Preamble: I am a grateful participant in the Fiio F9 Pro review tour. So thank you Fiio for providing this opportunity to us head-fiers. Your engagement with the community is outstanding! The review unit was not a “keeper” but had to be shipped on to the next reviewer. I am, however, eligible for a discount on my next Fiio purchase because I pledged to write a review. Fiio insists on honesty, and that’s what you and they will encounter with the below. I hate to even have to say it, but sound impressions are subjective - and so this review...

While this is review is in pro-con form only, it is still a very detailed gathering of impressions. It's also necessary to read my preamble to understand why I'm nitpicking these IEMs. I hope my impressions will be helpful for those looking to get into the high end IEM game. Listening Conditions This is my first expensive IEM and I'm floored by its performance. I'm not a big fan of soundstage, but am beginning to appreciate it more, as I dive deeper into the music. I'm more concerned with imaging and instrument placement in the stage, not...

I had the Modi 2 Uber and the Multibit side by side for a couple days hooked up to my Asgard2 feeding Hifiman HE400i cans. I use a Mac running Audirvana+ in Integer Mode and stream 44.1 FLAC from Tidal. I don't upsample/oversample and I don't dither unless I use the software volume (which is like never). After warming both of the DACs up for 24 hrs and comparing them, I could hear a sweetness to the treble (less splashy and "digital") in the Multibit, along with a fuller mid section and rounder bass. The difference between the two was more...