Great ambient reverb with a hugely disappointing flaw

First things first, all three reverb modes are incredibly beautiful and (you guessed) dreamy. The modulation settings and parameters make this a deceptively complex pedal and also take it from being a very nice sounding one trick pony ambient pedal to a very weird and “out there” pedal with a lot of character.

As much as I love this pedal, it has a deal breaking flaw. Regardless of whether you set it as buffered or true bypass, the pedal will add background noise, and a lot of it. I go to great lengths to make my board as quiet as possible so this was an instant dealbreaker. Walrus says this is due to the internal chip used (FV-1) so this has nothing to do with amp, cable or pickups used. Overall, a sad turn of events and an issue that I do not see often brought up for an otherwise excellent ambient reverb.

Stratosphére et rêveries

Reverbe modulée (si on veut) qui emporte très loin dans les effets de nappes notamment, et qui pousse vraiment à la créativité! Modulable d'ailleurs avec une pédale d'expression (pour peut qu'on modifie à l'instérieur) ^{^}

From Gear Setup

Get it - then upvote me for recommending it

It's awesome, simply put. I think of this more as a reverb accentuator, creting dreamy sounds that spark creatvity. The sustain feature is pretty cool too.

From Gear Setup

An Ambient Masterwork

Walrus Audio have an uncanny ability when it comes to reverb. Other companies make stellar reverbs, of course, and not everyone is after outrageous, ambient sounds. But that is most certainly what I'm after, and from the Descent to the Fathom to the newer Slo, Walrus delivers in a way that makes me feel a little cold towards other manufacturers. The Fathom can be used for some fairly basic sounds & makes a great workhorse in that sense, but the Slo dives right into the deep end, and all the better for it. Endless ambient possibilities lay before you inside of this pedal, and I've thoroughly enjoyed exploring them all.

Fantastic pedal, ambient dream machine

This pedal has become an integral part of my songwriting process, and has been a cornerstone of "my sound".

Amazing characterful reverb, excellent for enormous atmospheric sound beds

Huge (and I mean HUGE) modulated reverb, capable of sustain and reverse effects and it has a really "noir" dark-mode.

Too bad it's not stereo, I think this is fine for guitars ( I do not have a stereo rig) , but I also use it for synths. Maybe I need two...

Absolutely phenomenal

My favorite reverb. I also love the Afterneath but the Slö is just so beautiful. I keep it on as often as possible

Post Rock In A Box!

If you’re a fan of super ambient/textured bands like Sigur Rós, Slowdive, Daughter, This Will Destroy You, Explosions In The Sky, etc. this pedal is for you! It’s literally “post rock in a box” and is really geared towards anyone looking to add an a ambient reverb. It’s easy to use and sounds amazing! Just check out the YouTube demos and you won’t be disappointed.

Would buy again, but with presets

I'm as close as I can be to loving this pedal if only it had presets. Would buy again for this feature. Overkill for a subtle reverb.

From Gear Setup

Great Ambient Reverb

I love the pedal, particularly the dark mode with the sub octave and the infinite latch in the dream mode.

Preferred Settings + Usage:

From Gear Setup