BASTL's Citadel Wave Bard is a reversible Eurorack module that flips between two completely different personalities—one side runs the Wave Bard sample player, flip it over and you get the FX Wizard multi-effects processor, all in a compact 16 HP footprint. It's a clever solution that lets you choose your creative direction without committing rack space, and it speaks to BASTL's philosophy of packing maximum flexibility into minimal real estate.
The Wave Bard side is a stereo sample player built around a surprisingly deep architecture. You get up to 32 banks with 8 samples per bank (adjustable in the web editor), with a total sampling capacity of 89 seconds in mono or 44 seconds in stereo at 44 kHz, 16-bit resolution. The pitch knob covers a full 4-octave range with quantization control, and you can modulate sample selection, length, and envelope via the built-in LFO or pattern generator. A resonant low-pass and high-pass filter lets you shape the character of your samples, while stereo delay and chorus/flanger effects add dimension. All parameters respond to CV modulation, making it deeply patchable within larger systems. The module includes a surprisingly powerful pattern and gate generator for sequencing, full MIDI support via both TRS and USB, analog sync in and out, stereo line inputs and outputs, and a headphone output that can drive up to 250 ohm headphones. You load custom samples through a web-based app via the rear USB-C port, which also handles firmware updates and USB MIDI.
Since its November 2025 release, the Citadel has found its footing as an ideal entry point for beginners building their first Eurorack system while offering enough depth and sonic character to justify a spot in established rigs. The reversible panel design has been particularly appreciated by users who want flexibility without the panel-swapping hassle, and the integration of pattern generation and effects means you can create complete musical ideas without extensive external patching. Some users note the sample time limitation as a trade-off for the compact size, but the quality of the stereo processing and the intuitive control layout have earned consistent praise from the modular community.
