Boss ME-90B Bass Multi Effects Pedal

The BOSS ME-90B is a free-flowing ME processor filled with pro performance tools for bassists. Featuring 61 effects optimized for bass and 10 bass preamps crafted with BOSS's AIRD technology.

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    Boss ME-90B Bass Multi Effects Pedal

    The Boss ME-90B all-in-one processor puts premium performance tools right at your feet, combining the hands-on feel of classic stompboxes with the power of modern amp modeling. It’s an ideal effects tool for both stage and studio, delivering everything from vintage growl to pristine modern punch, all without the need to haul heavy gear to the gig.

    Boss ME-90B Hands-On, Head-Up Control

    Hands-On, Head-Up Control

    Menu diving is a massive drag when you just want to jam. The ME-90B fixes that frustration with an intuitive, knob-heavy interface that feels wonderfully familiar. You can reach down, twist a dial, and instantly hear the grit growl or the chorus shimmer. It keeps your head in the groove and your hands firmly on the bass.

    • Stompbox Simplicity: Independent parameter knobs for each effect category mean you dial in your dream tone as easily as tweaking a traditional analog pedal.
    • Dual Duty Modes: Kick into Manual mode to toggle individual effects on the fly, or stomp over to Memory mode to unleash 36 custom multi-effect masterpieces instantly.
    • Color-Coded Clarity: Every footswitch rocks a radiant, customizable LED color, so you always know exactly what you’re stepping on in a dark, sweaty club.

    Tonal Processing at Your Tips

    A bass rig is only as brilliant as its foundational tone. The ME-90B brings the thunder with a massive library of low-end luxury, packing decades of BOSS heritage into one heavy-hitting hub. From silky smooth compression to aggressive, floor-shaking synth textures, this pedal provides the paint for your sonic canvas.

    • Advanced AIRD Preamps: Ten inspiring preamp models — ranging from vintage tube warmth to modern punch — give you a rock-solid sonic spine for any genre.
    • 61 Premium Effects: Dive into a deep pool of pitch shifters, filters, drives, and delays, all specifically sculpted to keep your low frequencies tight and focused.
    • Direct Blend & Loop: Mix in your clean DI signal with the dedicated Blend knob for ultimate clarity, or patch your favorite boutique dirt pedal into the send/return loop.
    Boss ME-90B Tonal Processing at Your Tips
    Boss ME-90B Stage, Studio, and Ready for Anything Else

    Stage, Studio, and Ready For Anything Else

    Gigging bassists need gear that adapts to the environment. The ME-90B is ready to conquer massive festival stages, quiet bedroom practice sessions, and critical studio recordings. It’s lightweight, rugged, and ridiculously well-connected.

    • Comprehensive Connectivity: Feed your stage amp via stereo 1/4-inch outputs and send a pristine, balanced DI signal straight to the sound engineer with the mono XLR output.
    • USB-C Studio Hub: Plug into your computer to record directly into your favorite DAW, jam along with backing tracks, or deep-dive into the BOSS Tone Studio app.
    • Bluetooth & Battery Power: Run on four AA batteries for ultimate portability, and snap on the optional Bluetooth adaptor to edit patches wirelessly from your phone.

    The Bottom Line

    The Boss ME-90B is what happens when you cram a premium pedalboard and a truckload of legendary bass amps into a gig-bag-friendly footprint. It honors the visceral thrill of turning physical knobs while offering the boundless brainpower of modern processing. It’s the definitive multi-effects solution for players who want to dominate the low end without the heavy lifting.

    Boss ME-90B The Bottom Line

    Frequently Asked Questions about the Boss ME-90B

    Is the Boss ME-90B good for beginners?

    Yes, its intuitive knob-based interface makes it incredibly easy for beginners to dial in great tones without complicated menu diving.

    Can I use the ME-90B without an amplifier?

    Absolutely. The balanced XLR output lets you connect directly to a PA system or recording interface, and the dedicated headphone jack is perfect for silent practice.

    Does the Boss ME-90B have a built-in looper?

    No, the ME-90B focuses purely on delivering premium preamps and world-class effects rather than loop recording functionality.

    How do I power the ME-90B?

    You can power it using four AA batteries for total wireless portability, or with an optional BOSS AC adaptor for continuous, worry-free use on stage.

    Can I load custom IRs into the ME-90B?

    Yes, you can easily load up to three of your own custom user speaker impulse responses using the free BOSS Tone Studio software.

    Boss ME-90B Bass Multi Effects Pedal Features:

    • Superior sound quality with 24-bit AD and 32-bit DA conversion, 32-bit floating-point processing, and 48 kHz sampling rate
    • 61 effects from the BOSS bass effects library
    • Ten onboard AIRD preamp models including newly developed types
    • Dedicated preamp section plus six simultaneous effect categories with multiple types to choose from
    • Edit parameters, swap out preamp and effect types, and more with BOSS Tone Studio
    • Eight multi-function footswitches and an expression pedal with toe switch
    • 36 ready-to-play preset memories and 36 user memories for storing custom setups
    • Manual mode for pedalboard-style operation and Memory mode for switching complete setups
    • Stereo 1/4-inch outputs and mono XLR balanced output with ground lift switch
    • Send/return loop for external pedals
    • Load up to three user speaker IRs
    • Powered via four AA batteries or optional AC adaptor
    • USB-C connector for communicating with BOSS Tone Studio and audio recording/playback with music production software
    • Download and share ME-90B Livesets on BOSS Tone Exchange
    • Optional Bluetooth Audio MIDI Dual Adaptor allows you to edit sounds and stream audio from an iOS or Android mobile device

    Boss ME-90B Bass Multi Effects Pedal Specifications

    Boss ME-90B Bass Multi Effects Pedal Specifications
    Product Specifications

    Boss ME-90B Bass Multi Effects Pedal Specifications

    • Sampling Frequency: 48 kHz
    • AD Conversion:
      • 24 bits + AF method
      • AF method (Adaptive Focus method) This is a proprietary method from Roland & BOSS that vastly improves the signal-to-noise (SN) ratio of the AD converters.
    • DA Conversion: 32 bits
    • Processing: 32-bit floating point
    • Effects: 93 Types
    • Memories: 36 (User) + 36 (Preset)
    • Phrase Loop: 38 sec. (MONO)
    • Internal Tuning Detection Accuracy: ±0.1 cent
    • Nominal Input Level:
      • INPUT: -10 dBu
      • RETURN: -10 dBu
    • Maximum Input Level:
      • INPUT: +7 dBu
      • RETURN: + 7dBu
    • Input Impedance:
      • INPUT: 1 M ohm
      • RETURN: 1 M ohm
    • Nominal Output Level:
      • OUTPUT L/MONO R: -10 dBu
      • PHONES: -10 dBu
      • SEND: -10 dBu
      • BALANCED OUTPUT: -10 dBu
    • Output Impedance:
      • OUTPUT L/MONO, R: 1 k ohm
      • PHONES: 44 ohms
      • SEND: 1 k ohm
      • BALANCED OUTPUT: 600 ohms
    • Recommended Load Impedance:
      • OUTPUT L/MONO, R: 10 k ohms or greater
      • PHONES: 44 ohms or greater
      • SEND: 10 k ohms or greater
      • BALANCED OUTPUT: 600 ohms or greater
    • Controls:
      • BANK/AMP/EQ switch, BANK?/MOD switch, CTL/BLEND switch,
      • MEMORY/MANUAL switch, 1/COMP switch, 2/FILTER switch,
      • 3/DRV/SYN switch, 4/DLY/REV switch, PEDAL FX switch,
      • GND LIFT switch, AMP/LINE switch, POWER switch,
      • EXIT button, WRITE button, CTL button, EDIT button,
      • PREAMP TYPE knob, BASS knob, MIDDLE knob, TREBLE knob, GAIN knob, LEVEL knob,
      • MOD TYPE knob, TYPE knob, RATE/TIME knob, DEPTH/DUTY/FB knob, E.LEV/RESO knob,
      • BLEMD knob,
      • COMP/FX1 TYPE knob, SUSTAIN/LOW/-1OCT knob, ATTACK/HIGH/-2OCT knob, LEVEL/DIRECT knob,
      • FILTER/FX2 TYPE knob, SENS/RATE/KEY knob, TONE/DEPTH/HRM knob, PEAK/LEVEL/RESO knob,
      • DRIVE/SYNTH TYPE knob, DRIVE knob, TONE knob, LEVEL knob,
      • DLY/REV TYPE knob, TIME knob, FEEDBACK/TONE knob, E.LEVEL knob, OUTPUT LEVEL knob, PEDAL FX TYPE knob,
    • Display:
      • 7 segments, 2 characters (LED)
      • Tuning guides (LED)
    • Connectors:
      • INPUT jack, OUTPUT (L/MONO, R) jacks, SEND jack, RETURN jack: 1/4-inch phone type
      • BALANCED OUTPUT jack: XLR type
      • PHONES jack: Stereo miniature phone type
      • USB COMPUTER port: USB Type-C(R)
      • Bluetooth ADAPTOR connector: Dedicated connector
      • DC IN jack
    • Power Supply: Alkaline battery (AA, LR6) x 4 or AC adaptor
    • Current Draw: 195 mA
    • Expected Battery Life Under Continuous Use:
      • Alkaline battery: Approximately 6 hours
      • This can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use.
    • Dimensions (W x L x H): 443 x 220 x 67 mm / 17-1/2" x 8-11/16" x 2-11/16"
    • Maximum Height (W x D x H): 443 x 220 x 93 mm / 17-1/2" x 8-11/16" x 3-11/16"
    • Weight (Including Battery): 2.9 kg / 6 lbs 7 oz
    • Accessories:
      • STARTUP GUIDE
      • Alkaline battery (AA, LR6) x 4
      • Leaflet "USING THE UNIT SAFELY"
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