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Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal , $339.99 - Add to Cart Skip to Product Information

Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal

Amp and Cab Simulator Guitar Effects Pedal with 6 Amp Models, 12 Cab IRs, 3 Reverbs, Boost, Noise Gate, Menu Screen, Stereo I/O, MIDI I/O, and 128 Presets
Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal
Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal
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Purchase this item at Sweetwater, and get $110.00 off! The price shown reflects your savings. Effective now through 9/8/2026.
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Purchase this item at Sweetwater and receive a free Eminence IR Sampler Pack ! Your free IR pack will be delivered via email. Effective now through 6/13/27.
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Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal
In Stock!

Only 6 left in stock! More on the way.
Instant Savings: $110.00

Transforms Your Pedalboard Into a Full-blown Guitar Rig

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Equipped with true-to-life amp models, pro-designed cab IRs, and truckloads of performance-ready features, the Walrus Audio Mako MKII ACS1 packs a full-fledged guitar rig into a compact, easy-to-use stompbox. The MKII ACS1 contains Fender-style cleans, Marshall-flavored crunch, and Vox-flavored chime, plus three additional high-gain models, putting a total of six fan-favorite sonic flavors at your feet. Its 12 cabinet IRs were meticulously crafted by seasoned studio professionals to best complement their associated amp models, and you can load your own IRs as well. You also get amp-like EQ and Gain controls, along with three studio-quality reverbs. The MKII ACS1’s intuitive controls, which are supported by a well-placed menu screen, make navigating this pedal a piece of cake. You also get stereo I/O, MIDI support, and 128 onboard presets for straightforward integration into complex guitar rigs. Players searching for a pedalboard-centric way to go direct with their guitar tone will revel in the potent all-in-one performance of the Walrus Audio Mako MKII ACS1 pedal.

Six iconic amplifier models

The MKII ACS1 leverages six amplifier models to provide you with an expansive tonal palette. Its three vintage models include the Deluxe Reverb-inspired Fullerton, the Bluesbreaker-inspired London, and the AC30-inspired Dartford. High-gain enthusiasts will appreciate the MKII ACS1’s modern offerings, which include the 5150-inspired Red, the Rockerverb-inspired Citrus, and the Dual Rec-inspired Tread. You can mix and match stereo amp combinations — with zero phase issues — by placing different models in the left and right channels. The MKII ACS1 includes amp-style Bass, Mid, and Treble controls for easy tone shaping, along with Presence and Resonance amp EQ controls.

12 cab models to explore — or load your own

The Walrus Audio Mako MKII ACS1 comes with 12 custom-engineered cabinet IRs designed to complement the amp models for maximum tonal flexibility. The stock IRs for the Fullerton, London, and Dartford amp models were crafted by David Hislop and Kenyon Reed at Tone Factor, while the stock IRs for the Red, Citrus, and Tread amp models were designed by Justin York at York Audio. And suppose you prefer using your own impulse responses. In that case, Sweetwater is pleased to report you’ll be able to load your IRs with the Walrus Audio app available via the company’s website. You can also dial in the size of your simulated room by way of the MKII ACS1’s onboard Room, Hall, and Spring reverbs, which include adjustable Room and Decay parameters.

Customizable boost

Just like putting a boost pedal at the end of your pedal chain to hit your amplifier harder, the MKII ACS1 features a switchable boost to take your tone over the top. And it’s customizable, too — click the switch on and adjust the Volume and Gain controls to fine-tune exactly how much of a boost you need. Press the Boost switch again to save your preferred settings and return to normal operation. You also get an adjustable noise gate that’s especially helpful in high-gain situations.

User presets and advanced MIDI integration

Once you’ve dialed in a great guitar tone with the Walrus Audio Mako MKII ACS1, you can save it to one of three preset slots — Red, Green, and Blue — for instant recall. And if you need more presets, you can access them via MIDI — you’ll be able to save and recall up to 128 presets this way.

Walrus Audio pedals: built by sound tweakers for sound tweakers

The artists, musicians, and engineers at Walrus Audio take pleasure in chasing sounds that inspire, like the perfect breakup of an overdrive, a beautifully thick distortion, an endlessly sustaining reverb, and a self-oscillating delay. Simply put, these guys love to play with sound. They design stompboxes that re-create the sonic textures that they hear in their heads. Built by tone tweakers for tone tweakers, Walrus Audio’s guitar pedals are as versatile as they are functional. Complete with eye-grabbing graphics, Walrus Audio’s pedals are the perfect tools for guitarists who want to sculpt their own unique sounds.

Walrus Audio Mako MKII ACS1 Features:

  • Modeled amp and speaker tones you can send direct to a mixing board or recording interface
  • 6 detailed amplifier models ranging from vintage-style cleans to modern high-gain
  • 12 custom-engineered speaker cabinet IRs designed to complement the amp models
  • Load up your own impulse responses with Walrus Audio's app
  • Amp-style Bass, Mid, and Treble controls; Presence and Resonance amp EQ controls
  • Studio-quality Room, Hall, and Spring reverbs
  • Customizable boost with dedicated footswitch
  • Adjustable noise gate is especially helpful in high-gain situations
  • Intuitive controls and a well-placed menu screen make navigation a piece of cake
  • True stereo signal path allows you to use a different amp/cab configuration on each channel
  • MIDI support with up to 128 onboard presets
  • Impeccable audio quality with 24-bit/48kHz conversion and 32-bit floating-point processing with SHARC and ARM co-processors
  • Headphone output for silent practice sessions
  • Bypassable amp models and IRs for use with physical amps and cabinets

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

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  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.