SKU:ME-90B
- All-in-one bass powerhouse with premium BOSS amps and effects
- Intuitive and clear stompbox-style multi-effect with an intuitive button-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 built-in AIRD preamp models including newly developed types
- Dedicated preamp section plus six simultaneous effects categories with multiple variations in each category
- Edit parameters, change preamp and effect types, and more with BOSS Tone Studio
- Eight multifunctional footswitches and an expression pedal with toe switch
- 36 ready-to-use preset memories and 36 user memories for storing custom setups
- Manual mode that replicates a pedalboard workflow and memory mode for switching complete presets
- Blend button to mix the direct bass sound into the processed signal
- Stereo 1/4" line output and mono XLR balanced output with ground lift
- Rear panel switch to optimize 1/4" line output for a bass amp or full-range sound system
- Send/return loop for external pedals
- Lightweight, durable design and colorful status LEDs
- Load up to three user speaker IRs
- Powered by four AA batteries or AC adapter (not included)
- USB-C® connector for communication 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 lets you edit sounds and stream audio from an iOS or Android mobile device
Sound samples
Full description
Introducing the ME-90B, a fluid ME processor packed with professional tools for bassists. Expand your creative reach with 61 effects optimized for bass. Shape your core sound with 10 bass preamps created with our latest AIRD technology. Connect to stage amps, house PA systems, and computers. And with the tangible interface, expression pedal, and direct-access footswitches, you can create and perform in the moment with nothing holding you back.
Hassle-Free Creative Control The ME-90B provides everything a performing bassist needs, accessible via the classic BOSS ME interface for quick stompbox-style operation. Each effect category has independent parameter knobs so you can customize tones instantly. Manual mode provides on/off foot control of each category, while Memory mode lets you recall up to 36 custom multi-effect setups. Each footswitch has a different LED color for easy identification, and it's possible to set all LEDs to glow a fixed color for each mode if desired.
Premium BOSS Effects The ME-90B comes with premium selections from the BOSS bass effects library, organized into six logical sections that can be used simultaneously. Apply essential tone shaping like compressors, pitch effects, and filters. Explore more aggressive textures with drive and synth effects. Expand your sound with modulation, delay, and reverb. And dive into a range of dedicated effects for the built-in expression pedal. There's also a Blend knob to mix in some direct bass sound for clarity, plus a send/return loop to add your favorite stompbox effects.
Solid Basstone A strong fundamental sound is the foundation of any great bass setup. The ME-90B's Preamp/EQ section features ten inspiring preamp types backed by advanced AIRD technology, complete with gain and EQ controls for quick sound adjustments. Express your individual voice with BOSS originals like Natural and Drive Bass. Or call upon authentic models of classic bass amps 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 any playing situation. 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 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 into music production software. And the headphone jack lets you quietly fine-tune your skills while jamming with backing tracks from a computer via USB.
Edit, Customize, and Expand BOSS Tone Studio for Windows and macOS expands your creative reach with the ability to edit tones and swap out some preamp and effect types with alternative choices. You can also organize memories for different gigs and supplement the built-in speaker IRs with three from your own library. When you’re ready for fresh inspiration, log in to 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 cents
-Nominal Input Level
INPUT: -10 dBu
RETURN: -10 dBu
-Maximum Input Level
INPUT: +7 dBu
RETURN: +7dBu
-Input Impedance
INPUT: 1M ohms
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: 1k ohms
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
BANKâ–¼/AMP/EQ switch, BANKâ–²/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,
BLEEDING knot,
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 ADAPTER connector: Dedicated connector
DC IN jack
-Power Supply
Alkaline battery (AA, LR6) x 4
alder
AC adapter
-Current Draw
195mA
- 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
443 (W) x 220 (L) 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
-Accessories
STARTUP GUIDE
Alkaline battery (AA, LR6) x 4
Leaflet "USING THE UNIT SAFELY"
-Options (sold separately)
AC adapter: PSA-S series
Bluetooth(R) Audio MIDI Dual Adapter: BT-DUAL
Carry Bag: CB-ME80,CB-BU10
* 0 dBu = 0.775 Vrms
Couldn't load pickup availability

- All-in-one bass powerhouse with premium BOSS amps and effects
- Intuitive and clear stompbox-style multi-effect with an intuitive button-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 built-in AIRD preamp models including newly developed types
- Dedicated preamp section plus six simultaneous effects categories with multiple variations in each category
- Edit parameters, change preamp and effect types, and more with BOSS Tone Studio
- Eight multifunctional footswitches and an expression pedal with toe switch
- 36 ready-to-use preset memories and 36 user memories for storing custom setups
- Manual mode that replicates a pedalboard workflow and memory mode for switching complete presets
- Blend button to mix the direct bass sound into the processed signal
- Stereo 1/4" line output and mono XLR balanced output with ground lift
- Rear panel switch to optimize 1/4" line output for a bass amp or full-range sound system
- Send/return loop for external pedals
- Lightweight, durable design and colorful status LEDs
- Load up to three user speaker IRs
- Powered by four AA batteries or AC adapter (not included)
- USB-C® connector for communication 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 lets you edit sounds and stream audio from an iOS or Android mobile device
Sound samples
Full description
Introducing the ME-90B, a fluid ME processor packed with professional tools for bassists. Expand your creative reach with 61 effects optimized for bass. Shape your core sound with 10 bass preamps created with our latest AIRD technology. Connect to stage amps, house PA systems, and computers. And with the tangible interface, expression pedal, and direct-access footswitches, you can create and perform in the moment with nothing holding you back.
Hassle-Free Creative Control The ME-90B provides everything a performing bassist needs, accessible via the classic BOSS ME interface for quick stompbox-style operation. Each effect category has independent parameter knobs so you can customize tones instantly. Manual mode provides on/off foot control of each category, while Memory mode lets you recall up to 36 custom multi-effect setups. Each footswitch has a different LED color for easy identification, and it's possible to set all LEDs to glow a fixed color for each mode if desired.
Premium BOSS Effects The ME-90B comes with premium selections from the BOSS bass effects library, organized into six logical sections that can be used simultaneously. Apply essential tone shaping like compressors, pitch effects, and filters. Explore more aggressive textures with drive and synth effects. Expand your sound with modulation, delay, and reverb. And dive into a range of dedicated effects for the built-in expression pedal. There's also a Blend knob to mix in some direct bass sound for clarity, plus a send/return loop to add your favorite stompbox effects.
Solid Basstone A strong fundamental sound is the foundation of any great bass setup. The ME-90B's Preamp/EQ section features ten inspiring preamp types backed by advanced AIRD technology, complete with gain and EQ controls for quick sound adjustments. Express your individual voice with BOSS originals like Natural and Drive Bass. Or call upon authentic models of classic bass amps 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 any playing situation. 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 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 into music production software. And the headphone jack lets you quietly fine-tune your skills while jamming with backing tracks from a computer via USB.
Edit, Customize, and Expand BOSS Tone Studio for Windows and macOS expands your creative reach with the ability to edit tones and swap out some preamp and effect types with alternative choices. You can also organize memories for different gigs and supplement the built-in speaker IRs with three from your own library. When you’re ready for fresh inspiration, log in to 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 cents
-Nominal Input Level
INPUT: -10 dBu
RETURN: -10 dBu
-Maximum Input Level
INPUT: +7 dBu
RETURN: +7dBu
-Input Impedance
INPUT: 1M ohms
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: 1k ohms
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
BANKâ–¼/AMP/EQ switch, BANKâ–²/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,
BLEEDING knot,
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 ADAPTER connector: Dedicated connector
DC IN jack
-Power Supply
Alkaline battery (AA, LR6) x 4
alder
AC adapter
-Current Draw
195mA
- 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
443 (W) x 220 (L) 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
-Accessories
STARTUP GUIDE
Alkaline battery (AA, LR6) x 4
Leaflet "USING THE UNIT SAFELY"
-Options (sold separately)
AC adapter: PSA-S series
Bluetooth(R) Audio MIDI Dual Adapter: BT-DUAL
Carry Bag: CB-ME80,CB-BU10
* 0 dBu = 0.775 Vrms