Klowra Sprout Modulator Review: One Pedal, Infinite Vibes
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What happens when boutique brains meet botanical branding? You get the Sprout.
The Klowra Sprout Modulation Pedal is the debut modulation effect in a brand-new line of boutique pedals from Klowra—a company stepping into the stompbox world with some seriously fresh ideas. Don’t let the pastel green enclosure and adorable plant logo fool you—this thing is a serious modulation powerhouse. Think lush chorus, throbbing trem, tape warble, and alien flanger—all tucked inside a compact pedal that feels like it was made by a synth geek and a shoegaze guitarist in a garage somewhere in Portland.
It’s vibey, it’s weird, it’s warm—and if you’re not careful, you’ll end up writing an entire ambient EP before dinner.
What Is the Sprout?
The Sprout is a fully analog/digital hybrid modulation pedal that blends classic sounds with deep tweakability. Klowra isn’t trying to clone vintage boxes here—they’re reimagining modulation for the modern pedalboard, and Sprout marks the first bloom in their effects lineup.
Inside the Sprout, you’ll find:
3 core modes: Chorus, Tremolo, and Flanger
A secret 4th mode: “Grow” — a randomized modulation engine that evolves over time
CV/expression input for synth integration or external control
Tap tempo (thank you, finally)
Stereo out for wide, lush tones
Sound: From Shimmer to Swamp
Let’s be clear—this isn’t your dad’s CE-2. The Sprout takes traditional modulation tones and pushes them into spacey, textural territory.
Chorus mode has a dreamy, detuned feel with a stereo spread that makes mono reverbs jealous.
Tremolo is choppy and rhythmic when you want it, but can turn into smooth pulses with the Shape knob.
Flanger mode brings jet-plane swoosh with a touch of analog warmth—never sterile.
Grow mode? It’s alive. It’s unpredictable. It modulates everything in generative, evolving patterns that feel more synth than stompbox.
You can go from subtle shimmer to full-on seasick in seconds. It loves to live after a fuzz or before a reverb.
Controls Overview
The Sprout doesn’t overwhelm, but it does reward exploration:
Rate – Speed of the modulation
Depth – Intensity of the effect
Shape – Waveform selector (sine, triangle, square, random)
Mix – From dry to full wet signal
Mode switch – Cycle between Chorus, Trem, Flange, and Grow
Hold Footswitch – Momentary warp for rate and depth (can be mapped)
It’s super intuitive—but spend 20 minutes with Grow mode and you’ll realize this pedal goes way deeper than you expect.
Who’s It For?
If you’re a straight-into-the-amp player who wants a little chorus on the clean channel, this might be overkill.
But if you’re:
Layering textures in a post-rock mix
Building ambient soundscapes with a loop station
Turning your guitar into a synth pad
Modulating external gear with expression or CV
…then the Sprout might be your new secret weapon.
Sprout vs The Modulation World
| Pedal | Mod Types | Expression Support | Random Modulation | Stereo Out |
|---|---|---|---|---|
| Klowra Sprout | 4 (with random) | Yes | Yes (Grow Mode) | Yes |
| Walrus Julianna | 2 | Yes | LFO Drift | Yes |
| Chase Bliss Warped Vinyl | 2+ | Yes (deep) | Kind of | Yes |
| Boss CE-2W | 1.5 | No | Nope | Mono |
What to Pair It With
The Sprout plays well with others, but it shines when surrounded by creative gear:
Strymon Nightsky or BigSky – Stack reverb after Grow mode for dreamy, ever-changing trails
Meris Polymoon – Use Sprout before for modulation into delay chaos
EarthQuaker Devices Afterneath – The combo of random modulation and reverb diffusion is ambient gold
Any mono synth – Route through the Sprout to give sterile waveforms organic movement
Final Verdict: Should You Plant One?
The Klowra Sprout is one of those pedals that encourages exploration and makes you want to play more. As the first in Klowra’s pedal lineup, it sets a high bar: inventive, musical, and not afraid to get weird.
Whether you’re a bedroom producer, a shoegaze dreamer, or just modulation-curious, the Sprout delivers modern modulation with attitude and atmosphere.
TastyJam Verdict: 8.7/10
Grow your sound. Sprout’s got the soil.