This review is terribly tardy, and I apologize to Todd and everyone else in advance for this…
Up until recently I had the Fostex Purplehearts in my inventory, and the Mojo is the only amp I’ve used thus far that drives them to their potential. The soundstage massively increased in all 3 dimensions, the low end had a texture and detail I hadn’t heard before, except on very expensive setups, and the midrange was simply perfect. Sadly, the Mojo is an ever so slightly sibilant amp for me (sibilance is something I’m very sensitive to begin with, so there’s a lot of hardware and headphones I don’t like because of that). The sibilance wasn’t horrendous, and it wasn’t forward, but there was enough of it to irritate my ears and somewhat limit my listening session length.
The BQEYZ Spring 1 paired fantastically well with the Mojo and sung like the spring chicken of a flagship IEM that it is. One of the things I love the most about the Spring 1 is that it is balanced in frequency response and the tonality is somewhat similar to my Focal bookshelf speakers; very natural and lively in character. The Mojo ran the Spring 1 quite nicely, with a smoothness in the presentation that reminded me of the utterly horrendous Dragonfly Cobalt (that was the one redeeming feature of the Cobalt, it was smooth and refined sounding).
Battery life was pretty dang good with the Poly, which is how I ran the Mojo for the majority of my time. I did run it off of USB from my PC, but honestly, unless you’re going to split hairs and you have a can that you know really well and is really revealing, you won’t be able to tell the difference between USB and wireless input.
The Poly was obviously built as an afterthought, and you simply have to have the case or else you will end up breaking the tabs that connect the two devices. Pairing on iOS was simple and sweet, and I was listening within minutes of opening the box up and going through the quick start guide.
A gripe I have with Chord is that the Mojo came with hardly anything in the way of accessories. A durable travel case should be standard on mobile products in this price range ($500+) and it’s absurd that you have to buy the Mojo+Poly case on top of the hardware itself. Sure, the case is really good quality and I commend Chord for that, but for Pete’s sake, if your streamer costs as much as my bloody truck payment, then you’d better damn well include the case for that price. Feature wise, the Poly is about 4 times overpriced. It really isn’t that hard to engineer and produce a good quality wireless streamer with SD card support. On that note, I did not test to SD card feature since I only use streaming services.
Would I buy the Mojo? Used only, and only for a max of $300. It’s long in the tooth now and Chord needs to either update the Mojo or lower the price to reflect the fact that it’s technically “obsolete.” The Poly like I said is grossly overpriced and should only be bought second-hand. Period. I do want to audition the Mojo again at some point for a longer period of time so I can run it with more cans and IEMs, but for now, I’m really happy I got to play with it and I’d give it a solid 3.8/5 stars.