Updates: October 2017
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Vintage Roland 24-pin Guitar Synthesizers

Roland GR-100

Roland GR-100

  • Complex hexaphonic distortion circuit
  • Additional sustain overdrive (mode 3)
  • 6 individual -12 dB low-pass Voltage Controlled Filters, one per string
  • Frequency peak and sensitivity controls for VCFs
  • Built-in footswitch controls the VCF mode (on, bypass, or inverted)
  • Low Frequency Oscillator with rate control, for vibrato effects
  • Lush analog bucket-brigade chorus/vibrato
  • Pedal control input for the VCF
  • 3 outputs: guitar, mix/e.q. and chorus
  • Synchronized, flashing LED status indicators
  • Dimensions: 11.75" (W) 9.8" (D) 3.75" (H)
  • Power Requirements: 9 watts
Roland GR-300

Roland GR-300

  • 6-voice polyphony
  • 2 oscillators per voice
  • VCOs (voltage controlled oscillator) are directly harmonically locked to each string, but can be tuned separately
  • VCF (voltage controlled filter, low pass) -24 dB per octave, with envelope modulation (attack and sensitivity)
  • Low Frequency Oscillator, for Vibrato Effects
  • Built-in foot switch controls the VCO mode (single/dual)
  • Built-in foot switches control the VCO harmonize pitch (detuning of the VCO's)
  • Built-in foot switch controls the VCF mode (on, bypass, or inverted)
  • Pedal control input for the VCF
  • The GR-300 can output either the guitar, the synth, or a mix of the two
  • Synchronized, flashing LED status indicators
  • Dimensions: 15.7" (W) 11.4" (D) 3.9" (H)
  • Power Requirements: 20 watts
Roland GR-33B

Roland GR-33B

  • 4-voice polyphony
  • 2 oscillators per voice
  • VCOs (voltage controlled oscillator) are directly harmonically locked to each string, but can be tuned separately
  • VCF (voltage controlled filter, low pass), 2 modes, -12 dB or -24 dB per octave, with envelope modulation (attack and decay)
  • Low Frequency Oscillator with lag (delay) generator
  • Built-in foot switch controls the VCF or VCA modulation
  • Built-in foot switches control the VCO harmonize pitch (detuning of the VCO's)
  • Built-in foot switch selects envelope presets A or B
  • Pedal control input for the VCF
  • The GR-33B can output either the guitar, the synth, or a mix of the two
  • Synchronized, flashing LED status indicators
  • Dimensions: 15.75" (W) 11.125" (D) 4" (H)
  • Power Requirements: 20 watts
Roland GR-500

Roland GR-500

  • Guitar Section: Equalizer ON/OFF, Equalizer Frequency
  • Polyensemble Section: Voicing volume, wood, soft reed, brass, strings. Envelope generator: attack, decay, and sustain
  • Bass Section:Voicing volume, percussion, soft, hard, decay (long/short), string selective switch 1-6/4,5,6/5,6, Envelope generator: attack, decay, and sustain
  • Solo Melody Section: Pulse width modulation (LFO/Manual/Env), mixer (square 16' 8', saw 8', polyensemble) VCF frequency, resonance, LFO frequency, Envelope generator: attack, decay, and sustain. Modulation: envelope, LFO, pitch follower, pitch follower or pedal control. VCA: initial gain, envelope, touch sense (2/1/off)
  • Ext Synth Section: transpose, portamento time
  • Dimensions: 603 (W) x 154 (H) x 309 (D) mm
  • Power Requirements: 19 watts
Roland GR-700

Roland GR-700

  • 6 voice, Dual Oscillator Synth Engine Based on the Roland JX-3P/MKS-30
  • 3 - Selectable Octave Settings for Each Oscillator, 2’, 4’ and 8’
  • Choice of Square, Sawtooth or Pulse Waveform, plus Noise for Oscillator 2
  • Cross Modulation Between Oscillators
  • Frequency Modulation with Envelope and/or Modulation
  • VCF Low-Pass Filter with LFO, Envelope and Pitch Modulation
  • Variable High-Pass Filter
  • Four Stage Envelope Generator
  • Low Frequency Oscillator for Vibrato Effects
  • Selectable Dynamic Control Over Pitch, Filter and Amplifier per string
  • Selectable Pitch Bend, Hold and Voice On/Off per String
  • Lush Analog Chorus Mode
  • Programming Via Foot switches or with optional PG-200 Programmer
  • Dimensions: 27 3/16" (W) 14 3/4" (D) 6 1/8" (H)
  • Power Requirements: 45 watts
Roland GR-77B

Roland GR-77B

  • 4 voice, Dual Oscillator Synth Engine Based on the Roland JX-8P
  • 4 - Selectable Octave Settings for Each Oscillator, 2’, 4’, 8' and 16’
  • Choice of Square, Sawtooth, Pulse Waveform or Noise
  • Cross Modulation Between Oscillators
  • Frequency Modulation with Envelope and/or Modulation
  • VCF Low-Pass Filter with LFO, Envelope and Pitch Modulation
  • Variable High-Pass Filter
  • Dual Four Stage Envelope Generators
  • Low Frequency Oscillator for Vibrato Effects
  • Selectable Dynamic Control Over Pitch, Filter and Amplifier per string
  • Selectable Pitch Bend, Hold and Voice On/Off per String
  • Lush Analog Chorus Mode
  • Programming via foot switches or with optional PG-800 Programmer
  • Dimensions: 27 3/16" (W) 14 3/4" (D) 6 1/8" (H), 12 kg/26 lb. 8 oz.
  • Power Requirements: 45 watts
Roland GM-70

Roland GM-70

  • 128 Patches, each with four "Branches" (A to D)
  • Two editing methods to create a branch: General Edit and Individual Edit.
  • Supports assignable MIDI control numbers from 0 to 95, MIDI Poly and Mono Modes
  • CV #3 (Whammy Bar) supports "Absolute" or "Center" modes of operation
  • Up to 4 continuous controllers from guitar, plus 3 position mode switch
  • 2 - Assignable foot switches (Roland FS-5L, FS-5U or similar)
  • 1 - Assignable foot pedal (Roland EV-5)
  • Guitar volume control simultaneously transmits MIDI volume (controller 7)
  • Stereo input for one synthesizer
  • Optional use of Roland FC-100 foot pedal controller to change patches, plus adds one more MIDI switch and controller
  • Dimensions: 482 mm (W) 276 mm (H) 44 mm (D)
  • Power Requirements: 22 watts
  • Weight: 4.0 kg 8 lb. 13 oz.
Ibanez MC1

Ibanez MC1

  • Continuous control of MIDI trigger threshold
  • Continuous control of MIDI dynamic range
  • Effects Loop Send and Return
  • Peak and decay calibration mode
  • 10 segment display for string dynamics
  • Two mono synth inputs, internal Voltage Controller Amplifiers are used to control guitar and synth levels
  • Dedicated HOLD foot switch with front panel display LED
  • Dedicated front panel Chromatic mode LED
  • Built by Maxon Electronics (manufacturer Ibanez foot pedal processors)
  • Dedicated multifunction edit keys for easy editing, with support for assignable MIDI control numbers from 0 to 32
  • Optional use of Ibanez IFC60 foot pedal controller to change patches
  • Dimensions: 482 mm (W) 276 mm (H) 44 mm (D)
  • Power Requirements: 12 watts
  • Weight: 4.0 kg 8 lb. 13 oz.
Korg Z3

Korg Z3

  • Fastest and Most Accurate Vintage Pitch-to-MIDI Synthesizer (24-pin Format)
  • Yamaha FM Synthesis
  • Built-in Reverb
  • Built-in Tuner
  • Multi-timbral operation (allowing each string to play a different sound)
  • Easy front-panel access to most frequently used functions
  • Responds only to Master volume commands, ignores all guitar controller information, CV knobs, bender-arm, etc.
  • Foot switch inputs for patch up and down
  • Detailed sound editing only through software
  • Useable as MIDI sound module (disables Guitar Synthesizer input)
  • Synthesizer Off foot switch input
  • Dedicated Hold foot switch input (like Ibanez MC1)
  • Dimensions: 19" (W) 10.875" (D) 1.75" (H)
  • Power Requirements: 24 watts