Boss ME-90 Guitar Effects Processor

STARTUP GUIDE
Alkaline Battery (AA, LR6) x4
Leaflet “USING THE UNIT SAFELY”

- 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
- 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

- Weight: 2.930kg
- Height: 545mm
- Width: 276mm
- Depth: 120mm

- 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
- Memories: 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
Controls:
- 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,
- 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 knob,
- 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.
- Dimensions: 443 (W) x 220 (D) x 67 (H) mm / 17-1/2 (W) x 8-11/16 (D) x 2-11/16 (H) inches
- Maximum height: 443 (W) x 220 (D) x 93 (H) mm / 17-1/2 (W) x 8-11/16 (D) x 3-11/16 (H) inches
- Weight (including battery): 2.9 kg / 6 lbs 7 oz