BOSS GT-3 Guitar Effects Processor

• Floor-based guitar effects processor/preamp with 32 killer effects
• COSM™ preamp with vintage and modern guitar amp emulations, speaker cabinet and mic simulation
• New Auto Riff triggers complete musical riffs from a single note
• New Pickup Simulator produces fat humbucking sounds from a single-coil guitar or vice versa
• Slicer and Feedbacker effects for interesting rhythmic/sustained sounds
• Includes 12 analog distortion and overdrive effects
• New EZ Edit mode for quick effects adjustment with four easy steps
• New acoustic-electric guitar effects, including Anti-Feedback, Bi-Stereo Chorus (2 x 2), and Acoustic-Electric preamp setting
• Sturdy, all-metal chassis built to withstand years of rigorous use
• High-quality 24-bit A/D and 20-bit D/A converters for great sound
  

(boss.info).