The instrument utilizes three digital oscillators and two digital mulitmode filters. For even more versatility, the voices can be split or layered multitimbrally between two parts. Additionally, there are five master effect slots for each timbre, providing the full breadth of sound design options. Each oscillator is capable of five synthesis algorithms including Wavetable, Waveform, Particle, Resonator, and Kernal, which offers six internal kernel operators per oscillator using various FM, Ring-Mod, AM, or wavetable-based audio-rate modulations. What's more, the instrument can generate custom wavetables using audio that can either be routed into the Iridiums’s audio input, or loaded from the internal memory or removable sample memory.

The Iridium has a massive modulation section with six LFOs, six multistage envelopes that are loopable, an onscreen step sequencer, an arpeggiator, and a chord play mode with hold and latch. A 4x4 pad button matrix provides live performance controls over an array of features. The rear panel offers stereo 1/4" outputs, stereo 1/4" inputs, and 1/4" and 3.5mm headphone outputs with a dedicated volume control. Additionally, the Iridium is equipped with several 3.5mm connectors for Eurorack compatibility including four CV Continuous Control inputs, CV Gate, CV Clock and CV Start inputs, and a CV Clock output.

Additional features include a microSD card slot for importing and exporting samples and sounds and performing software updates. Also onboard is a USB computer connector USB (Type-B) and a USB controller connector (USB Type-A) for further expansion and control. The Iridium ships with an external power supply.

Top Features
Digital polyphonic synthesizer
16-voices plus two-part multitimbrality
Three stereo digital oscillators per voice, each capable of five synthesis algorithms
Wavetable creation from audio and sample based synthesis
Two digital stereo filters in various modes and configurations including innovative link modes
Visualization and deeper sound editing via multitouch display
High-quality key controls, arpeggiator, and step sequencer
4 x 4 pad matrix for sequencer, arpeggiator, sampler or live performing control
Patch-compatible with Quantum 2.0 patches, exchangeable in both directions
Multistage LFO/Env modulator:
Six LFOs
Six loopable envelopes
Master effect rack with five slots for each timbre including reverb, phaser, flanger, chorus, drive, EQ, and more
Connectors:
Stereo audio output
Stereo audio input for sample recording and real-time processing
High-Quality 24-bit A/D and D/A converters
Headphone out with separate level adjustment
4 CV Continuous Control inputs for connecting EuroRack modules or compatible devices
CV Gate, CV Clock, and CV Start inputs for connecting EuroRack modules or compatible devices
CV Clock output for connecting EuroRack modules or compatible devices
USB host type A connector for interfacing MIDI controller or USB storage devices for sample/preset exchange and software updates
USB Type-B device connector for interfacing computer or other class-compliant MIDI USB hosts (like iOS devices)
microSD Card for sample/preset exchange and software updates
DIN MIDI In, Out, and Thru
External power supply unit
Stereo audio input for sample recording and real-time processing

4 GB internal Flash memory for presets, samples, and wavetables plus microSD slot for samples

Synthesis Algorithms
• Wavetable:
Waldorf style with all the classic wavetable
Speech synthesis and wavetable generation from audio
Modulatable realtime spectral modifications and FX
Innovative realtime modulation across wavetables
Various interpolations modes
Import and export wavetables from Nave format
Import from multi- and single-cycle WAV-based wavetable files
• Waveform:
Waveform with up to 8 simultaneous waves per Oscillator
Detuned or chordal modes
Internal high-quality hard-sync
Modulatable waveform warping and PWM
Tunable noise
• Particle:
Rich stereo sampler in traditional and granular mode using multisamples
High-quality pitch and interpolation algorithm for great sound
Flexible Key and velocity zones
Live input processing in granular mode
2 GB internal user sample Flash preloaded with high-quality sample content
Import of sample content via USB drive or microSD Card
• Resonator:
Exciter using noise or multisampling plus filterbank sound model
Many modulatable spectral parameters
• Kernel:
6 internal kernel operators per Osc using various FM, Ring-Mod, AM or wavetable-based audio-rate modulations
Innovative macro-templates for quick and easy editing
Rich low-level editor for additional detailed editing
Each kernel with multistage envelope and keylevels
5 macros based on Osc internal modulation matrix
Import of classic FM sound patches
Sampling Capabilities
Each of the 3 oscillators of a single timbre can be used in one of three modes using samples
Stereo multisampler with looping
Granular sampler with extensive parameter set
Resonator model using sampler as exciter
Samples are organized using key and velocity maps, selections rules like round-robin, random, etc., and individual pitch, gain, and pan settings
Samples are stored in internal Flash memory of about 2GB in capacity, prefilled with over 1GB of specially made-for-Iridium factory samples
New samples can be recorded from external stereo audio inputs or from self-recording Iridium's own engine
Samples can also be imported and stored to internal Flash via microSD card using WAV-file format (44.1 kHz sample rate)
The Iridium allows for a huge range of sample-based sound design capabilities from classical synth sounds to uncharted territories. It’s worth noting that the sample use in the Iridium is always within a synthesizer's sonic context, and it is not meant to work as a bread-and-butter sample keyboard to play back like traditional sampling instruments or third-party libraries
Arpeggiator Parameters
Seven algorithms to choose from, including up, down, random, etc.
Octave range
Seven sort orders
Three velocity modes
Gate length
Swing
BPM
Beat division
Rhythmic patterns
Reset modes
Keyboard Latch: Chordal and nonchordal
Individual patterns can be created in the step sequencer, including transpositions and scale quantization

Waldorf 16-Voice Specs
Type Desktop Module
Polyphony 16 Voices
Multitimbral Dual Timbral: Split or Layered Mode with Separate Stereo Audio Outputs
Oscillators
3 Digital Oscillators Per Voice, Each Capable of Five Synthesis Algorithms
Wavetable: Waldorf Style with Latest Additions from Nave Including Speech Synthesis and Wavetable Generation from Audio
Waveform: Waveform with Up to 8 Simultaneous Waves per Oscillator in Detuned or Chordal Mode with Hard-Sync, Warp, and PWM, as Well as Tunable Noise
Particle: Sampler in Traditional and Granular Mode Using Multisamples or Live Input
Resonator: Exciter Using Multisampling Plus Filterbank Sound Model
Kernel: 6 x Internal Kernel Operators per Osc Using Various FM, Ring-Mod, AM or Wavetable Based Audio-Rate Modulations
Filters Two Digital Stereo Filters in Various Modes and Configurations Including Innovative Link Modes
Digital Former: Additional Digital Algorithms per Voice Like Comb, High-Pass, Band-Pass, and Notch Filters (Nave, Largo or PPG models), Bit-Crusher, Drive, and more
Modulation Complex Multistage LFO/Envelope Modulators
6 LFO in Poly and Global Mode with Extensive Parameter Set
6 Loopable Envelopes
Extensive Modulation Matrix with 40 Slots and Easy Control Assignments
Effects Master Effect Rack of 5 Slots for Each Timbre, Choosing from FX like Phaser, Flanger, Chorus, Reverb, Drive, EQ, and More
Main Output: Compressor
Step Sequencer Step Sequencer with Step Recording, Parameter Automation, and Scale-Based Pitch Quantization
Tuning Microtonal Pitch Configurations Capable of Importing Skala SCL Files
Arpeggiator Yes
Chord Chord-Play Mode with Hold and Latch
Unison Mode Yes
Presets Module-Based Preset System for Effects, Oscillators, and Complex Modulators
Controls Single-Function Potentiometer and Encoder Controls for Intuitive Editing
Pad Button Matrix: 4 x 4 Pads for Sequencer, Arpeggiator, Sampler, or Live Performance Control
Supports Polyphonic Aftertouch
Automation of Sound Parameters from MIDI Inputs via MIDI CC Learn Function
Display Visualization and Deeper Sound Editing via Context-Sensitive High-Resolution Capacitive Multitouch Display
Spectral Analyzer Spectrum Analyzer and Oscilloscope at Various Processing Stages
Memory Internal Flash Memory: 4 GB for Presets, Samples, and Wavetables
Up to 7000 Sound Patch Capacity Organized by Banks, Attributes, Author, and Patch Number
Favorites Lists for Quick Recall of Sound Patches Like for Set-Lists
Preloaded with a Wide Variety of Patches by Acclaimed Sound Designers like Howard Scarr
Preloaded with More than 1 GB Sample Data
Inputs and Outputs Main Output: 2 x 1/4" / 6.3 mm
Headphone Output: 1 x 1/4" / 6.3 mm and 1 x 1/8" / 3.5 mm
Inputs: 2 x 1/4" / 6.3 mm
4 CV Continuous Control Inputs Including CV Gate, CV Clock, and CV Start Inputs for Connecting EuroRack Modules or Compatible Devices

Sampling Recording of Samples from Audio Inputs or Self-Recording of Audio Outputs
USB Computer: USB Type-B
Controller: USB Type-A
MIDI Connectors:
Input: 5-Pin DIN
Out: 5-Pin DIN
Thru: 5-Pin DIN
SD Card Slot Export and Import of Presets, Samples, Wavetable, and Software Updates
Import of Nave Presets
Power External Power Supply: 12 VDC, 3 A (Included)
Dimensions 23 x 16 x 7" / 58 x 40 x 18 cm
Weight 15.3 lb / 6.9 kg
Packaging Info
Package Weight 15.645 lb
Box Dimensions (LxWxH) 23.1 x 16.2 x 7"