What a great breakdown! The Crimson and Singularity were my two favorites from the most recent canjam socal. Well, that is considering that I'm not going to be buying a storm anytime soon . I ended up in the car at the end of the 2nd day, ready to drive home, and decided to go back in and buy a crimson before I left.I can try to provide some.
Crimson has a U-shaped tuning, and Singularity has a more L-shaped tuning.
Both sets have fantastic bass. The bass sounds more prominent in the frequency response for the Singularity, but it still somehow sounds balanced. A remarkable feat no doubt.
It's no secret that both sets have great bass, but they differ in how they achieve it.
The Singularity bass is bouncier, and has a longer decay. It has a very organic quality to it as well.
The Crimson bass has a more defined transient edge, is faster, and is tighter.
Both sets have good texturing. I think Crimson's bass has more of an authoritative slam when it engages but I could see people thinking it goes the other way.
Singularity and Crimson both have somewhat warmer mids. Crimson has better midrange resolution and better resolution overall, while I think Singularity has a better timbre. Singularity's mids are smooth, lush, and organic.
Both sets have well-extended treble responses. The Crimson's is more boosted in comparison. There's a peak somewhere in the Crimson's treble that can make it sound a little sizzly/tizzy on some chains. I've corrected this with ear tips. The end result is a decent treble response with good air.
Singularity's treble is smoother in comparison and is perceptibly free of any peaks. I'd consider it a safer treble response overall.
From a technicalities standpoint, Crimson is superior. It is noticeably more resolving and has a significantly larger soundstage. Its imaging is standout and I think it's slightly more dynamic as well. Singularity's techs are decent but not class-leading for its price.
Why pick Singularity then? I think there are still some reasons. I think Singularity is more musical, and it's the kind of set that you can put on and kick back to and listen to all day. It's the kind of set that makes me forget I'm listening to IEMs and puts the focus on the music. It's wonderfully coherent.
They're both great sets. It's hard to go wrong with Crimson or Singularity. I hope this helps.
Then I got home, couldn't get the singularity off my mind, and ordered one. Looks like they'll be battling it out for ear time. I'll have a chance to get really acclimated to the Crimson's sound signature before the Singularity arrives.
The best part is that the first listen when I was home with the Crimson was better than when I demo'd, and the demo had sold me. Really great iem. I've had some bad luck over the last week (computer died but I repaired it today) so I haven't had the chance to post my iem journey in the canjam socal thread, but it's coming.