Truth Ear Zero Blue 2 – How It Stacks Up Against the Competition

 After spending some real time with the Truth Ear Zero Blue 2, I’ve got a few thoughts—especially when comparing it to other IEMs in the same price range. Here’s how it holds up against some of the key players:

Truth Ear Zero Blue (Original)

I’ll be honest—while the Blue 2 brings more detail to the table, I still prefer the original Zero. Its overall tonality is just more cohesive and listenable, especially in the treble region. The Blue 2 tries to push clarity, but ends up feeling harsh, even with foam tips. If you’re treble-sensitive like me, the OG Zero is a safer bet.

Zero Red (with 10-ohm adapter)

This is hands down the better version of what the Blue 2 couldhave been. With the 10-ohm impedance adapter, the Red becomes more refined, taming that harsh top end and delivering a much smoother listen. It still carries the energy and detail, but without fatiguing the ears. For the price, it’s a clear upgrade over the Blue 2.

Moon Drop May

Now this one surprised me. The May offers a warmer, more balanced tuning. The lower mids are fuller, which gives vocals and instruments more body. The treble is present but not overblown. Compared to the Blue 2, the May feels more natural and less clinical—definitely a better all-rounder if you want something musical and fatigue-free.

7Hz Timeless

Yes, it’s a step up in price, but the difference is absolutely worth it. The Timeless offers multiple tuning options, a hard carrying case, and just a more refined experience from top to bottom. The tuning feels more mature, the detail is exceptional, and the harshness that plagues the Blue 2 simply isn’t there. If you can stretch your budget, this one’s hard to beat.

Final Take

The Zero Blue 2 isn’t a bad IEM, but it’s also not an easy one to recommend—especially when you consider what else is out there. The harsh treble kills the vibe for me, even though the detail and bass are solid. If I had to choose, I’d reach for the Zero Red or Moon Drop May without hesitation. And if budget allows, the 7Hz Timeless is a no-brainer.