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Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal

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Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal

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$429.00 to $477.00 Price Tier: Standard

5.0 (1)

1 Review

Find out who is using Walrus Audio Mako MKII ACS1

1 community setup

1 wishlisted

4 saved

Page last updated Jul 06, 2026

Pricing and availability

We compare 600+ stores and found this item at 7 stores. Prices updated July 6, 2026.

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Reviews

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4.0 (6)

$449.99 $429.00 $20.99

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$449.99

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4.6 (8)

$429.00

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5.0 (1)

$429.00 27 available New

$257.53 11 available Used

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$449.99

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$449.99

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5.0 (5)

$485.00 $477.00 $8.00 · All time low

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Average Price: $421

Standard/Professional

$200

$501+

Price Tier

In the Amp & Cabinet Simulators category, Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

Budget

Standard

High-end

Price History

Based on price data from 5 merchants for "Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Unleash the full potential of your guitar rig with the Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal, designed for musicians who demand versatility and precision. This compact powerhouse packs six legendary amp models inspired by iconic amplifiers, from the sparkling cleans of the Deluxe Reverb-inspired Fullerton to the crushing high-gain tones of the 5150-inspired Red. With 12 meticulously crafted cabinet IRs, the ACS1 provides an expansive tonal palette, allowing you to mix and match amp and cab combinations for a rich stereo soundscape.

The intuitive interface, complete with amp-style EQ and Gain controls, ensures seamless navigation and customization. Load your own IRs via Walrus Audio's web app or choose from the expertly designed stock options to tailor your sound to perfection. Three studio-quality reverbs—Room, Hall, and Spring—add depth and dimension, simulating various acoustic environments.

Whether you're performing live, recording in the studio, or practicing at home, the ACS1 adapts to your needs with stereo I/O, MIDI support, and 128 onboard presets. A customizable boost, adjustable noise gate, and true stereo signal path further enhance its functionality, making it an indispensable tool for guitarists seeking a pedalboard-centric solution to direct amp and cab simulation.

Key Features:

Six detailed amplifier models ranging from vintage-style cleans to modern high-gain
12 custom-engineered speaker cabinet IRs complemented by the ability to load your own
Studio-quality Room, Hall, and Spring reverbs
Amp-style Bass, Mid, and Treble controls; Presence and Resonance amp EQ controls
Customizable boost with dedicated footswitch
True stereo signal path with mix-and-match amp/cab combinations
MIDI support with up to 128 onboard presets
Impeccable audio quality with 24-bit/48kHz conversion and 32-bit floating-point processing
Headphone output for silent practice sessions
Bypassable amp models and IRs for use with physical amps and cabinets

Product specs

Pedal Type	Amp & Cab Simulator
Analog/Digital	Digital
Form Factor	Pedal
EQ	3-band EQ
Presets	3 x Onboard, 128 via Midi
Amp Modeling	6 x Amp Models
Impulse Response	12 x IRs, 3rd Party IR Support
Distortion/Overdrive	Boost
Effects	Noise Gate, 3 x Reverb
Inputs	2 x 1/4" (mono/L, stereo/R)
Outputs	2 x 1/4" (mono/L, stereo/R)
MIDI I/O	2 x 1/8" (In, Thru)
USB	1 x USB-C
Headphones	1 x 1/8"
Bypass Switching	Relay-based True Bypass
Power Source	9V DC 300mA power supply (sold separately)
Height	2.64"
Width	2.52"
Depth	4.9"

FAQs

What amp models are included in the Walrus Audio Mako MKII ACS1?: The Walrus Audio Mako MKII ACS1 features six amp models, including the Deluxe Reverb-inspired Fullerton, the Bluesbreaker-inspired London, and the AC30-inspired Dartford, providing a versatile range of vintage tones.
Can the Walrus Audio Mako MKII ACS1 load third-party impulse responses?: Yes, the Mako MKII ACS1 supports 12 built-in impulse responses and allows for the loading of third-party IRs, giving you flexibility in shaping your sound.
How many presets can be stored on the Walrus Audio Mako MKII ACS1?: The Mako MKII ACS1 offers 3 onboard presets and can store up to 128 presets via MIDI, allowing for extensive customization and recall during performances.
What are the power requirements for the Walrus Audio Mako MKII ACS1?: The Mako MKII ACS1 requires a 9V DC power supply with a minimum of 300mA. Using an isolated power supply is recommended for optimal performance.
Does the Walrus Audio Mako MKII ACS1 support stereo input and output?: Yes, the Mako MKII ACS1 features stereo inputs and outputs, making it suitable for complex stereo rig setups and ensuring a rich, immersive sound experience.

Reviews

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PROS

Offers 6 amp IRs and 12 cab sims, providing extensive tonal options
Compact size fits comfortably on pedalboards without sacrificing features
Built-in adjustable boost functions like a preamp hit, increasing overdrive and volume
Simple preset updates and volume matching on the fly
Midi controllable, enhancing live performance versatility
Packs a lot of features into a small, space-saving package
Versatile amp options from classic to high gain

CONS

Requires 1/8 TRS cable for midi, might need additional adapters
Some users may desire greater volume output

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Walrus Audio Mako MKII ACS1 Amp and Cab Simulator Pedal.

Features and functionality

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Cutting high frequencies to 6-8kHz can significantly reduce digital noise in headphone setups with the ACS1.
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The ACS1's room knob can mimic an "amp in a room" sound by acting as a Spring, Hall, or Room reverb.
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The ACS1 allows users to run a stereo setup with two different amps, such as an AC30 on the left and a Fender Deluxe Reverb on the right.
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The ACS1 MKII includes an Orange Rockerverb preamp, a feature some users had hoped for in previous versions.
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Software and compatibility

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The ACS1's default EQ settings are at 20kHz, which might cause digital noise; adjusting EQ is crucial for optimal sound.
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Users appreciate the ability to upload their own IRs, with some preferring York IRs for added "sparkle" compared to the stock Ribbon mic IRs.
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The ACS1 MKII will not backport new amp models to older units; however, firmware updates are still planned for existing Mako owners.
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User experience

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Owners have noted that while the ACS1 sounds fantastic, it may be replaced by more versatile setups like the Quad Cortex for those needing extensive amp/cab options and IR loading.
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After firmware updates, users report that the ACS1 feels like a completely new pedal, improving issues such as gain availability and volume level consistency.
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Some owners find the ACS1 doesn't respond to pedals like traditional tube amps, lacking the dynamic interaction with fuzz pedals at varying volumes.
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Comparisons

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Owners who have used both the ACS1 and the Strymon Iridium note that the ACS1 now offers more gain options and improved IRs post-update, whereas the Iridium has a simpler interface.
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Users compare the ACS1 to the UA Dream, noting ACS1's versatility with multiple amp sims versus UA's more authentic tube-like response.
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Use cases and applications

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The ACS1 is particularly useful for home players needing a quiet practice solution, with features like a headphone jack enabling late-night play without disturbing others.
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The ACS1 is favored for its versatility in recording setups, allowing for high-quality DI recording while mitigating ambient noise like barking dogs or household activity.
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The ACS1 is favored for stereo setups, allowing two separate amps, a feature unique at this price point compared to other compact options.
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Value and pricing

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Despite being $50 more than competitors like the Iridium, the ACS1 offers a broader feature set, justifying its premium price.
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5.0 out of 5

Based on 1 Review and 1 Rating

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derrick_j_lugo

1200

about 1 year ago

The Most Overlooked Amp and Cab sim solution on the market. Better than anything I've tried in this or any price range.

Probably the most looked over Amp-Sim/IR solution on the market. The ACS1's first iteration made a big splash but was primarily used by worship guitar players and a number of Nashville and studio guys. The MkII has high gain amps added, an LED interface with deep editing features and parameters, a simple but effectively deep interface, built in reverb (hall, room and spring), built in compression, boost and IR's from the industry's most sought after companies as well as allowing you to load your own IR's. The Bit Rate and null response is on par with ToneX and Quad Cortex. The MKII has stereo out, Midi capabilities and can easily be powered by just about every pedal board power supply (9v 300mh). It integrates really well with existing boards. This basically replaces your amp. It takes pedals really well and has an interface that is easy and intuitive. If you are the kind of player that does not want to deep dive with menu's, download apps or connect to a computer to get the sounds you want this is the unit for you (and me honestly). Seriously, all you have to to is turn some knobs, press down a button or two and boom! you'll find a sound you like and can play/enjoy immediately.

I'm 41, married with 4 kids and I cannot tell you how refreshing it was not to need a masters degree in programming or spend a year learning a new interface, or hours figuring out how to connect this to an app or computer to get some great tones out of this unit. I have owned the Nano Cortex, the ToneX and while they were good sounding units, I had such a hard time trying to find sounds that I genuinely could use out of the box. I had to learn a new interface and workflow, download apps and at times, pay extra for amps/sounds that I did not have access to on the stock model. The ACS1 has 6 really great amps and a fantastic list of IR's to choose from out of the box, and the ability to deep dive into the amps EQ section with easy navigation, it just means so much that it's that easy to get the sounds I want out of this pedal.

Words can't express enough how awesome this pedal is. it's a fantastic on board amp/cab solution. Has stereo in and outs, updated amp models, new amp models and completely reworked cabs/IRs. It's easy and intuitive to navigate and use and just flat out sounds great IMO. The amp/cab sounds are going to sound and feel legit. The new ACS1 MKII reacts the way an amp reacts, and I cannot express this enough. If you have the coin, don't feel like jumping over to the all in one modeler/capture boards, this is a fantastic solution, particularly if you love pedals and pedal boards in general.

Roles:

Guitarist

Genres:

Rock Pop Blues