Boss ME-90 Guitar Processor

Description

The Boss ME‑90 (Expression Edition) takes the best‑selling ME‑series platform and adds expanded real‑time control with a built‑in expression pedal, giving players instant access to wah, volume, pitch, modulation depth, and other assignable parameters. Designed for guitarists who want the flexibility of a multi‑FX unit with the immediacy of stompboxes, the ME‑90 delivers a fully hands‑on workflow with dedicated knobs for every effect category — no menus, no deep diving, just turn and play.

Powered by Boss’s latest processing engine, the ME‑90 includes 11 amp types, IR‑based cabinet simulation, and 60+ effects pulled from the GT‑1000 and Boss’s premium pedal lineup. The seven simultaneous effect blocks (COMP/FX1, OD/DS, AMP, MOD, DELAY, REVERB, FX2) can be arranged in multiple orders, and the Memory/Manual modes let players switch between preset‑based performance and classic stompbox operation.

The built‑in expression pedal unlocks wah, pitch bend, volume, rotary speed, and more, making the ME‑90 EXP a powerful all‑in‑one rig for stage, studio, worship, and home practice. With USB‑C audio, Tone Studio editing, battery or AC power, and rugged Boss construction, it’s a complete guitar ecosystem that fits any pedalboard or gig bag.

Effects & Amp Modeling

• 11 amp types (clean, crunch, boutique, high‑gain, acoustic sim)
• 60+ effects including:
  • Overdrive/Distortion
  • Modulation (chorus, phaser, flanger, tremolo)
  • Delay (digital, analog, tape)
  • Reverb (hall, plate, spring, shimmer)
  • Pitch/Octave
  • Acoustic simulator
• Seven simultaneous effect blocks
• IR‑based cabinet simulation
• Custom IR loading via Boss Tone Studio

Expression Pedal

• Built‑in EXP pedal with assignable functions:

• Wah
• Volume
• Pitch bend
• Modulation depth
• Rotary speed
• Parameter morphing

Performance Modes

• Manual Mode — stompbox‑style control
• Memory Mode — 36 preset slots (18 banks × 2 patches)
• Ultra‑fast switching with spillover for delay/reverb

Connectivity

• USB‑C audio interface for direct recording
• Stereo outputs
• Headphone out
• Aux input
• Send/Return loop
• External footswitch input

Power & Construction

• Runs on 6× AA batteries or AC adapter
• Rugged metal chassis
• Lightweight, gig‑ready design

Dimensions & Weight

• Approx. 7.7 lbs
• Compact footprint for pedalboards and fly rigs