I have a complicated relationship with the original H9. I borrowed one for a recording session about four years ago — the studio had a Max sitting on a shelf — and the Crystals algorithm did something to a sustained Jazzmaster chord that I'm still chasing. Reverse-pitched shimmer blooming up underneath the dry note, this slow upward smear that turned a single chord into a whole emotional event. I went home wanting one. And then I remembered the other half of the H9 experience: one knob, two footswitches, and an app you had to keep open on your phone to do anything that wasn't preset-recall. The sound was a ten. The thing you did with your hands to get there was a four.
So when Eventide announced the H9 Harmonizer Gen 2 this week — preorder now, $599, shipping globally June 24 — the spec that made me sit up wasn't the algorithm count. It was the screen.
What Gen 2 Actually Is
Let me be precise about the headline, because the marketing language is easy to misread. The Gen 2 expands the H9 to the full 74-algorithm library from the H90 — Eventide's current flagship. That's the complete set: the Harmonizers, the SpaceTime and Blackhole reverbs, the granular and Polyphony pitch engines, the vocal and synth-manipulation algorithms, the tape and BBD-flavored delays. Over 1,000 factory presets, and — this is the part that earns Eventide a lot of goodwill — it stays backward-compatible with your existing H9 patches. If you've spent years building a library inside the H9 app, it follows you forward.
The engine underneath is new, too: the same modern ARM-based processing platform as the H90, with updated converters and improved fidelity. So this isn't the old H9's DSP with a bigger preset list bolted on. It's genuinely H90 internals in a smaller box.
But here's the line you need to hold onto, because it's the whole story: it runs one algorithm at a time. The H90's signature trick is running two algorithms in parallel — series, split, stacked — with smart routing between them. The H9 Gen 2 does not do that. It is, very deliberately, half an H90. One algorithm, full quality, in a pedal a third the size.
That's not a knock. It's the entire point.
The Workflow Fix Is the Real Upgrade
The original H9's tragedy was that it hid a world-class effects engine behind the worst control surface in the category. One knob. You either memorized cryptic button combos or you tethered your phone to it and edited through the app, on stage, in a dark room, hoping the Bluetooth held. For a pedal whose magic lives in tweaking — in moving the pitch interval, riding the decay, morphing a reverb from a hint to a flood — that was a genuine creative tax.
Gen 2 fixes the thing that was actually broken:
- A real, larger display — visual feedback instead of guesswork.
- Three Quick Knobs plus a set of button pads — hands-on parameter control without the app.
- New Select, Bank, and Perform modes with dedicated buttons, so navigating a big preset library and performing with it are finally two different, deliberate workflows instead of one overloaded one.
This is the difference between a pedal you set up at home and a pedal you play. Eventide's effects were never the problem. The interface was. Gen 2 reads like the company finally admitting that and building the front panel the engine always deserved.
The Connectivity Is Grown-Up Now
The back panel — well, the side panels — also grew up in a way that matters if this is going anywhere near a modeler rig:
- Stereo in and out, switchable between instrument and line level. Line-level stereo is the spec that makes this play nicely in an effects loop or alongside a Helix/Quad Cortex/Fractal setup rather than just in front of an amp.
- USB-C for editing and updates — and, one assumes, a less fragile relationship with the editor than Bluetooth ever offered.
- 5-pin MIDI in and out for program changes and external control.
- Pre/Post and Wet/Dry routing, plus spillover between presets — your reverb tail and delay repeats carry across a patch change instead of getting guillotined. If you've ever heard a reverb get cut dead mid-swell when someone stomps to the next song, you know why spillover is not a footnote.
Where It Fits — and the Honest Question
At $599, the H9 Gen 2 sits right where the original Max lived, and right in the thick of the flagship-pedal conversation. It is not a budget buy. The question isn't "is it good" — it's Eventide's flagship algorithm library, of course it's good — the question is what it's for, and the answer is sharper than it looks.
If you already run a modeler, you have reverbs and delays and pitch effects in the box, and they're fine. What you usually don't have is the weird, beautiful, slightly-broken end of the spectrum — Crystals, MangledVerb, the granular textures, the genuinely strange pitch behavior — at the quality Eventide ships them. The H9 has always been the "one pedal that does the thing your modeler's stock blocks can't quite do" purchase. Gen 2 is that same proposition with a usable face on it and the full library behind it.
The honest caveat is the one I'd want answered before I preordered: is one algorithm at a time enough for how you actually play? A lot of the most gorgeous H90 patches are two algorithms doing something to each other — a pitch engine into a reverb, a delay feeding a modulator. If your favorite sound is a combination, the H9 Gen 2 will make you choose, or make you put a second time-based pedal next to it. If your favorite sound is one transcendent effect done perfectly — one shimmer, one impossible delay, one reverb that swallows the room — then this is the most pedalboard-friendly way Eventide has ever sold it to you, and the app is no longer a tax you pay to get there.
I borrowed an H90 for that Crystals sound and gave it back because the size and the price were more pedal than my board wanted. A $599 box that does one of those algorithms at a time, with three real knobs and a screen, that spills over cleanly between songs and sits at line level in a stereo rig — that's a much harder thing for me to hand back. The preorder window opens now; units ship June 24, and early preorders get a custom-artwork gift while they last. I'll be listening for honest stereo demos the second they appear.
Dig Deeper on Fader & Knob
- If you're weighing a flagship effects box against what's already in your rig, our BigSky MX vs. Meris MercuryX breakdown is the same kind of "what do you actually gain at the top of the market" question.
- Putting a stereo pedal like this in a modeler setup lives or dies on placement — start with the effects loop explained before you decide where it goes.
- New to why one transcendent time-based effect can carry a whole part? Looper, delay, and reverb signal chain order is the mental model that makes a pedal like this earn its board space.
