Brief background: I purchased custom Jh13 Pro eons ago, broke them (a painful memory) and then upgraded to the JH16 Pro original version. I really liked them, unaware, apparently, of their technological primitiveness. Three of the drivers went bad recently. I was told this by the service person at JH Audio. They offered to fix them for $425 or so, or to give me a discount on one of their current models. They sent me Roxanne and Lola demos, which I have at the moment. I would kind of like to stick with JH Audio out of a certain brand loyalty and a "made in the USA" thing (which I certainly do not practice consistently in my life).
I will add that the people at JH Audio have been really friendly and responsive and nice.
I was pretty keen to try the Roxanne, which is billed as "ideal for rock music." What I have found so far is that the sound is JH Audio "thick," on steroids. I like the JH Audio sound, but Roxanne may be too much for me. The treble rolloff is extreme. Even my cheapo Blon-BL03 have better treble. I have experimented with the variable bass, and I do like it at about 2-2.30 p.m., so I guess I am a basshead. But the overall signature seems compressed and too thick to me. There is not enough detail. I have tried the Roxannes with my iphone w/Dragonfly Red, my A & K SR15, and my ifi micro idsd black label DAC.
I say this with the caveat that I am an older guy and my hearing up past about 8 khz is almost nil. I have my own treble rolloff. But I can hear the Roxannes rolling off well below the limits of my high frequency hearing limits.
I have also tried the Lolas, and I like them better. More detail, a bit airier and more open. Great bass and sub bass. Better treble, though the high frequencies are not a strong point relative to any number of other IEM's. A possibility.
But atm, my inclination is to simply upgrade to the current version of the 16 Pro. I liked the signature for six years; I liked the level of detail, and I liked the bass. It is also less expensive than "the girls." I am actually tempted just to fix the old 16 Pros, but I am realistic enough to know that some of the other drivers will likely go bad within the next few years. It is time to move on . That's my two cents' worth.
Doug Greenberg