As with all the pedals from the Fundamentals series, the Walrus Audio Fundamental Delay has excellent value for money. I’d even argue this is the crown jewel of the whole series. You get pristine digital delay, warm analog repeats and shoegaze-y reverse delay in a single pedal, plus tap tempo and subdivisions. It strikes a balance between simplicity and versatility that most budget delays don’t bother attempting.
The Fundamental Delay is fully digital, and the Analog mode is a digital emulation of bucket-brigade characteristics rather than actual BBD circuitry. It sounds great regardless, and I’d have no complaints using it in place of a “real” analog delay on any gig.
The panel runs top to bottom: Time, Feedback, and Mix, all as horizontal faders. Below them sits the three-way Mode switch, and the bypass footswitch anchors the bottom. Simple and readable at a glance.
The Mode switch is the key to what this pedal can do. Position one is Digital, giving you clean, transparent repeats up to one second of delay time. Position two is Analog, filtering and slightly darkening the repeats to emulate bucket-brigade warmth. Position three is Reverse, flipping the delay trail for that backward-tape shimmer that shoegaze players love. Holding the bypass footswitch activates tap tempo, at which point the Mode switch shifts roles and selects tap divisions instead of algorithms: quarter note, dotted eighth, and eighth note.
In the demo above I’ve set up sweeps for the Feedback slider, the Modes switch, and a Tap Divisions sweep so you can hear exactly what each one does. The Feedback sweep runs in Analog mode, which is a good place to hear how the self-oscillation builds.
The three presets map the pedal’s personality. Digital runs feedback at 6.5 and mix at 4 for a clean, sit-in-the-mix repeat. Analog pushes the mix to 6 and feedback to 7, where the filtered repeats start to breathe and stack. Reverse dials the feedback back to 3 so the reversed trails don’t pile up into mud, letting each swelled echo resolve cleanly before the next one arrives.
The analog mode is where most players will spend their time. It doesn’t try to be a vintage BBD, but the filtering takes the hard edge off the repeats in a way that feels musical rather than just “darker.” Reverse is genuinely useful rather than a gimmick: at lower feedback settings it layers a shimmery, atmospheric texture behind the dry signal without taking over.
The BOSS DM-2w is the obvious cross-shop if you’re weighing analog warmth against versatility. The DM-2w is a Waza Craft recreation of the classic 1981 DM-2, built around actual bucket-brigade circuitry, so its analog repeats have a character and a physicality the Fundamental’s digital emulation doesn’t fully replicate. The DM-2w also adds a Custom mode with longer, slightly cleaner repeats, an expression pedal input, and a separate output for wet/dry rigs. It’s a focused, premium tool.
The Fundamental Delay goes wider. You get three genuinely different sounds (digital, analog, reverse) in one small box, plus the tap-tempo subdivision grid that the DM-2w lacks entirely. If your priority is the most authentic analog delay sound you can get, the DM-2w earns its place. If you want a single box that covers clean delays, warm repeats, and reverse textures with tap tempo, the Fundamental Delay does it all without requiring multiple pedals.
Beginners building their first pedalboard get a lot of mileage here: three distinct delay characters, tap tempo, and a straightforward fader layout that’s hard to dial in wrong. The reverse mode makes it especially useful for players who want shoegaze or ambient textures without a dedicated effects pedal.
Players who need strict rhythmic delay for live use will appreciate the tap tempo and subdivision options. It doesn’t do stereo, expression pedal control, or modulated repeats, so if those are requirements you’ll need to look further up the range. But for a single, giggable delay that punches well above what you’d expect from its position in the Fundamentals lineup, the Fundamental Delay is genuinely hard to beat.
Eight innovative pedals that transform your guitar into an ambient and experimental soundscape machine. From reverse delays and octave shifters ...
Discover budget-friendly guitar pedals that punch above their price point. From the classic BOSS DS-1 to the versatile Walrus Audio ...
Master the cinematic guitar tones of Explosions in the Sky, Godspeed You! Black Emperor, and This Will Destroy You with ...
More pedals, more fun 
Tone quest ends here 
Your tone deserves this Buy through these links and support Loopy Demos at no extra cost to you.
Get detailed specs on Walrus Audio's website
<div data-loopydemos="walrus-audio-fundamental-delay" data-title="Walrus Audio Fundamental Delay | Loopy Demos" data-width="400" data-height="610"></div>
<script src="https://loopydemos.com/embed.js" async></script>To embed this demo on your website, copy & paste the code above or customize your demo widget