Earthquaker Avalanche Run V2 - Reverb Delay Stereo

A Modern Classic from EarthQuaker Devices

The Avalanche Run has established itself as a "large space" reference at EarthQuaker Devices: a comprehensive ambient pedal combining a rich delay (capable of evoking tape echo colors or more "analog" BBD-style textures via the tone control) and a lush, expansive reverb. It carries the spirit of depth and modulation that has charmed fans of some of the brand's reverbs, here with a broader, stereo approach tailored for exploration.

Who Is It For, and In Which Styles?

This pedal is aimed at guitarists (and more broadly instrumentalists) who want to build soundscapes without multiplying pedals: indie, post-rock, ambient, shoegaze, modern pop, alternative rock, but also blues and rock whenever a musical echo and a "breathing" reverb are sought. Its Tap Tempo and subdivisions make it a very reliable tool in a band setting, while its Reverse and Swell modes open the door to pads, cinematic intros, and inspired transitions.

On a pedalboard, the Avalanche Run excels at the end of the chain (after distortions) to preserve clarity, or in an amplifier effects loop if you're looking for a more "studio" sound. In stereo configuration, it becomes a true sound image engine: ideal with two amps, a two-input audio interface, or a wet/dry setup.

Controls, Modes, and Connectivity: A Pedal Designed to Play

The delay section offers four main controls: Time (0 to just under 2000 ms), Repetitions (from a few repeats to almost infinite), Tone (wide color range, from darker echo to brighter, with a more neutral zone in the center), and D Mix (delay mix, up to fully wet depending on setting). The Tap Tempo is complemented by a ratio selector to choose the rhythmic subdivision (quarter note, dotted eighth, triplets, sixteenth notes, etc.).

The reverb section features a Decay (from short to very cavernous) and an R Mix to place the reverb in your sound, from simple depth to a enveloping pad. A 3-position toggle gives access to Normal, Reverse (reverse delay with standard reverb), and Swell (volume swell effect for faded attacks and "rising" chords) modes.

Practically, the bypass is switchable between true bypass and buffered bypass with trails management (multiple tail lengths, including a "sound on sound" looping mode). The 6.35mm TRS expression input is assignable: you can assign it to a control (Decay, reverb mix, Time, Repetitions, delay mix) or even the toggle, allowing you to change the mode progressively with your foot.

The connectivity allows for mono use (left input and output), stereo use (left and right inputs/outputs), or mono in / stereo out (left input, left and right outputs). Routing tip: by inputting through the right and outputting in stereo, you can get a very "wet"-oriented left channel and a more mixed right channel, handy for spectacular stereo effects on stage or in recording.

The Sound

The Avalanche Run stands out with an immediate sense of depth: the delay maintains clarity, with a tone capable of shifting from a soft, muffled echo to more present repeats, while the reverb delivers a generous "plate" breadth with subtle modulation. The dynamics remain pleasant and musical, with a very inspiring response for open chord playing, singing lead lines, or picking textures. In stereo, the image naturally widens and gives a sense of movement, perfect for thickening a clean tone without weighing it down.

Technical specifications

Effects	Reverb, Delay	Type	sector
Technology	Analog & Digital	Use	electric guitar
Format	Pedal	Color	Blue

A/D and D/A converters	24-bit / 96 kHz	Switchable bypass	true bypass or buffered bypass
Dry signal path	fully analog	Trails	5 tail lengths (including a "sound on sound" looping mode)
Wet signal path	fully digital	Flexi-Switch technology	latching (on/off) or momentary (active while footswitch is held) mode
Frequency response (wet signal)	20 Hz to 20 kHz	Relay switching	requires power to pass the signal
Signal-to-noise ratio	115 dB (typical)	Dimensions	118 x 105 x 57 mm (including knobs)
Input impedance	1 Megaohm	Required voltage	9V DC center-negative
Output impedance	100 ohms	Consumption	410 mA
Delay time	0 ms to just under 2000 ms	Recommended power supply	1 A (for best results)
Modes via 3-position toggle	Normal, Reverse, Swell