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Availability:
Only 8 left in stock, order soon!
Arrives
Wednesday, Mar 18
Recently Viewed
Style: Chorus
Features
- Controls: Rate, Depth, Mix
- Modes: Light, Medium, Heavy
- Power Requirements: 100mA minimum
Description
For the Fundamental Series, we challenged ourselves to design a set of pedals with the tonal integrity that’s required to live on a professional’s pedalboard, but with simplified controls friendly enough for even the newest effect pedal users. Each Fundamental pedal includes 3 sliders for tweaking the sound, plus a three-way switch for changing pedal modes. The result is a line of 8 pedals that will keep you covered from your first band practice all the way to a sold-out arena. Designed and assembled at Walrus Audio headquarters in OKC, OK.
Brand: Walrus Audio
Style: Chorus
Color: Black and White
Item Weight: 237 Grams
Voltage: 9 Volts
Item Weight: 8.4 ounces
Product Dimensions: 5.55 x 4.5 x 2.85 inches
Item model number: 900-1072
Is Discontinued By Manufacturer: No
Date First Available: February 23, 2023
Color Name: Black and White
Hardware Interface: 1/4-inch Audio
Signal Format: Analog, Digital
Power Source: Corded Electric
Voltage: 9 Volts
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Mar 18
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: Fuzz
I recently bought the Wampler Fundamental Fuzz, excited by the (relatively) affordable price tag and unique control layout. All-in-all, I find it to be a versatile fuzz, with one slight caveat related to the "Gate" mode. BUILD QUALITY/ENCLOSURE: All of the pedals in the new "Fundamental" series share the same build: a sturdy metal box (similar to a compact MXR pedal in size) with three horizontal sliders (!) instead of knobs, a 3-way mod switch, and a soft press bypass switch. It's solidly-built and the sliders felt nicer and more durable than I expected. It is a weird experience at first making adjustments on a linear slider versus a rotary knob, but not in a way that impairs your ability to dial (slide?) in your tone. Strangely, the sliders have a center (50%) notch position, though I guess this is just a tactile equivalent of "setting everything to noon". In terms of longevity, however, I'm definitely going to have to be more careful with storing the pedal. Rotary knobs on a potentiometer shaft aren't invincible, either, but I do feel like the sliders would be more likely to bend or break if other things were thrown on top of the pedal or rammed into it. SOUND QUALITY & MODES: The "Classic" mode is thick and chunky, and it's just an excellent all-around fuzz for chord/rhythm work. It's actually Muff-like, which was a pleasant surprise. There's a nice bassy presence to it, but the Tone knob also allows you to open it up a bit. The "Mid+" mode sounds like basically the same fuzz circuit, but with a dramatic EQ shift that puts it forward in the mix. Volume doesn't go up dramatically between Classic and Mid+, but the latter is going to be perceived as louder because you're pushing those mid frequencies. Both modes excel for both rhythm work and single note leads, and there's a ton of saturated gain on tap. There was a great demo of this video done by The Studio Rats that "sold" me on the pedal, and the guy there got an almost "Eric Johnson" solo tone using one of these modes on a lower tone setting. So, at $99, I think we're already worth the price of admission on those two modes, alone. It doesn't really clean up with the guitar volume knob, though, even with single coils. The "Gate" mode, IMO, is disappointing. I'm not a fuzz expert, but I have played several fuzzes that either feature velcro/gating, or can be set to achieve that effect. These include the DOD Carcosa, EQD Dirt Transmitter, and (recently) the Fender Hammertone Fuzz. All of those do that splatty, gated fuzz effect in a more musical manner than the Gate mode on the Fundamental Fuzz. Walrus acknowledges in their instruction card that there is a volume drop in Gate mode, but it really is quite an extreme volume drop. But the bigger issue I had is that there is no Bias control (and changing the Gain doesn't seem to affect things much). So I was finding that entire notes were disappearing unless you hit them VERY hard, and this was with both single coils and humbuckers. Yes, you can set up a Carcosa or other gated fuzz to behave in the same way, but there's a gray area between "niche musicality" and "unplayable noisemaker", and the Walrus just drifted closer to the latter on Gate mode, in my experience. That issue, aside, the other two fuzz modes are great, and the tone control is excellent! It feels like there's more than just a treble roll-off going on there. The character of the fuzz also changes on lower-half versus upper-half settings, and I could imagine dialing it into a wide variety of amps. It's a great all-around fuzz that doesn't necessarily reinvent the wheel, but may offer a different flavor of that doomy, saturated fuzz sound you know from other classic pedals.
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Reviewed in the United States on May 22, 2023 by StormJH1
Style: Reverb
Plenty of options to shape your tone. Sound quality is right there with other pedals 3X the price. The budget friendly price does not mean you’re sacrificing ANY TONE. Great little company, making great quality pedals. Discover them before they get huge!
Reviewed in the United States on January 20, 2026 by Anthony Marchetti
Style: Reverb
Awesome pedal. I couldn’t be happier with the quality and the sound of this pedal. I will be looking into other pedals from this company.
Reviewed in the United States on December 29, 2025 by Justin
Style: Ambient
This thing is so cool. I was looking for a pedal that does ambient "whale" sounds without spending hundreds of dollars on complex pedals. This thing does the ethereal, roomy, moody ambient thing very well and is simple to use. The different modes have distinct voicings, and the sliders are responsive and intuitive. You can get cool sounds very easily. I'm super pleased with this! If you haven't watched the walrus audio demo video on YouTube, that gives a very realistic idea of what you'll be able to achieve with this thing.
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Reviewed in the United States on June 24, 2025 by thiscaristooslow
Style: Delay
Sounds decent
Reviewed in the United States on July 15, 2025 by Scott arendt
Style: Ambient
Love this pedal! Great value at this price! Really nice reverb pedal with so much depth and clarity. Some reverb pedals get really messy and become undefined but not this one.
Reviewed in the United States on December 27, 2025 by MJ
Style: Tremolo
Simple and sounds great.
Reviewed in the United States on December 27, 2025 by Jeffrey
Style: Tremolo
Very impressed. This is such a great, simple trem. Easily on par with a Boss TR-2 and more versatile.
Reviewed in the United States on December 31, 2025 by Bryan