BOSS ME-90B Bass Multi-Effects Processor (ME-90B)

The BOSS ME-90B is a professional all-in-one bass multi-effects processor designed to provide complete control over your bass tone in a rugged, easy-to-use floor unit. Combining 10 AIRD preamp models, 61 bass-optimized effects, a premium IR loader, an effects loop, and extensive connectivity, the ME-90B gives bassists the tools needed for live performance, recording, rehearsal, and practice.

Following the intuitive design of the ME series, the ME-90B uses dedicated knobs and stompbox-style controls so players can create and adjust sounds without complicated menu navigation. Eight color-coded footswitches and an integrated expression pedal with toe switch provide hands-on control over effects, patches, and parameters during performance.

Key Features

• Professional all-in-one bass multi-effects and preamp processor
• 10 AIRD preamp models provide a wide range of bass tones
• AIRD technology delivers responsive dynamics and natural playing feel
• Preamp section includes dedicated EQ controls for detailed tone shaping
• 61 studio-grade effects optimized for bass frequencies
• Effects include compression, pitch, modulation, filtering, overdrive, distortion, synth, delay, and reverb
• Dedicated effect sections provide quick and intuitive sound creation
• Built-in expression pedal provides real-time control over effects and parameters
• Integrated toe switch allows quick activation of expression-controlled effects
• Eight multifunction footswitches with color-coded LEDs
• Manual mode provides traditional pedalboard-style operation
• Memory mode allows complete patches to be recalled instantly
• Global Blend control mixes the direct bass signal with processed tones for improved clarity and definition
• Premium IR loader supports up to three user speaker cabinet impulse responses
• Effects loop allows external pedals to be integrated into the signal chain
• Ground Lift-equipped XLR output helps reduce unwanted ground noise
• Switchable Amp/Line stereo 1/4-inch outputs support both amplifier and direct-to-PA setups
• Headphone output provides convenient silent practice and monitoring
• USB-C connectivity supports recording, playback, and computer integration
• Compatible with BOSS Tone Studio for detailed editing and patch management
• BOSS Tone Exchange provides access to additional presets, Livesets, and professional sound collections
• 24-bit AD/DA conversion and 32-bit floating-point processing
• 48kHz sampling rate for high-quality audio performance
• Rugged floor-based design suitable for stage and studio use
• Powered by four AA batteries or an optional AC adapter
• Ideal for bassists performing live, recording in the studio, practicing at home, or building complete portable bass rigs