BOSS ME-90B
What it is
The ME-90B is a digital multi-effects processor announced by BOSS on April 18, 2024. BOSS describes it as a free-flowing processor with 61 effects optimized for bass and 10 bass preamp types based on its AIRD technology. It is operated through eight footswitches and an expression pedal with a toe switch, with knobs for direct parameter adjustment. The unit is distinguished from older BOSS bass ME units such as the ME-6B, ME-20B, and ME-50B by its amp models, patch switching, and more flexible routing, according to Bass Magazine. Bass Magazine also compares it with BOSS GT-series units, saying the GT-6B and GT-10B focus on high-end features and complex routing while the ME-90B aims to simplify the experience. Reviewers have also compared it with the Zoom B6, Line 6 HX Stomp, and Tech 21 Bass Fly Rig. Several sources note that BOSS sells a non-bass ME-90, which lacks a DI output, so the bass model should be identified carefully. The ME-90B is a 2024 model. Its launch price was listed at $399.99.
Specifications
- Effects
- 93 types listed; BOSS states 61 effects are optimized for bass
- Memories
- 36 user and 36 preset
- Preamps
- 10 AIRD preamp types, including Natural and Drive Bass originals, classic bass amp models, an Acoustic type, and an EQ-only option
- Converters and processing
- 24-bit AD, 32-bit DA, 32-bit floating-point processing, 48 kHz sampling rate
- Phrase loop
- 38 seconds, mono
- Tuner accuracy
- ±0.1 cent
- Inputs
- 1/4-inch INPUT and RETURN jacks, 1 MΩ impedance each
- Outputs
- 1/4-inch OUTPUT L/MONO and R, 1/4-inch SEND, stereo headphone jack, XLR balanced output with ground lift; 1/4-inch outputs switchable between amp and line-level optimization and selectable mono or stereo
- Other connections
- USB Type-C for BOSS Tone Studio and audio recording, dedicated Bluetooth adaptor connector, DC IN jack
- Power
- Four AA alkaline batteries or AC adaptor (PSA adaptor sold separately); BOSS estimates about 6 hours on alkaline batteries under continuous use
- Size and weight
- 443 × 220 × 67 mm (maximum height 93 mm); 2.9 kg (6 lb 7 oz) including batteries
- Expression pedal
- Built in, with a toe switch
- Software
- BOSS Tone Studio for Windows and macOS; mobile editor for iOS and Android via the optional Bluetooth Audio MIDI Dual Adaptor
How it's used
Players use the ME-90B as a single-unit bass rig to replace multiple pedals, for live performance and rehearsal, for direct recording through USB or the XLR output, and for quiet practice with headphones and USB backing tracks. Reviewers highlight compression, overdrive, modulation, and delay, along with the Slicer and Analog Delay effect variations.
Suggested usage
Choose a mode first
Manual mode gives each footswitch on/off control of an effect category. Memory mode recalls one of 36 multi-effect setups.
Save before powering off
One Zzounds reviewer notes that changes made in Manual mode must be saved before the unit is turned off.
Use the editor for reordering
Bass Magazine and BOSS point to BOSS Tone Studio for changing preamp and effect types, arranging effect order, and organizing memories.
Check tuning for octave effects
Bass Magazine reports that octave tracking can be glitchy when the bass is tuned below A.
Expect to adjust synth patches
Bass Magazine says the synth sounds need some tweaking.
Add user IRs
BOSS says the onboard speaker IRs can be supplemented with three user-supplied IRs.
Set the output for the destination
Set the rear output switch to amp or line depending on whether the signal feeds a bass amp or a full-range system.
Use the ground lift when needed
Bass Magazine highlights the switchable ground lift on the XLR DI output.
Try the EQ-only and Acoustic types
BOSS intends the EQ-only type for clean DI and the Acoustic type for acoustic-electric and upright pickups.
Try the Blend knob
BOSS describes the Blend knob as a way to mix in some direct signal for clarity.
What reviewers said
- Bass Magazine
The reviewer finds the unit strong for live use, praises the compression and preamp/EQ options, and names the Slicer and Analog Delay as favorites. Weak points include the reverbs, the synth patches, and octave tracking below A. The unit is described as easy to adjust without menu diving.
- Bass Gear Magazine (Bassic Review)
The reviewer calls the Studio Bass preamp exceptional and singles out the pitch-based Overtone effect. At just under $400 street, the reviewer calls it an easy recommendation for players who use two or more of its features, and finds the poly octave less appealing than the polyphonic mode of BOSS's OC-3.
- Is This Gear Good
The reviewer finds the bass delay and reverb enjoyable, reports no poor-sounding effects, and describes the Memory and Manual modes in detail.
- Sweetwater customer reviews
A player who previously used a BOSS GT-10B praises the build quality and quick setup for a fly rig.
- Zzounds customer reviews
Customer ratings average 4 out of 5, with sound and quality often rated highly. One reviewer gave 2.5 out of 5 and was disappointed, for reasons not verified.