The BOSS ME-25 is a compact guitar multi-effects processor featuring COSM amp modeling, an intuitive sound library, and USB connectivity.

Key Specifications

• AD/DA Conversion: 24-bit
• Sampling Frequency: 44.1 kHz
• Memory Patches: 60 user memories + sound library presets
• Phrase Looper: Up to 38 seconds of recording time
• Power Supply: DC 9V via six AA dry batteries (R6/LR6) or optional BOSS PSA series AC adaptor
• Current Draw: 150 mA

Effects and Amp Models

• COMP/FX: Compressor, Touch Wah, Acoustic Simulator
• OD/DS: Boost, OD-1, T-Scream, Blues, Dist, Classic, Modern, Metal, Core, Fuzz
• Preamp (COSM): Clean, Twin, Tweed, VO Drive, BG Lead, MS Vintage, MS Modern, 5150 Drive, R-Fier, Ultra Metal
• Modulation: Chorus, Phaser, Flanger, Rotary, Uni-V, Tremolo, Harmonist, Octave
• Delay: Variable settings from 1ms up to 6000ms with Tap Tempo
• Reverb: Room, Hall
• Pedal FX: Wah, +1 Octave, -1 Octave, Freeze

Hardware and Connections

• Control Panel: 3 footswitches, expression pedal, 4 control knobs, 9 backlit buttons, and an LED display
• Inputs/Outputs: 1/4-inch guitar input, stereo 1/4-inch outputs (usable as mono/headphones jack), and a stereo AUX-in (1/8-inch mini-jack)
• Computer Interface: USB 2.0 port for audio streaming and direct recording