Crab Guitar Effects Marcus Mark iic+ clone 2025 - Black

Wanna get your 80’s Metallica on? Give some “Oh Yeahs” and with some fast chugging? This boutique amp is well built and sounds huge! I just prefer a British crunch over American for the most part.

There’s some scratches on the top on the tolex, but is otherwise pretty dang clean.

There’s some good demo videos on YouTube of this model

The Crab Marcus (often called the Marcus III) is a handmade, high-gain, all-tube guitar amplifier built by Serhii Karpenko at Crab Guitar Effects in Ukraine. It is a faithful, highly praised boutique clone/tribute to the legendary Mesa/Boogie Mark IIC+ and Mark III amplifiers, famous for delivering aggressive, tight, and famously scooped metal tones.

Key Features and Design

* Mesa Mark Inspiration: Designed to nail the punchy, aggressive, and articulate response of the vintage Mark IIC++ and Mark III circuits.

* Channel Controls: Includes multi-channel operation featuring distinct gain stages, a powerful passive tone stack, master volume controls, and presence adjustment.

* Voicing Switches: Equipped with deep, bright, and shift switches to shape the aggressive mid-range and heavy low-end resonance.

* Power Options: Available in custom wattage configurations (such as 50W or 100W class A/B power sections).

Sound and Reception

* The Tone: Renowned for brutal, high-gain thrash metal chugs and searing leads reminiscent of classic Metallica and studio-level 80s/90s high-gain sounds.

* Clean Channel: Offers surprisingly pristine, chime-heavy clean headroom that mimics classic Fender-style clarity before pushing into high-gain territory.