The Boss GT-1000 features over 116 high-quality onboard effect types derived from flagship Boss 500-series and MDP pedals. [1, 2]Available Effect Blocks and CategoriesIn a single patch on the GT-1000 and GT-1000CORE, you can run up to 24 simultaneous effect blocks. The available effect categories and types include: [1, 2]

• Compressor / Dynamics: Standard dynamics, multi-band MDP compressor, limiters, touch wah, and slow gear.
• Overdrive / Distortion: Dozens of classic and modern models including Blues Driver, DS-1, Metal Zone, Centa OD, and HM-2.
• Preamps / Amplifiers: AIRD-powered guitar and bass preamp models.
• EQ & Noise Suppressor: Flexible parametric/graphic equalizers and dedicated noise gate blocks.
• Delay: Digital delay, tape echo, reverse, analog delays (DM-2 style), space echo, and master delay types like Bin Drum Echo and Tape Echo Px.
• Reverb: High-resolution algorithms adapted from the RV-500.
• Modulation (FX block): Chorus, flanger, phaser, tremolo, vibrato, rotary, univibe, auto-riff, and overtone.
• Pedal FX & Control: Foot volume, expression pedal assignments, and wah.
• Looper: Phrase loop supporting up to 38 seconds in mono and 19 seconds in stereo. [1, 2, 3, 4, 5, 6]