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Walrus Audio  |  SKU: I801015-N

Walrus Audio Mako Series MKII: ACS1 Amp + Cab Simulator Guitar Effects Pedal

In Stock — Ships ASAP
$44999 USD
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About Inventory Status

Questions? Call or text us at 301-946-8808.

In stock: It is in stock and available to ship or pickup. Apparel must be shipped from another location and is not available for in-store pickup. We can usually ship or have these items available for pickup by the next business day if they don't require inspection, special handling, or setup. Our pickup location is 11151 Veirs Mill Rd. Silver Spring, MD 20902.

📆 Preorder: It is on the way to our warehouse. We can't predict when preorder items will arrive due to current supply chain issues. If you place an order for one of these items someone will contact you to estimate the delivery date.

Out of stock: We don't currently have it available but you're not out of luck yet. We still may be able to get it. If you order one of these items we will contact you with an estimated fulfillment date. You have the option to cancel the order if you change your mind.

Special order: The item is so special that it needs to be custom ordered for you. Some of these items are works of art and have to be made individually. Orders for special order items must be prepaid and we cannot accept cancellations or refunds.

█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.

About Item Conditions

Questions? Call or text us at 301-946-8808.

New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.

Mint or Open Box: The item may have been opened and tested but has been repackaged. The original packaging may have superficial issues but the item itself and any originally included accessories are in perfect, like new condition.

Display Model: These items are so cool that we put them on display in our legendary shop. The condition is brand new as received from the manufacturer with manufacturer warranty. Rest assured, these items undergo a very careful inspection before shipping.

Demo: These items have been on our sales floor for demo purposes and will likely show signs of use. The original packaging may no longer be included, but you can be assured that you are receiving an awesome item and an awesome price.

Used: The item is used. These item may have varying degrees of wear. Please read the description for information about the condition of the item. Used items do not carry a warranty.

B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.

Description


Customizable Cabinet Simulation - The Walrus Audio Mako Series MKII: ACS1 Amp + Cab Simulator Guitar Effects Pedal

The [ACS1] is an amplifier and speaker cab simulator delivering the sound and feel of world-class amplifiers, complimentary speaker cabinet IRs created by Tone Factor and York Audio, and controllable room size. With the ACS1, players have expansive options to deliver their tone on stage, in the studio, or practicing at home. Simple controls, stereo in and out, onboard presets, and MIDI support make the ACS1 an essential tool in a guitarist's arsenal.


  • The ACS1 MKII comes in an anodized gold finish with black and green ink.
  • The 2in OLED screen measures 128x32 pixels.
  • The enclosure’s exact size with knobs is 4.9” x 2.52” x 2.64”.
  • Power requirements are 9VDC (300mA minimum).
  • The use of an isolated power supply is recommended for powering all Walrus Audio Pedals. Daisy chain power supplies are not recommended. Power supply not included.
  • 24-bit 48kHz A/D and D/A converters for high quality audio.
  • 32-Bit floating point processing.
  • Sharc & ARM co-processors.


Amplifiers

The ACS1 can mix and match stereo amp and cab combinations. Want to run an AC30-style amp on the left and an Orange-style amp on the right? Or perhaps a 5150 flavored amp in both channels but with two different cabs for a wider stereo sound? When running the ACS1 in stereo, one amp can be used through both channels, or these combinations can be run independently left and right if you choose, leading to powerful, unique amp tones. Simply press down on the Middle encoder to choose individual settings for L, R, or L+R combined. Amps can be mixed and matched with no phase/polarity issues as well.

Three Vintage Amp Models

Fullerton - Inspired by the classically bright and clear Fender® Deluxe Reverb. Crisp clean tones with loads of headroom that players have come to love over the years.

London - Inspired by a 1962 Marshall® Bluesbreaker with a harmonically rich, valve-driven breakup. Articulate and sensitive response.

Dartford - Inspired by the legendary jangly high-end tones from a 1960s Vox® AC30 with all the bite and chime from the British Invasion.

Three High Gain Amp Models

Red: Inspired by the distinctively raw and punchy Peavey® 5150, producing heavy, aggressive modern metal and hard rock sounds. Powerful and saturated with a tight low end, strong midrange, and a bright, cutting high end.

Citrus: Inspired by the warm, rich, and harmonically complex Orange® Rockerverb. Classic British gain with a creamy midrange and punchy lows. Maintains clarity and definition across its entire tonal spectrum, even at high-gain settings.

Tread: Inspired by the world-famous Mesa Boogie® Dual Rectifier with massive amounts of in-your-face gain. Versatile enough to be favored by guitarists in genres from hard rock, punk, metal, and more, Tread offers up plenty of saturation that’s heavy and ready to cut through the mix.

Presets

Save up to three presets onboard by dialing in your favorite sound then pressing and holding the bypass and boost switch simultaneously. Both LEDs will flash confirming your settings were saved. Cycle through presets by pressing and releasing bypass and boost simultaneously. The pedal will cycle through the three onboard presets - red, green, and blue. Additional banks and presets can be accessed in the Global Sound menu by pressing down the Left and Middle encoders simultaneously. When power is removed from the pedal, it will boot up in the last used preset. Using MIDI, up to 128 presets can be saved and recalled.


SPECIFICATIONS

  • Bypass Type: True Bypass and Buffered Bypass
  • Finish: Anodized Gold with Black and Green Ink
  • Display: 2-inch OLED Screen (128x32 pixels)
  • Enclosure Size (with Knobs): 4.9” x 2.52” x 2.64”
  • Power Requirements: 9VDC (300mA minimum)
  • Power Supply Recommendation: Isolated Power Supply (Daisy Chain Not Recommended)
  • Power Supply Included: No
  • Audio Quality: 24-bit 48kHz A/D and D/A Converters
  • Processing: 32-Bit Floating Point
  • Processors: Sharc & ARM Co-Processors


Manufacturer: Walrus Audio
Model: 900-1057MKII
SKU: I801015-N-3-WHXC
UPC: 810424036345


We are Chuck Levin's Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.


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