Check the listing for details. Waldorf Iridium Core Polyphonic Desktop Synthesizer. Condition: Very Good - Refurbished. Listed at 1499.10 USD. Massive Waldorf Sound in an Ultra-compact Module The Iridium Core packs the massive sound of Waldorf’s advanced synthesis technology into an ultra-compact desktop module. Perfect for small studios, live performances, and Eurorack integration, the Iridium Core features fewer hands-on controls than its big brother, the Iridium. Still, it retains the three wavetable oscillators (each capable of five synthesis modes), dual stereo filters, ample modulation sources, and power-packed FX section. Plus, the Iridium Core includes the same high-resolution display as the Iridium, giving you easy access to the synth’s numerous parameters. Synthesists at Sweetwater appreciate the Iridium Core’s space-saving form factor and robust build quality.