Boss ME-90B Bass Multi-Effects Pedal
Create and Perform in the Moment
Introducing the ME-90B, a free-flowing ME processor filled with pro performance tools for bassists. Extend your creative range with 61 effects optimized for bass. Shape your core tone with 10 bass preamps crafted with their latest AIRD technology. Connect to stage amps, house PA systems, and computers. And with the hands-on interface, expression pedal, and direct-access footswitches, you can create and perform in the moment with nothing to slow you down.
For optimal performance, stay up to date with the current ME-90B system software.
FEATURES
- All-in-one bass 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 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
- Blend knob for mixing in the direct bass sound
- Stereo 1/4-inch outputs and mono XLR balanced output with ground lift switch
- Rear-panel switch to optimize the 1/4-inch audio outputs for a bass amp or full-range sound system
- Send/return loop for external pedals
- Light, durable design and colorful status LEDs
- 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
Download “BOSS TONE STUDIO for ME-90B” for Windows/macOS
Download “BTS for ME-90B” for iOS
Download “BTS for ME-90B” for Android
Effortless Creative Control
The ME-90B delivers everything a performing bassist needs, accessed via the classic BOSS ME interface for fast stompbox-style operation. Each effect category features independent parameter knobs, allowing you to tweak tones instantly. Manual mode provides on/off footswitch control of each category, while Memory mode lets you call up 36 custom multi-effect setups. Every footswitch has a different LED color for easy identification, and it’s possible to set all LEDs to light in a fixed color for each mode if desired.
Premium BOSS Effects
The ME-90B comes stocked with premium selections from the BOSS bass effects library, organized into six logical sections that can be used simultaneously. Apply essential tone shapers like compressors, pitch effects, and filters. Explore more aggressive textures with drive and synth effects. Expand your sound with modulation, delays, and reverbs. And dive into a variety of dedicated effects for the onboard expression pedal. There’s also a Blend knob to mix in some direct bass sound for clarity, plus a send/return loop to patch in your favorite stompbox effects.
Solid Bass Tone
A strong fundamental sound is the foundation of any great bass rig. The ME-90B’s Preamp/EQ section features ten inspiring preamp types backed by advanced AIRD technology, complete with gain and EQ controls for rapid sound adjustment. Express your individual voice with BOSS originals like Natural and Drive Bass. Or call up authentic models of classic bass amplifiers from vintage to modern. There’s also an Acoustic type optimized for acoustic-electric and upright bass pickups, plus an EQ-only option for clean DI tones.
Perform, Practice, and Record
With its versatile connectivity and compact, battery-powered design, the ME-90B is ready for every playing scenario. The 1/4-inch outputs support mono or stereo operation, with quick optimization for stage amps or line-level devices via a rear-panel switch. There’s also an XLR jack with a ground lift for sending a balanced DI signal to a house PA. The ME-90B’s preamps and effects provide studio-quality sound for direct USB recording in music production software. And with the headphones jack, you can quietly hone your chops while jamming with backing tracks from a computer over USB.
Edit, Customize, and Expand
BOSS Tone Studio for Windows and macOS extends your creative range with the ability to edit tones and change out some preamp and effect types with alternate selections. You can also organize memories for different gigs and supplement the onboard speaker IRs with three from your own library. When you’re ready for fresh inspiration, log onto BOSS Tone Exchange to swap Livesets with the worldwide ME-90B community. And with the optional Bluetooth® Audio MIDI Dual Adaptor, you can stream music from a mobile device and wirelessly shape tones using the BTS editor app for iOS and Android.
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,
BLEND 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
PEDAL FX pedal - 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. - Accessories: STARTUP GUIDE
Alkaline battery (AA, LR6) x 4
Leaflet "USING THE UNIT SAFELY" - Options (sold separately): AC adaptor: PSA-S series
Bluetooth(R) Audio MIDI Dual Adaptor: BT-DUAL
Carry Bag: CB-ME80,CB-BU10 - SIZE AND WEIGHT: Width: 443 mm, 17-1/2 inches |Depth: 220 mm, 8-11/16 inches |Height: 67 mm, 2-11/16 inches | Maximum Height: 93 mm, 3-11/16 inches | Weight(including battery): 2.9 kg, 6 lb 7 oz
* 0 dBu = 0.775 Vrms *The specifications are subject to change without notice.
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