You really should check Qudelix 5K. Friend bought it, I tested it for few days and they sounded amazing with Ether CX and especially Verite Closed! The balanced output has tons of power. I haven’t checked much of them but beats Mojo everytime, that he sent too. Didn’t AB them to other smaller gear but it was on par with Monolith THX AAA dacamp.
Have both, ES100 for year and a half now and BTR5 since early this year. The only reason I’ll take the Fiio over the ES is the power to drive more hard to drive earphones.
Bluetooth connection is better on ES ( is not bad on the Fiio, just not as good)
ES is smaller and easy to clip on your shirt.
And the most importan, all the software part is a pleasure on the ES vs a pain on BTR5.
I only use both for IEM .
I do not have experience with 5K, but between ES100 and BTR5, I would choose ES100 especially for EQing. EQ app with ES100 worked more stably without any surprises. One surprise I experienced with BTR5 is that it does not support EQing over LDAC.
I’ve been using an Es100 for the last 18 months and very happy with it… I did just pick up the 5K, essentially a Gen 2 es100 as it is the same designer, but haven’t done comparisons yet.
Runs ldac great and very happy with sound for portable use with Meze 99s, which I run balanced - which to me represents slightly better imaging and staging
. Funny how ‘spending freeze’ means something different applied to our gear and our music!
I will likely be doing some comparisons this weekend - and then my zmf VO arrives on Tuesday, so I will endeavor to provide some impressions of that as well…