One of the special features of this synthesizer is a very easy to handle modulation-system with 8 LFO/S&H-outputs plus adopted Transition system and unique Supermodulation (SMOD). There are even patternlike LFO-waveforms as modsources so You can do quite amazing and complex modulations with only very few settings.

The basic features are:

# three digital PCM-wave oscillators powered by 150 different waveforms #
# each oscillator's level can be modulated by different sources
# adopted Transition System with 3 modes
# new: Super Modulation for osc. and both filters
# new: Filter-FM for both filters with adjustable sources from all osc.
# new: Shape function for S&H seed source
# one LP filter (24db Lowpass) with adjustable Boost and ADSR EG
# one HP filter (12db Hipass) with adjustable Boost and ADSR EG
# two shapeable LFO with patternlike waveforms (bpm-synced)
# one shapeable standard LFO (bpm-synced)
# one shapeable Sample & Hold with pattern (bpm-synced)
# each LFO and S&H provide an additional Mix-out for mixed LFO-shapes
# one ADSR EG for VCA
# adjustable level for direct, LP and HP output with separate pan each
# stereo-delay for PingPong effects (bpm-synced)
# User-Waves for oscillators via Wave files (back again) and Soundfontfiles (SF2) loadable

More info
http://www.hgf-synthesizer.de/