I spent a couple of hours this week testing out the Fearless S4, S5 Turbo, S6 Rui, alongside the BGVP DM6, Fiio FH5, and HiSenior BA 5, 8 and 10. In my view, the Fearless S6 Rui took the top spot. The DM6 was close behind, and on par with, strangely enough, the Fiio FH5. The Fearless S6 Rui just seemed to have more clarity, detail, and punch compared with everything else. Even within Fearless' own lower end models (4, 5T and 6Rui), listening to the S6 Rui felt like a thin veil had been removed over a guitar amplifier when compared with the S4 and S5T.
The DM6 and Fiio FH5 were close behind. And to be honest, given the price difference, those options could well be better for those on a slim budget. But even for a scrooge like me, I felt that the S6 Rui presented a better value proposition for the price. The quality was just quite stunning. In terms of speed of response, I think the S6 sits somewhere in between, which was very pleasant for someone like me who likes a wide range of music. House music had a ton of oomph and punchy lower mids. Yet, the balanced speed meant that slower Norah jones and adele tracks still preserved their "intimacy".
Someone else commented that there is room for improvement for soundstage in the S6 Rui - I agree. I've tried other iems that have a better soundstage, e.g. the Noble K10. But imho, to get that marginal increase in soundstage you would have to fork out a lot more money.
Someone else asked about HiSenior - I think their iems are ok. But that's about it. Nothing that I felt was worthy of sitting up and paying more attention to. Hence, I only spent about 5-10 minutes on those. Just didn't really spark anything for me.
Probably slightly off-track, but between the DM6 and Fiio FH5 - I'd actually pick the Fiio FH5. Sound wise they were both up there, and I think the Fiio FH5 sounded a bit more balanced to me, whereas the DM6 seemed to give a slight preference for mids and low end. My gripe with the DM6 was that the the uiem fit was horrible for me. My right ear is quite small, so the right ear piece kept falling out unprovoked. I'd encourage others to try out the DM6 in person before buying for that reason, especially if you have smaller ear canals like me.
The only problem right now is that, just when I thought I had settled on the S6 Rui, I read this thread and found out that there is gonna be an S6 pro.
I also didn't try the S8 options, and the reviews from others make it sound amazing. haha To top it all off, a BGVP distributor mentioned to me that BGVP is releasing a 6BA model by 1st week of April. So....... I am back to square 1. *Big sigh*
Also a question - since my main purpose for iems is for use as a stage monitor for live gigging as a vocalist and musician - is there anything I should look out for in particular as compared to choosing an iem for listening to soundtracks?
Thanks!