UDO Super 6 Blue
Analog-Hybrid Synthesizer
The Super 6 is a 12-voice polyphonic analog-hybrid synthesizer. A harmonious marriage of state-of-the-art FPGA digital hardware oscillators and voltage-controlled analog technology. It is flexible, immediate, powerful and refined with a gorgeous analog tone. Rich and evolving textures are easily teased from the unique Super-wave core and can be shaped and manipulated with the binaural analog signal path and flexible modulation capabilities. Robust, compact and versatile with solid and responsive controls – the Super 6 is a truly vibrant and inviting instrument that cries out to be played.
Overview
- 12-voice polyphonic, analog-hybrid synthesizer
- 49-key Fatar keyboard with velocity and aftertouch
- Binaural analog signal path for stereo movement and spatial effects
- 7-core Super-wave main oscillator with waveform download
- Second oscillator with FM, sync, sub oscillator and crossfade modes
- Flexible, hybrid FPGA & analog voice architecture
- Robustly built with solid, playable controls
- Multi-purpose, flexible LFOs, envelopes & modulation matrix
- Arpeggiator & step sequencer
- External audio input with threshold-based envelope and LFO triggering
- Dual stereo 24-bit digital effects
- 128 rewritable patch storage locations
- MPE controllable
Oscillators
The Super 6 features two main FPGA-based oscillators per voice
DDS 1 (Oscillator 1)
FPGA-based Super-wave oscillator core sampled at 50MHz with a centroid oscillator and six sister oscillators that can be dynamically de-phased in the stereo field
Waveshapes: sine, sawtooth, square, triangle, noise and 16 user-downloadable alternative waveforms
Alternative DDS 1 waveform format:
- Single-cycle waveform with 4096 points
- 16-bit signed integer format samples
- Bandlimited at approximately 500 times the 4096-point fundamental frequency
- Binary file with no header data and file extension .ws6
DDS 2 (Oscillator 2)
FPGA-based algorithmic oscillator core sampled at 50MHz
Waveshapes: sine, sawtooth, square, triangle, noise, pulse
Can be hard-synced to DDS 1
LFO mode
Sub oscillator mode (can be activated when in LFO mode)
Pulse waveform with variable pulse width and PWM
DDS Modulators
LFO and envelope modulation of DDS 1 & DDS 2 pitch
Selectable ½ Super or full Super mode for DDS 1
Sister oscillator detune spread control for Super waves
Pulse-width control for pulse waveform
LFO and/or ENV 1 can modulate the sister oscillator detune spread for the Super waves and the pulse-width for the standard waves
DDS 2 to DDS 1 cross-modulation for deep FM Sounds
Audio Input
Stereo audio input that feeds through the VCA, VCF and effects section
Gate triggering of envelopes and LFO 1 based on audio input level with a variable-gain input stage
LFO 1
Main LFO with low and high-frequency modes, rate adjustable from 0.05 Hz to 20 kHz
Left-right phase control for stereo effects, harnessing the binaural sound engine
Can be free-running or reset on note press
One-shot mode allows LFO 1 to act as an additional envelope
Keyboard tracking mode for high-frequency LFO (useful for FM sounds)
LFO 1 can be mapped through the DDS 1 or DDS 2 audio path in either fixed or tracking high-frequency modes for use as a drone or a third oscillator
Can be synchronized with the sequencer and arpeggiator as well as an external clock
Mixer
Adjusts the mix-level of DDS 1 and DDS 2 audio signals
When in X-Fade mode, adjusts split point on the keyboard of crossfaded DDS 1 and DDS 2 (or audio input) signals
Voltage Controlled Filter
The SSI2144 reprises the SSM2044 of legacy chipmaker Solid State Micro Technology, which many believe to be the best-sounding analog synthesis filter IC ever produced. Based on Dave Rossum’s patented classic improved ladder topology, the SSI2144 allows rich tonal characteristics that showcase the very best attributes of subtractive synthesis.
Analogue 4-pole low pass self-resonant filter
Two levels of overdrive
High pass filter with fixed frequency or linked to low pass filter for a bandpass response
Selectable keyboard tracking modes with filter autotune for accurate keyboard tracking
Modulation by ENV 1 and/or ENV 2, LFO 1 and DDS 2
Voltage Controlled Amplifier
Analogue VCA with selectable fixed or variable envelope (ENV 2) modulation
LFO 1 modulation
Dynamics control for selectable velocity sensitivity
Envelopes
ENV 1: Invertible Hold-Attack-Decay-Sustain-Release, mappable through modulation matrix
Looping mode with selectable keyboard tracking for use as an LFO or FM source
ENV 2: Attack-Decay-Sustain-Release, multiple destinations
Keyboard and Controller Section
49-key Fatar mechanism with velocity and aftertouch
Two-axis bender with LFO trigger
Voice modes: Poly 1, Poly 2, Solo, Legato, variable size and type Unison
Keyboard-adjacent dedicated controls for bender DDS 1/2 pitch and VCF cutoff modulation
LFO 2 with rate and delay controls, selectable triggered and always-on modes
Variable portamento
Expression pedal and sustain pedal inputs
Playable spring-lever keyboard octave selector
MPE MIDI compliance with response to note on and off velocity, polyphonic aftertouch, polyphonic pitch bend and polyphonic expression
Modulation Matrix
Intuitive modulation matrix with pre-defined destinations and also mapping to a wide range of front panel controls
LEDs give clear feedback on mappings and modulation depths
20x audio-rate modulation computation
Arpeggiator/Sequencer
MIDI-syncable, multi-mode arpeggiator with smart-hold
MIDI-syncable 64-step sequencer with programmable note, rest, slide, accent and length tracks
LFO 1 and delay controls can be locked to the arpeggiator/sequencer clock
16 rewritable memory locations for storing sequences
Effects
Dual-mode stereo chorus using 24-bit 192 kHz processing
Syncable and modulatable stereo delay with 24-bit 192 kHz processing
Performance
128 rewriteable patch memories with 64 factory patches and 64 empty slots for user patches
Superior build quality, easy access buttons, sliders, knobs and a menu-free interface
IO Connections
MIDI in, out and thru on DIN connectors
USB IO for MIDI and patch, sequence and waveform management
Audio input for stereo ¼” jack
Main left and right outputs for unbalanced ¼” jacks
High-quality stereo headphone power amplifier
Integration
Easy file upload and download of patches, sequences and waveforms via simple USB ‘memory stick’ type interface with no extra drivers or applications required
Easy OS upgrade over USB
What is Binaural Synthesis?
In Binaural mode, the Super 6 features a true stereo signal path in which its twelve voices are twinned to form six stereo ‘Super’ voices. Consequently, the left and right channels, and each your ears, are assigned a complete synthesizer voice. Starting with the stereo oscillators, parameters of both channels of each Super voice may be independently controlled, facilitating you the player to create gorgeous stereo images. The effect on the sound ranges from subtle to extreme stereo movement and an enhanced sense of spatial positioning relative to conventional monaural signal-chains.
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