Superbooth 19: GRP Synthesizer V22 Analog Vocoder First Look

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At Superbooth 19, GRP Synthesizer announced the V22. It’s a full analog Vocoder with 22 bands that offers 22 bandpass filters, 1 LP, and 1HP analysis filter as well as an HP filter on the main output. The V22 is not a small compact vocoder but a huge one that can be installed in 5U systems.

I had the opportunity to check out this massive analog vocoder. Check out below my first look video with Enrico in Vocodish. 16

GRP Synthesizer V22


After a sneak preview in Florence at Meff, we are working hard to be ready for the official presentation of the V22 at Superbooth 2019 in Berlin. Before Superbooth, another preview in Rome May 4th at Synth Day & Night with Mr. Enrico Cosimi (please find all the details in the Upcoming Events section of this newsletter).

A 22 band full analog design vocoder, with analysis and synthesis section full analog (20 BP, 1 LP, and 1 HP analysis filters), a dedicated High Pass Filter on Main Output, everything hosted in an independent cabinet with wooden panels with an also an optional ‘Tolex’ version, these are the main technical features of the Grp Vocoder V22.


  • 22 band full analog design vocoder
    • LP48dB@185Hz&HP48dB@7040Hz
    • 20 BP Filters 48 dB BP @ 220, 262, 311, 370, 440, 523, 622, 740, 880, 1047, 1245, 1480, 1760, 2093, 2489, 2960, 3520, 4186, 4978, 5920 Hz
  • Analysis section full analog with 20 BP, 1 LP, and 1 HP analysis filters
    • Speech In/Analysis with Compressor & Noise gate freely adjustable
    • Mic/Line combo XLR/TRS/TS input – no phantom power
    • Mic/Line Level Input Gain with dedicated analog Vu-meter
  • Synthesis section full analog with 20 BP, 1 LP & 1 HP analysis filters
    • Internal Carrier Oscillator with selectable Saw/Pulse Wave and dedicated VCO Level
    • Wide range VCO TUNE pot, with CV and MIDI external control capabilities! Freely adjustable
    • MIDI & CV Bend Amount over Internal Carrier VCO
    • FM on Saw/PW on Pulse wave freely adjustable
    • Internal Carrier Noise Generator with dedicated Noise Level
    • Voiced/Unvoiced Detector, for automatic switching between internal VCO and Noise
    • Voiced and Unvoiced activities LED
    • V/UV Mode OFF, Mixed V/UV, SWITCHED
    • Threshold V/UV freely adjustable
    • Time response for V/UV switching selectable Slow/Medium/Fast
    • Time response selectable for Symmetry Attack/Release, only Attack, only Release! Slew Rate fully adjustable from very fast to full freeze
    • Dedicated Freeze Slew switch, with external Gate and MIDI control
    • External Voiced and External Unvoiced signals with dedicated analog connections and level controls
  • Analysis/Synthesis controls
    • Each analysis band has dedicated envelope follower output, VCA control input & VCA output level for band mixing
  • Analysis/Synthesis interaction
    • Internal normalization 1-by-1 between analysis and synthesis bands
    • Front panel patching 1/4” for free re-configuration analysis/synthesis
    • Coupling control for different internal re-configuration with selectable offset
    • Env Foll -> VCA in 1-by-1 or +1/+2/+3/-1/-2/-3 offset from Env Foll to VCA CV In
  • Dedicated high-pass filter on the main output  
  • Main output level control with dedicated Vu-Meter
  • MIDI interface
    • MIDI In/Thru on cabinet back panel
    • Dedicated hardware MIDI SubModule for 5U modular mounting
    • MIDI Note On/Off with MIDI Pitch Bend on Carrier Internal VCO Pitch or MIDI Mod Wheel for Slew Limiter Time control
    • MIDI Sustain On/Off for Slew Limiter Freeze On/Off
  • Front panel connections
    • Audio Input Connections: Combo XLR/TRS Mic/Line Inputs, external Voiced signal, external
    • Unvoiced signal
    • Control Input Connections: VCO 1V/Oct, Freeze Momentary Switch, Slew Time 0/+5V control ino Audio Output Connections: Internal VCO Output, Internal Preamp Output, Phones Output, Left
    • Output (odd numbered bands output), Right/Mono Output (even numbered bands output)o Control Output Connections: V/UV Control Output
  • Physical
    • Same hardware standard of Grp A2 Synthesizer & R-24 Step Sequencer
    • Fully independent HW cabinet with wooden panels
    • Optional “tolexed box” cabinet with upper handle and metal angles for real vintage loop.
    • Tolexed box has internal power for easiness of transport External power unit
    • 8-unit width in 5U modular format
    • Can be installed in 5U modular cabinets with DotCom and Moon Modular powering standards

First Look Video

The preorder for the Grp Vocoder V22 is planned in June 2019; we are not able currently to estimate the price of the Vocoder, but as soon as the second prototype will be finished we will publish an updated price.

More information here: GRP Synthesizer

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