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Walrus Audio

Walrus Audio Fundamental Series Ambient

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$99.99

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Pickup available at 2520 W Main St

Usually ready in 24 hours

14-day returns

Changed your mind? Return it undamaged within 14 days.

Fully insured shipping

Ships from Rapid City, SD. Free on orders over $100.

11,000+ five-star reviews on Reverb

Trusted by players nationwide since 1963.

Ships same or next day

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This new Walrus reverb will ship insured and inspected from our Rapid City, SD location.

Buy risk free with our 14 day - full refund, less shipping, return policy.  Check out our shop policies for more details. 

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 has three faders for tweaking the sound and a three-way switch for changing pedal modes. The result is a line of 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. 

Features/Specs

The Fundamental Ambient provides three different atmospheric reverb algorithms to explore beautifully vast and lush soundscapes with plenty of decay time for pillowy soft pad-like decay.

  • Decay: Control the amount of reverb decay time. Left is the minimum and right is the maximum amount of time.
  • Tone: Shapes the overall tonality of the reverb. On Deep and Lush this controls the cutoff of a synth-style lowpass filter. On Haze this controls the width of a resonant bandpass filter, filtering both high and low end at the right, and allowing more high and low to pass through at the left.
  • Mix: Control the mix of the effect and the original clean signal. All the way to the left outputs only the fully clean signal, and all the way to the right outputs only the affected Reverb signal. 

Slide Switch – The slide switch allows you to change between three distinct Reverb algorithms.

Deep – A dark ambient reverb with an added low octave, perfect for creating        murky, cavernous sustain or adding a touch of moody atmosphere.

Lush – A breathy, expansive reverb featuring ultra-long sustain. Perfect for generating silky pads and immersive soundscapes with every note.

Haze – A textured, lo-fi reverb featuring distortion, sample rate reduction, and a resonant bandpass tone control, great for vintage or experimental tones.

Trails Modes – The Reverb comes with trails mode active by default, to disengage trails mode hold down the bypass stomp switch when applying power to the pedal. Once the LED flashes it indicates that trails mode is turned off. To re-engage trails mode, repeat the process, and wait for the LED to turn dark, indicating that trails mode is back on. With trails mode active, your reverb decay will fade off naturally after turning the pedal off. With trails mode inactive, the decay abruptly cuts off when you turn off the pedal.

AMBIENT

Customer reviews

11,000+ Five-Star Reviews On Reverb

What players say after the guitar arrives

“The guitar was well packed and is set up to my liking! I would definitely do business with this company again!”

Gerald K. – Jun 4th, 2026Reverb
Gibson ES-330

“This is a beautiful guitar…appreciate the free setup and quick ship! Would purchase from this seller again…THANKS!”

Guitar D. – Jun 4th, 2026Reverb
Yamaha RSS02T

“Thank you too for a wonderful experience and an amazing guitar. I appreciate the quick shipment and great customer service.”

Eddie R. – Jun 4th, 2026Reverb
Epiphone 1957 SJ-200

“Very fast shipping, arrived in perfect condition, extremely well set up, no adjustments needed at all! Plays and looks great, exactly as advertised.”

Duncan K. – Jun 3rd, 2026Reverb
PRS SE CE 24

“Fast shipping, and great communication from the seller. Pedal arrived quickly and was packaged really well. Would not hesitate to buy again.”

Mark G. – Jun 3rd, 2026Reverb
JHS The Clover Preamp

Very well packed! Would be happy to do business again! Thanks!

Mark B. – Jun 2nd, 2026Reverb
Stevens Steel Lap Steel Bar

“Another masterpiece from Taylor. Great service and communication from Haggerty’s crew. Thanks!!!”

James S. – Jun 2nd, 2026Reverb
Taylor Custom Shop C14ce

“Beautiful guitar, easy txn! Thank you so much! Looking forward to playing this guitar far into the future.”

Josh H. – May 31st, 2026Reverb
Powers Electric A-Type FF42

“Fast shipping, great pedal. Buy with confidence these guys are great to work with!”

Carter M. – May 30th, 2026Reverb
Ibanez TS-9

“Great shop! Awesome price, super fast shipping, and great packaging of an awesome new pedal! Thanks!”

Craig C. – May 30th, 2026Reverb
JHS 3 Series

Frequently Asked Questions

Do you set up every guitar before it ships?

Yes. Every guitar that leaves our store has been professionally inspected, set up, and signed off by the technician who worked on it. You will find a signed checklist inside the box when your order arrives.

How accurate are your condition descriptions?

We treat condition grading as a contractual promise, not an approximation. When we list something as excellent, that reflects a specific, consistent standard we apply across every instrument. We encourage you to call us before purchasing if you want a detailed in-hand description of any specific guitar.

Can I call and speak to someone about a guitar before I buy?

Yes, and we encourage it. Our team are working musicians, not order-takers. Call us at 605-348-6737 and ask about any instrument in our inventory. We will physically pull it off the wall and describe it to you in detail.

What is your return policy?

We offer a 14-day return policy if you change your mind and the item is returned undamaged. You are responsible for return shipping costs.

Do you offer financing?

Yes. Financing options are available at checkout. Monthly payment options are designed to make high-ticket purchases more accessible without requiring full payment upfront.

How do you ship instruments?

Every instrument ships fully insured from our store in Rapid City, South Dakota. We offer free shipping on all website orders over $100. Guitars are packaged to survive transit, properly cased, braced, and protected.

Are you an authorized dealer?

Yes. We are an authorized dealer for Taylor, Martin, Gibson, Fender, and many other brands. We are currently the number one independent Taylor Guitars dealer in the world, an award we have received two years running for 2024 and 2025. We are also a Top 10 premium dealer for Martin, Gibson, and Fender.

Do you sell on Reverb and Amazon as well as your own site?

Yes. We are one of the top 15 resellers globally on Reverb, where we have accumulated over 11,000 five-star reviews. We are also one of the only independent premium dealers in the world authorized to sell Taylor and Martin on Amazon.

How long have you been in business?

Haggerty's Music has been open since 1963. Our store is located at 515 Mount Rushmore Road, Rapid City, South Dakota.

Do you offer instrument repair?

Yes. Our certified technicians handle everything from routine setups to full restorations across fretted, orchestral, and band instruments. Our team holds certifications from Taylor Guitars, Yamaha, and other leading brands. Learn more HERE.

What brands do you carry?

Our core guitar brands include Taylor, Martin, Gibson, Fender, PRS, Epiphone, Suhr, Eastman, Gretsch, Luxxtone, Novo, Jackson, Charvel, Legator, and Yamaha among others. These are also the most searched brands on our site, so each has a dedicated collection page.

Do you offer music lessons?

Yes. We offer music lessons. You can find out more HERE.