, which of the JH Audio offerings would compare most similarly with the 650s? For me, the "darker" sound of the 650s hits the sweet spot for my tastes. They just kind of play everything really well, to me. And, I listen to a little bit of everything. My least listened genre is probably classical, though. Thanks, folks.