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The BOSS ME series has been a favorite of performing guitarists for over three decades, combining multi-effects power with intuitive hands-on control for crafting tones in seconds. The ME-90 is the most advanced ME model to date, offering exceptional audio quality, flagship-grade AIRD amp models, IR loading, an effects loop, and more. Compact, battery-powered, and filled with premium BOSS tones, this versatile all-in-one processor makes it easy to build customized sound setups for every playing situation.


Standard Features

  • All-in-one guitar processor with premium BOSS amps and effects
  • Easy stompbox-style sound creation with an intuitive knob-based interface
  • Exceptional audio quality with 24-bit AD and 32-bit DA conversion, 32-bit floating-point processing, and 48 kHz sampling rate
  • Eleven onboard AIRD amp models and 60 different effects derived from the flagship GT-1000
  • Dedicated amp section plus seven simultaneous effect categories with multiple types to choose from
  • Edit parameters, swap out amp and effect types, and more with BOSS Tone Studio
  • Eight multi-function footswitches and a newly redesigned expression pedal with toe switch
  • 36 ready-to-play preset patches and 36 user patches for storing custom setups
  • Manual mode for pedalboard-style operation and Memory mode for switching complete patch setups
  • Rear-panel switch to optimize the audio outputs for a guitar amp or full-range sound system
  • Load up to three user speaker IRs with the ME-90 IR Loader software for Windows/macOS
  • Send/return loop for external pedals
  • Light, durable design and colorful status LEDs
  • 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-90 Livesets at 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-90 multi-effects board

SKU: me90

    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 and DA converters.

    DA Conversion

    32 bits


    32-bit floating point


    97 Types


    36 (User) + 36 (Preset)

    Phrase Loop

    38 sec. (MONO)

    Tuner Internal Detection

    +/-0.1 cent

    Nominal Input Level

    INPUT: -10 dBu
    RETURN: -10 dBu

    Maximum Input Level

    INPUT: +7 dBu
    RETURN: +7 dBu

    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

    Output Impedance

    OUTPUT (L/MONO, R): 1 k ohm
    PHONES: 44 ohms
    SEND: 1 k ohm

    Recommended Load Impedance

    OUTPUT (L/MONO, R): 10 k ohms or greater
    PHONES: 44 ohms or greater
    SEND: 10 k ohms or greater


    BANK DOWN/AMP switch, BANK UP/EQ switch, CTL/REV switch,
    MEMORY/MANUAL switch, 1/COMP switch, 2/OD/DS switch,
    3/MOD switch, 4/DELAY switch, PEDAL FX switch,
    Gt. AMP/LINE switch, POWER switch,

    EXIT button, WRITE button, CTL button, EDIT button,

    PREAMP TYPE knob, GAIN knob, BASS knob, MIDDLE knob,
    TREBLE knob, LEVEL knob,
    REVERB knob,
    COMP/FX1 TYPE knob, SUSTAIN/SENS/-1OCT knob,
    OD/DS TYPE knob, DRIVE knob, TONE knob, LEVEL knob,
    MOD TYPE knob, RATE/KEY knob, DEPTH/HARMONY knob,
    DELAY TYPE knob, TIME knob, FEEDBACK knob, E.LEVEL knob,

    PEDAL FX pedal


    7 segments, 2 characters (LED)


    INPUT jack, OUTPUT (L/MONO, R) jacks, SEND jack, RETURN jack: 1/4-inch phone 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
    AC adaptor

    Current Draw

    190 mA

    Expected battery life under continuous use

    Alkaline battery: Approximately 6.5 hours
    * This can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use.


    Alkaline battery (AA, LR6) x 4

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