This second hand bass pedal is in great condition

The Boss ME‑90B is Boss’s latest bass‑specific multi‑effects unit, and it’s easily one of the strongest entries in their long‑running ME series. It blends old‑school stompbox workflow with modern digital power, offering a huge range of bass‑tuned effects, amp models, and performance features  all in a lightweight, gig‑ready package.

If you’ve ever wanted the flexibility of a full pedalboard without the weight, wiring, or cost, the ME‑90B is designed exactly for that.

Build & Design

Boss has always been known for rugged hardware, and the ME‑90B continues that tradition. According to Bass Gear Magazine, it’s lightweight and surprisingly compact considering how much it packs in.

Key design features:

• Eight multifunction footswitches
• Built‑in expression pedal
• Dedicated knobs for each effect block (no menu diving)
• Sturdy metal chassis
• Battery or PSU operation

The layout is intuitive: each effect block has its own physical controls, giving it the feel of a traditional pedalboard rather than a digital menu system.

 Effects & Sound Quality

This is where the ME‑90B really shines. It includes 61 bass‑tuned effect algorithms and over 60 effect types across 11 FX blocks.

Effect categories include:

• Compression
• Overdrive & distortion
• Amp modelling
• Modulation (chorus, flanger, phaser, etc.)
• Octave & pitch effects
• Delay & reverb
• EQ
• Noise suppression
• Pedal FX (wah, whammy‑style pitch shifting)

The audio engine uses 24‑bit AD/DA conversion and 44.1 kHz sampling, giving it clean, modern sound quality with plenty of headroom.

• Capable of warm Ampeg‑style tones and clean GK‑style punch
• Octave, fuzz, and drive effects are particularly strong
• Modulation and ambience effects sound polished and musical
• Noise levels are impressively low

The amp models are a highlight , they give you gig‑ready tones without needing a full rig.

Usability

Boss designed the ME‑90B to be fast and hands‑on, not a deep‑menu device.

Two main modes:

• Manual Mode – behaves like a pedalboard
• Memory Mode – switch between patches for songs/sets

You also get:

• 36 user patches + 36 presets
• Expression pedal for volume, wah, pitch, or assigned parameters
• Phrase sampler
• USB audio interface functionality (great for recording)
• Boss Tone Studio desktop/mobile editor for deeper editing

This makes it equally suited for live use, home practice, and recording

• Easy to dial in tones quickly
• Great for players who want multiple sounds without a huge pedalboard
• Expression pedal adds real performance flexibility
• Patch switching is smooth and quiet
• Works well as a standalone rig or in front of an amp

You’re effectively getting:

• A full pedalboard
• Amp modelling
• A USB audio interface
• A looper
• A tuner
• An expression pedal

Pros

• Huge range of bass‑specific effects
• Hands‑on, pedalboard‑style workflow
• Lightweight and gig‑ready
• Excellent amp models
• USB audio interface built in
• Great value for the feature set

The Boss ME‑90B is one of the best all‑in‑one bass multi‑effects units available today. It’s powerful, intuitive, and packed with genuinely useful tones — not filler. Whether you’re a gigging bassist who wants a compact, reliable rig, or a home player who wants maximum versatility without a pile of pedals, the ME‑90B is an easy recommendation.