Back in the day, guitarists combined multiple pedals in nightmarishly long signal chains to achieve ambient tones. With the Fundamental Ambient reverb pedal from Walrus Audio, those days are over! This savvy soundscape stompbox shrinks the power of multiple spatial effects into one compact device, complete with three reverb algorithms for soundscapes, atmospherics, and sustained washes of sound. Three modes — Deep, Lush, and Haze — provide options ranging from transparent studio hi-fi to lo-fi grit. To ensure you can find the right ambient tone for any occasion, the pedal's three slider controls (Mix, Decay, and Tone) behave differently in each mode. With the Walrus Audio Fundamental Ambient from Sweetwater, you can lose yourself in ambience while preserving valuable pedalboard real estate!
This pedal equips you with three highly customizable modes — the Lush and Haze modes even offer conventional reverb tones with Mix and Decay kept at lower settings! No matter which mode catches your attention, hardlining the Mix control is a ticket to cavernous realms packed with texture and feel. With the Slide Switch set to Haze, the tone slider controls a resonant bandpass filter's highs and lows, offering distinct lo-fi flair ranging from vintage AM radio crackle to experimental zest.


Walrus Audio lets you determine how the Fundamental Ambient behaves when the active pedal is bypassed. You can opt for trails that decay naturally after a press of the footswitch, or you can select no trails for an instantaneous cutoff — perfect for dramatic transitions! What's more, players typically must remove a pedal's back plate to access such functions, but Walrus makes the task simple! A long press of the Ambient's footswitch is all it takes to change trail modes, which unlocks more ways to deploy the Ambient Reverb onstage as part of your set.
We’re all about sleek pedal designs here at Sweetwater, and the Walrus Audio Fundamental Series has certainly caught our eye. These pedals blow streamlined functionality out of the water. For anyone from gigging pros to pedal newbies, the Fundamental Series offers hearty tonal integrity without complicated controls. You get three sliders and a 3-way switch for each pedal. Through these simple yet effective controls, you can tweak your sound without a hitch and change pedal modes in the blink of an eye. The Fundamental Series brandishes an arsenal of pedals ready to nail your desired tone with ease. Grab one for your pedalboard today!

| Specification | Detail |
|---|---|
| Pedal Type | Ambient Reverb |
| Analog/Digital | Digital |
| Effects | Deep, Lush, Haze |
| Inputs | 1 x 1/4" |
| Outputs | 1 x 1/4" |
| Bypass Switching | Buffered, Trails Mode |
| Power Source | 9V DC power supply (sold separately) |
| Power Usage | 100mA minimum |
| Height | 2.25" |
| Width | 2.375" |
| Depth | 4.75" |
| Weight | 0.5 lbs. |
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