Uploaded October 2025 | Updated September 2026, 9 hours ago
Bastl CITADEL - Fortress of Modular Magic - is a Eurorack reimagination of the popular Kastle 2 semi-modular desktop device. The CITADEL comes with a full 3.5mm patch bay that offers the flexibility needed in the Eurorack format while maintaining the strengths of the Kastle 2 allowing it to stand on its own, and yet let it truly shine when patched with other modules. We’ve also added switches
for hands-on control of the pattern generator. The Citadel provides the basic infrastructure needed to integrate Eurorack systems within the context of electronic music making: headphone output, TRS MIDI input and sync, tempo generator with divider/multiplier, USB MIDI (from the back of the module), stereo mixing, integrated LFO and Pattern generator and effects. All that makes it the perfect module for smaller and beginner systems while the fun and unique creativity of the Kastle 2 firmwares:
the FX WIZARD multi-effect processor and WAVE BARD sample player will earn its place in
larger setups.
🛠️ Get Wave Bard & FX Wizard at the same time 🔃
The Citadel comes equipped with a reversible front panel with WAVE BARD on one side
and FX WIZARD on the other side. It also comes with our custom designed tool to make
the panel switching as seamless as possible. You can load and try different Citadel/Kastle 2
present and future firmwares and updates with a USB port (on the back).
The Citadel might break a few rules of standard Eurorack design, but it does so in the name
of instant musicality, fun, and effortless integration of Eurorack with other gear. The PITCH
inputs on the WAVE BARD track 1V/Oct, are factory-calibrated, and there’s even dedicated
calibration software to ensure a perfect match with your source.
Buy the Citadel FX Wizard Here 👇
shop.bastl-instruments.com/eurorack/citadel-fx-wizard.html
Buy the Citadel Wave Bard Here 👇
shop.bastl-instruments.com/eurorack/citadel-wave-bard.html
3D and Soundtrack by Matteo Ruggiero
instagram.com/sxilence6
Chapters:
00:00 Intro
00:41 Reveal + Overview
01:16 Citadel Wave Bard Demo Overview
02:05 Citadel FX Wizard Demo Overview
02:58 Demos
—
► GET OUR INSTRUMENTS: shop.bastl-instruments.com
► LIST OF RETAILERS: bastl-instruments.com/retailers
► EXCLUSIVE CONTENT AND COMMUNITY: discord.gg/C4RXRjgYJ6
FOLLOW US
---------------------------------------------------
Twitter: twitter.com/bastlinstrument
Facebook: facebook.com/bastlinstruments
Instagram: instagram.com/bastlinstruments
Discord: discord.gg/C4RXRjgYJ6
TikTok: tiktok.com/@bastl.instruments
Soundcloud: soundcloud.com/bastl-instruments
GitHub: github.com/bastl-instruments
Bastl CITADEL - Fortress of Modular Magic - is a Eurorack reimagination of the popular Kastle 2 semi-modular desktop device. The CITADEL comes with a full 3.5mm patch bay that offers the flexibility needed in the Eurorack format while maintaining the strengths of the Kastle 2 allowing it to stand on its own, and yet let it truly shine when patched with other modules. We’ve also added switches
for hands-on control of the pattern generator. The Citadel provides the basic infrastructure needed to integrate Eurorack systems within the context of electronic music making: headphone output, TRS MIDI input and sync, tempo generator with divider/multiplier, USB MIDI (from the back of the module), stereo mixing, integrated LFO and Pattern generator and effects. All that makes it the perfect module for smaller and beginner systems while the fun and unique creativity of the Kastle 2 firmwares:
the FX WIZARD multi-effect processor and WAVE BARD sample player will earn its place in
larger setups.
🛠️ Get Wave Bard & FX Wizard at the same time 🔃
The Citadel comes equipped with a reversible front panel with WAVE BARD on one side
and FX WIZARD on the other side. It also comes with our custom designed tool to make
the panel switching as seamless as possible. You can load and try different Citadel/Kastle 2
present and future firmwares and updates with a USB port (on the back).
The Citadel might break a few rules of standard Eurorack design, but it does so in the name
of instant musicality, fun, and effortless integration of Eurorack with other gear. The PITCH
inputs on the WAVE BARD track 1V/Oct, are factory-calibrated, and there’s even dedicated
calibration software to ensure a perfect match with your source.
Buy the Citadel FX Wizard Here 👇
shop.bastl-instruments.com/eurorack/citadel-fx-wizard.html
Buy the Citadel Wave Bard Here 👇
shop.bastl-instruments.com/eurorack/citadel-wave-bard.html
3D and Soundtrack by Matteo Ruggiero
instagram.com/sxilence6
Chapters:
00:00 Intro
00:41 Reveal + Overview
01:16 Citadel Wave Bard Demo Overview
02:05 Citadel FX Wizard Demo Overview
02:58 Demos
—
► GET OUR INSTRUMENTS: shop.bastl-instruments.com
► LIST OF RETAILERS: bastl-instruments.com/retailers
► EXCLUSIVE CONTENT AND COMMUNITY: discord.gg/C4RXRjgYJ6
FOLLOW US
---------------------------------------------------
Twitter: twitter.com/bastlinstrument
Facebook: facebook.com/bastlinstruments
Instagram: instagram.com/bastlinstruments
Discord: discord.gg/C4RXRjgYJ6
TikTok: tiktok.com/@bastl.instruments
Soundcloud: soundcloud.com/bastl-instruments
GitHub: github.com/bastl-instruments
