I paid $400 + $25 for my impressions for my JH Audio JH5's which are a dual driver.
JH5 is a poor man's JH16. I had both at same time) It is a fantastic offering and is at least equal or beats everything up to a quad driver in the universal market. Trust me I have had pretty much all. Fit, obviously is fantastic but cohesiveness is outstanding too. For example, even though it is a dual driver it still has two separate exit bore holes for the music to come out of. JH5 may be my best $400 ever spent in portable audio over the years.
I understand that Jerry Harvey was the mastermind behind TF10 Pro. Then when he left Ultimate Ears and started JH Audio the first IEM he wanted to "improve" upon or change from what Ultimate Ears ideas were....was the JH5 (versus previous UE5). It's the best bang for buck IEM in their line up to their hideously priced Roxanne and Layla offerings costing 3-4 X as much
Ask here or PM me for further details, no problem. After 12 years here my objective (other than to enjoy conversing about great audio)...is to shorten the learning curve to great portable audio).