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 with 24-bit AD/DA and 32-bit floating point processing, 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.

Features

• All-in-one guitar processor with premium BOSS amps and effects
• Easy stompbox-style sound creation with an intuitive knob-based interface
• Superior sound quality with 24-bit AD/DA, 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
• Optional Bluetooth Audio MIDI Dual Adaptor allows you to edit sounds and stream audio from an iOS or Android mobile device
• 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 : 24 bits
• Processing : 32-bit floating point
• Effects : 97 Types
• Memories36 : (User) + 36 (Preset)
• Phrase Loop38 : sec. (MONO)
• Tuner Internal Detection : +/-0.1 cent
• Nominal Input Level : INPUT: -10 dBu RETURN: -10 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 : ImpedanceOUTPUT (L/MONO, R): 10 k ohms or greater PHONES : 44 ohms or greater SEND: 10 k ohms or greater
• Controls : BANK DOWN/AMP switch, BANK UP/EQ switch, CTL/REV switch, MEMORY/MANUAL  witch, 1/COMP switch, 2/OD/DS switch,3/MOD switch, 4/DELAY switch, PEDAL FX switch,Gt. MP/LINE switch, POWER switch,EXIT button, WRITE button, CTL button, EDIT button,PREAMP TYPE knob, AIN knob, BASS knob, MIDDLE knob,TREBLE knob, LEVEL knob,REVERB knob,COMP/FX1 TYPE knob, USTAIN/SENS/-1OCT knob,ATTACK/TONE/-2OCT/DEPTH knob, LEVEL/PEAK/DIRECT knob,OD/DS TYPE knob, DRIVE knob, TONE knob, LEVEL knob,MOD TYPE knob, RATE/KEY knob, DEPTH/HARMONY knob,E.LEVEL/RESONANCE knob,DELAY TYPE knob, TIME knob, FEEDBACK knob, E.LEVEL nob,OUTPUT LEVEL knob, PEDAL FX TYPE knob,PEDAL FX pedal
• Display : 7 segments, 2 characters (LED)
• Connectors : 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 or 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.