Boss Guitar Effects Guide Book Vol. 14-15 (1999-2000):

The GT-3 Guitar Effects Processor takes the professional-quality guitar effects and killer COSM-based preamp of the flagship GT-5 and places them in a sturdy, compact pedal board with an affordable price. With an amazingly flexible preamp section and 32 onboard effects—including new Aito Riff, Acoustic effects and a Pickup Simulator — the GT-3 opens the doors to a whole new world of guitar processing power.

List Of Effects

GT-3 Guitar Effects Processor
  • ACOUSTIC GUITAR SIMULATOR
  • SLOW GEAR
  • ANTI FEEDBACK
  • FEEDBACKER
  • PICKUP SIMULATOR
  • TREMOLO/PAN
  • COMPRESSOR
  • LIMITER
  • PEDAL WAH
  • AUTO WAH
  • OVERDRIVE
  • DISTORTION
  • PREAMP
  • SPEAKER SIMULATOR
  • EQUALIZER
  • HARMONIST
  • FLANGER
  • PHASER
  • AUTO RIFF
  • 2X2 CHORUS
  • SHORT DELAY
  • HUMANIZER
  • VIBRATO
  • GiTAR SYNTH
  • RING MODULATOR
  • SLICER
  • DELAY
  • CHORUS
  • REVERB
  • NOISE SUPPRESSOR
  • FOOT VOLUME
  • Floor-based guitar effects processor/preamp with 32 killer effects and ultra-flexible COSM guitar preamp simulation.
  • Includes 11 analog distortion and overdrive effects plus external OD/DS connection, as well as chorus, delay, reverb, flange, tremolo, harmonist, and more,
  • Functions and effects for acoustic-electric guitars, including Anti-Feedback, Bi-Stereo Chorus, and Acoustic-Electric preamp setting.
  • New Auto Riff feature triggers complete musical riffs from a single note. Pickup Simulator produces fat humbucking sounds from a single-coil guitar.
  • New EZ Edit mode allows for very quick effects adjustment using only four parameters.