








Leviathan - Japan Serie · Koi
The Leviathan is already a declaration.
The Japan Serie · Koi Edition makes it in a different register entirely.
Where the circuit within delivers raw power and tube aggression, the exterior speaks a quieter language.
A Japanese landscape rendered in watercolour tones, flowing across cream tolex with the patience of a traditional woodblock print: a pagoda rising from still water, cherry blossoms catching the last light before falling, Mount Fuji emerging through morning cloud, and a koi fish moving through it all in silence.
The bamboo trim running across the front panel and the hand-stitched tan leather handle are not decorative choices. They are material decisions, extensions of the
same attention that goes into every component inside the amplifier.
Inside, the same Leviathan that has earned its place on stages and in studios across Europe.
Channel 1 offers two personalities: Normal mode for expressive crunch and touch-sensitive blues tones, and Hot mode for punchy, percussive rhythm sounds
and hot-rodded leads.
Channel 2 takes saturation to its extreme, with unmatched clarity and string separation even at the highest gain settings, letting every note breathe through the mix with surgical precision.
Powered by a custom KT88 tube power section, the Leviathan produces massive low-end authority, extended headroom, and incredible note definition even in drop tunings. Dual master volumes, MIDI control, and a high-voltage buffered FX loop complete a flagship specification designed for players who lead from the front.
Entirely handcrafted in Italy. The Koi Edition adds a second layer of craft, one that belongs to a different tradition and speaks a different language.
Together, they make something that has never existed before.
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This edition is made to order.
Estimated production time: 4 weeks from order confirmation.
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→ Looking for the standard Leviathan? Discover it here.
Specifications
Dimensions
Popular upgrades
Pay in installments or later — available at checkout
Pairs well with
🚚 DHL / FedEx shipping
📦 Returns accepted
💳 Secure payment
Made to order — ships in around 4 to 6 weeks
2-Year Warranty

Leviathan - Japan Serie · Koi
No Artwork. Just Material.

Built by Hand. Tuned by Ear. Designed to Inspire.
Made in Italy Artisan Boutique

Crafted Like an Instrument. Built Like a Legacy.
Each RedSeven amplifier is born in our Italian atelier, assembled by master builders who shape sound with the same care as fine luthiers.
Small-batch production, hand-selected components, and hours of tuning ensure every unit carries an identity, not just a serial number.
This is craftsmanship you don’t just hear.
You feel it.




