Have you seen this… not sure if this vapour ware as there are no audio samples and the price is not listed…

http://www.hypersynth.com/xenophone.html

Oscillators

  • 3 Oscillators with 6 Waveforms: Saw, Square, Triangle, Variable Shape Saw-Sqr and Tri-Sqr
  • 2 Subs + 2 XOR rings
  • Oscillator special features: Hard sync, Phase sync, Phase adjustment, Square PW, Shape Modulation, Detune, FM, Analog Drift
  • 4 types of noise: White, Pink, Red, C64 (pitched)
  • 1 Analog Ring modulator
    Filter
  • 1 Multimode VCF with 6 filter types and 3 selectable slopes: 12,18, 24dB (Lowpass , Highpass, Bandpass, Notch, 18LP>6HP, 12LP>6HP)
  • VCF self-oscillation with Sinus, Triangle and Clipped Triangle wave in different modes
  • Filter FM via Oscillator1 (audio rate modulation of filter freq)
  • Precise filter keytracking including: note pitch, portamento and pitchbend signal
    Modulations
  • 3 LFOs with 6 Waveforms (Sin, Tri, Saw, Sqr, S&H, S&Glide)
  • LFO Features: Sync, Reset, Freq Range= 0 - 100Hz
  • LFO1 and 3 have 6 easy access mod targets independent from mod matrix
  • 3 Envelope Generators: Amp, Filter, Mod (6-stage DAHDSR from 1mS to 30S)
  • 4 Envelope Styles (Analog RC1, RC2, Exponential, Digital Linear)
  • 3 Envelope Trigger modes (Always, Legato, LFO2 S&H)
  • Loop option for all envelopes
  • 8-Slot Modulation Matrix (up to 33 mod sources and 50 mod targets)
  • CV Input as mod source
    Effects and Main bus
  • 3 Types Analog Distortion (light, harsh, massive)
  • 24-bit Stereo Digital FX (Room, Hall, Cathedral, Gated, Plate, Delay, Delay+Reverb, Ping Pong Delay)
  • Feedback loop via external audio input
  • Stereo output with balance control
  • Low noise and high quality VCAs for amplitude and balance
    Arpeggiator and Sequencer
  • Arpeggiator with gate adjustment, various spans and 15 clock divisions (syncable to MIDI clock)
  • 16x4 step sequencer per program
  • Sequencer features: Note Slide, (Note, Velocity, AUX Track1, AUX Track2)
    Hardware and Controls
  • 26 Soft touch knobs + 27 Buttons
  • 88 LED indicators
  • 2x20 Character OLED display
  • 3 buttons for previewing presets
  • 2 knobs acting as Mod-wheel and After-touch
  • 512 Sound Programs
    Ins and Outs
  • Stereo audio output: 2x 1/4" TRS jacks (Balanced)
  • External audio input: 1x 1/4" TRS jack (Unbalanced)
  • Headphone Out: 1x 1/4" TRS stereo jack
  • CV input: 1x 1/4" TRS jack
  • MIDI In, MIDI Out
  • USB port
  • DC Power input
    Physical Specs
  • Rigid aluminum enclosure + wooden side panels
  • Dimensions: 12.9" L x 6.5" W x 1.9" H (32.8 cm x 16.7 cm x 5 cm)
  • Weight: ~2.2 lb (1 kg)
  • Includes universal power supply for 110V – 240V AC operation (12 VDC, 1A)
    All specifications subject to change without notice