Thank you, great review. I paired it with the best copper cable I could afford and love its sound.
I almost only listen to acoustic jazz and with 1-2-3 switches on those spaced and airy highs with balanced realistic BA bass are great pleasures for me.

TSMR-6 has been a test be for cables that I have been reviewing. 6 with a good copper cable and it is so damn good. Lol. Love these things.

Tansio Mirai should start putting real treble BA drivers into his IEMs. Knowles 29689 isn't the most natural-sounding choice realy.

I have the TSMR 4 pro. which i'm generally very happy with & I use it with the fiio m11 pro. I just wondered would there be a big difference in sound quality between the pro 4 & the TSMR 6 & also would it make a good match with the fiio m11 pro player?.

TSMR-6 is an nice upgrade from the 4 pros but with one caveat. It does require a different cable as the stock cable makes the TSMR-6 more brighter than it has to be. I love using copper cables on my TSMR-6 as it corrects the tonality of the TSMR-6 and sounds way better. Funny thing is the stock cable that came with the TSMR-6 would go with the TSMR-4 pro better.

Thanks for your reply, very useful advise !!. Which copper cable would you recommend , that's not overly expensive ?.