
Zoom B1 FOUR Bass Effects Pedal, 9 Amp Models, 70 Onboard Effects, Looper, Built-in Drum Machine
Zoom B1 FOUR Bass Effects Pedal
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Bass Multi-effects Processor
Zoom - 'B1 Four'

Bass Multi-effects Pedal Zoom’s ‘B1 Four’ is a powerful bass multi-fx, carefully designed to take your low end to all new heights with 60 effects, 9 amp models, looper functionality and a drum machine. Users are also handed full access to Zoom’s ‘Guitar Lab’ software, featuring an extensive selection of downloadable artist patches and fx. Craft your own signature sound with a vast selection of 60 modern/classic bass effects, such as octaver, chorus and bass synth.
9 AmpsAmp Modeling
60No of Effects
30 secsLooper
Amazing Features
• B1 Four offers over 70 built-in effects
• 9 amp models for simulating classic rigs
• Looper for recording up to 30 seconds / 64 beats of CD-quality audio
• 50 memory locations for storing user-created patches
It's Jam Time...

68 drum patternsThe ’B1 Four’ features an intelligent drum machine, allowing you to freely jam along to 68 various rhythms, in a selection of time signatures. For the live scenario, there are 2 performance modes onboard to enable you to select patches and effects with minimal fuss. The ‘B1 Four’ is powered via four AA batteries, or, the optional ‘AD-16’ AC adapter, or even via USB!
killer features to elevate your performance Zoom’s ‘B1 Four’ is packing so many features into its sleek chassis, it’s almost hard to believe! Each detail of this fantastic multi-fx was designed to elevate your performance, push your creativity even further and add some real flair to your sound. Get stuck in!
Beyond Bass-icsCraft your signature sound with more than 60 traditional and boutique effects, such as octaver, bass synth and fuzz.
Classic AmpsRecreate your on-stage sound with 9 classic amps and cabinets like Fender, Ampeg, Aguilar and more.
Loop Yourself InLay down a bassline up to 30 seconds, and then endlessly overdub your performance to build a dynamic, multi-part arrangement.
Got Your Back(up)Turn on the auto save function and your patches and level settings will be instantly backed up as you create them.
Zoom B1 Four & B1X Four - Introduction

The only difference between the B1 Four and B1X Four is the included expression pedal on the B1X Four. This can be used to control various effects such as volume, wah, delay, pitch, and more.
The Tech Spec
Features | Specification |
---|---|
Pedal Type | Bass Multi-FX, Modeling |
Number of Effects | 60 (up to 5 simulaneous) |
Effects Types | Octaver, Bass snyth, Fuzz, Wah |
Amp Modeling | Yes, 9 Amps |
Looper | Yes, up to 30 seconds |
Inputs | 1 x 1/4" (instrument), 1 x 1/8" (aux in) |
Outputs | 1 x 1/4" |
USB | 1 x Micro-B |
Software | Zoom Guitar Lab |
Power Source | Zoom AD-16 AC adapter (sold separately) |
Power Usage | 500ma |
Batteries | 4 x AA |