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via the seller:
"This synthesizer gets yearly maintenance to stay in top shape even if it does not need it - I am obsessive about my gear.
New encoders and V2 knobs (Added 6 Months ago and less prone to cracking).
Bright Blue LCD Backlit display -(Added last year and matches the blue paint nicely)
Internal ribbon cables upgraded for better control signal integrity and reliability (Recommended by Waldorf)
Comes with:
16 voice Q Rack Synthesizer
110v USA Power cable
Audio patch cable pair
MIDI patch cable pair
User Manual
Features list:
16 part multi timbral
300 single programs
100 multi programs
100 step sequencer patterns
card slot for additional storage
27 endless dials
45 buttons for editing
2 x 20 character display

6 analog outputs (3 stereo outs)
2 analog inputs (1 stereo in)
1 S/PDIF output (44.1kHz)
MIDI In/Out/Thru
2 Switch Inputs (e.g. Sustain Pedal, Gate In etc.)
2 CV Inputs (e.g. Foot Pedal, external controller etc.)
built-in universal voltage power supply
Dimensions: Width 483mm, Height 89mm, Depth 220mm
color Yellow
Per voice:
16 voices, expandable to 32 voices
3 Oscillators per voice

Pulse with Pulse Width Modulation
Sawtooth
Triangle
Sine
new oscillator algorithms
waves
Noise generator
Ring Modulator
Mixer with Balance, each signal source (oscillator, noise, ringmod, external audio material) can be balanced individually between filter 1 and filter 2
2 Filters, different types, all including FM and distortion
Low Pass (12dB/24dB)
Band Pass (12dB/24dB)
High Pass (12dB/24dB)
Notch (12dB/24dB)
Comb Filter (positive/negative feedback)
etc.
Modulation Matrix with 16 slots, freely routable
Pre-routed Modulation destinations, sources selectable
modulation update frequency in audio range to allow the oscillators to be used as modulation sources
4 Modifiers
Arpeggiator with user pattern, including accents, timing information, swing, glide, chords and more

Step Sequencer with 32 steps, polyphonic, different controller values per step
3 LFOs up to audio range (> 1000 Hz)
4 envelopes, enhanced ADSR configuration with loop and one shot function, bipolar
different trigger modes for each envelope, poly, mono, dual, unisono, manual trigger etc.
2 individual high-quality effects per sound, the first 4 sounds keep their effects in multi mode
Effect Types:
Chorus
Flanger
Phaser
Distortion
Delay
etc."