JHS 3 Series Pherb

JHS 3 Series Pherb

The JHS Facebook fan page, our comment sections everywhere, our Discord and our inbox have all been overtaken by the same cry of desperation: JOSH! BUILD A JHS FLERB!

But I refuse.

You asked us for Flerb. You're getting PHERB.

A dark, moody lo-fi reverb running into a four-stage phase shifter. Both on, all the time.

BREAK mode takes the whole signal — reverb, phaser and your dry guitar — and destroys it.

Decided, designed, prototyped and approved for production in just 35 hours. The fastest pedal we have ever made. Probably the most fun one as well.

PHERB > FLERB

I love the Holy Grail reverb — it's legendary, but the Flerb setting is a monstrosity. I wrote a 500-plus page book on the history of Electro-Harmonix out of pure love for the company, so this is no slam on them. Flanger inside of a reverb just makes my skin itch. Phaser inside of a reverb however, is a different story, and that's the one nobody ever built. So I'm giving you the thing that should have been and never was.

PHERB is Phaser + Reverb, built from the ground up, in house, in October 2026, by way of a manic 35-hour push of engineering and panic. That isn't a marketing number — it's the fastest anything at JHS has ever gone from a decision to a finished, approved prototype, and the old record holder, the Twin 12, wasn't really close.

The reverb is dark, moody and lo-fi on purpose. Not a plate. Not a hall. Not a room anybody measured. It's chorused and chunky, and at longer decay times it slightly pulses.

The phaser is a four-stage vintage style phase shifter (think Phase 90) with the feedback left off and the notch sweeps moved up through the frequency spectrum, so they stay out of the way of the reverb's low mids. You still get the swish. It just doesn't swallow everything underneath it. Speed covers 0.05 Hz to 5 Hz, from barely moving to seasick.