• Analog Synthesizer
• Clone of the Elka Synthex (1981-1985)
• Fully analog signal path
  
• Eight-voice polyphonic
  
• Two oscillators (DCOs) with PWM
  
• Ring modulator
  
• Noise generator
  
• Multimode filter
  
• Two ADSR envelopes
  
• Two LFOs with sync and fade-in
  
• Polyphonic aftertouch
  
• Chorus effect
  
• 1408 presets (11 banks x 128 presets)
  
• Clear layout
  
• Parameters correspond to the original
  
• Desktop case respectively 19" 4U
  

Sound generation

The two oscillators are very homogeneous and powerful sounding DCOs, each have the waveforms triangle, sawtooth, square and pulse, handle PWM and are individually switchable into the ring modulator. The third sound source in the Xerxes is the noise generator, which produces white or pink noise. The fine tuning of the good basic sound is done by the multimode filter. It handles lowpass, two bandpass, highpass and is resonant. The last link in the signal path is the switchable chorus effect, which adds width and liveliness to the sound.

Modulation

Two ADSR envelopes are permanently assigned to filter and VCA, but can be finely dosed via velocity and aftertouch matching. Glissando respectively Glide can be set separately for the oscillators. The two LFOs can be synchronized to MIDI-Clock if required and can be used for a maximum of 10 destinations. Thanks to six waveforms and their own transient delay, no wishes remain unfulfilled here.