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Zoom B1X FOUR Bass Multi-effects Processor with Expression Pedal

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Zoom B1X FOUR Bass Multi-effects Processor with Expression Pedal

$119.99 Price Tier: Budget

5.0 (1)

1 Critic Review

1 wishlisted

6 saved

Page last updated Jul 04, 2026

Pricing and availability

We compare 600+ stores and found this item at 8 stores. Prices updated July 3, 2026.

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4.5 (29)

$119.99

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5.0 (4)

$119.99

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4.6 (1946)

$119.99

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5.0 (2)

$119.99 11 available New

$72.00 5 available Used

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4.0 (4)

$119.99

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4.5 (5)

$119.99

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5.0 (1)

$119.99

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$119.99

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Average Price: $115

Budget/Beginner

$150

$601+

Price Tier

In the Multi Effects Pedals category, Zoom B1X FOUR Bass Multi-effects Processor with Expression Pedal is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

Budget

Standard

High-end

Price History

Based on price data from 6 merchants for "Zoom B1X FOUR Bass Multi-effects Processor with Expression Pedal". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Unleash your Bass Potential with the Zoom B1X FOUR

The Zoom B1X FOUR Bass Multi-effects Processor is an all-in-one solution that will take your bass playing to new dimensions. This pedal offers an extraordinary range of over 70 effects and amp models, allowing you to craft your signature sound with classic and boutique effects such as octaver, fuzz, and bass synth. This device is more than just an effects processor, it's a comprehensive tool for bassists, with a built-in rhythm section and a 30-second looper that enables you to create dynamic, multi-part arrangements.

One of the standout features of the Zoom B1X FOUR is the expression pedal, which opens a world of control over your effects. Adjust volume, wah, delay, and pitch on the fly - a perfect feature for live performances. Speaking of live performances, the B1X FOUR also has two performance modes for seamless switching of patches and effects.

Key Features:

Built-in expression pedal for real-time control
Over 70 built-in effects for endless tonal possibilities
9 amp models for simulating classic rigs
Looper allows for recording up to 30 seconds of CD-quality audio
Access to Zoom Guitar Lab's library of downloadable effects and patches
68 built-in rhythm patterns for practice and performance
50 memory locations for storing custom patches
Auto save function for instant backup of patches and settings
Auxiliary input jack for connection of personal music players
USB port for firmware updates, power and connection to Zoom Guitar Lab
Operates on 4 AA batteries or via USB bus power. Optional Zoom AD-16 AC adapter also available.

Owner's manual

Zoom B1X FOUR Bass Multi-effects Processor with Expression Pedal User Manual

Product specs

Pedal Type	Bass Multi-FX, Modeling
Number of Effects	Over 70 (up to 5 simulaneous), 68 Built-in rhythm patterns
Effects Types	Octaver, Bass synth, 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
Height	2"
Width	8.5"
Depth	6.1"
Weight	1.3 lbs.

FAQs

What types of effects are included in the Zoom B1X FOUR Bass Multi-effects Processor?: The Zoom B1X FOUR includes over 70 effects such as octaver, bass synth, fuzz, and wah, along with 68 built-in rhythm patterns. It also features 9 amp models to simulate classic rigs.
Can the Zoom B1X FOUR be used with an expression pedal?: Yes, the Zoom B1X FOUR comes with a built-in expression pedal, allowing you to control various effect parameters in real-time for dynamic performance.
How does the looper function work on the Zoom B1X FOUR?: The looper on the Zoom B1X FOUR allows for up to 30 seconds of looping, enabling you to create layered bass lines and practice improvisation effectively.
Is the Zoom B1X FOUR compatible with Zoom Guitar Lab software?: Yes, the Zoom B1X FOUR is compatible with Zoom Guitar Lab, allowing you to access additional downloadable effects and manage your patches through a USB connection.
What are the power options for the Zoom B1X FOUR?: The Zoom B1X FOUR can be powered by 4 AA batteries, providing up to 18 hours of use, or by using the Zoom AD-16 AC adapter, which is sold separately.

Videos

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Bass Bonedo

ZOOM B1 Four / B1X Four - Sound Demo (no talking)

Bass Bonedo

Zoom B1X Four | Review and Demo

Tom’s Place of Bass

Zoom B1 Four & B1X Four - Introduction

ZoomSoundLab

ZOOM B1X VS. Single Effect Pedals

Bass Bonedo

Zoom B1x FOUR - Review

Gökhan Yumuşakdemir

Reviews

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PROS

Staggering selection of modeled compressors, drives, amps, speaker cabs, and effects
High-quality "sans amp" reproduction
Great for beginners and advanced players with easy navigation
Replaces $1000 in pedals, offering great value
Built-in tuner, rhythm kit, and can function as a practice amp with headphones
Durable build quality and rugged design
Helps improve bass playing skills in practice and live gigs
Convenient for experimenting with different sounds
Affordable, offering a lot of features for the price

CONS

Sound quality varies due to 24 bit X 44.1 kHz limitation
Expression pedal model could include more effects options
Plastic build may not match the durability of more expensive units
Expression pedal could be larger for more precise use

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Zoom B1X FOUR Bass Multi-effects Processor with Expression Pedal.

Features and functionality

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Functions well as a headphone amp, allowing users to play without an external amplifier.
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Includes a looper for songwriting and improvisation, though limited by processing power for complex effects.
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The pedal can be powered via USB, but lacks a power switch, which some users find inconvenient.
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The expression pedal can be used to create custom distortion effects by chaining up to five different distortions, including bass wah, into a single patch.
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The B1X Four's expression pedal allows for dynamic control over effects like volume swells, pitch shifting, and wah effects, enhancing the playability for those who engage with these features.
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Comparisons

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The Line 6 HX Stomp is noted for superior performance, though at a significantly higher price point.
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The Hotone Ampero One and Valeton GP-100 offer similar features but with built-in USB audio interfaces and the ability to load cabinet impulse responses.
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Build quality

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The screen can be prone to cracking, impacting visibility but not functionality.
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Despite its plastic construction, the pedal includes a sturdy metal chassis, making it robust enough for gigging.
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Use cases and applications

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Ideal for bedroom musicians or those who gig infrequently, offering an affordable way to explore effects.
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Owners appreciate creating custom presets to compensate for different bass output levels, optimizing it for live settings.
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While some owners find the expression pedal underwhelming for gigs, it becomes a valuable tool during jam sessions for experimenting with sound.
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Software and compatibility

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Using Tonelib software enhances patch editing, making it significantly easier than navigating the pedal's menus.
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User experience

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Long-term users report no issues after years of gigging, emphasizing its durability and reliability despite initial concerns about plastic build.
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The expression pedal can default to volume control, allowing users to fade in and out or mute with their foot.
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Critic Reviews

Zoom B1 X FOUR Multi-Effects Pedal - Guitar Interactive Magazine

guitarinteractivemagazine.com

The Zoom B1X FOUR Multi-effects Processor packs a punch with over 70 effects, an expression pedal, and a looper, all at an unbeatable price. It offers intuitive controls and features like auto-save and pre-select, making it easy to craft and switch tones. While the small screen can be tough to read in bright light, and some users may encounter connectivity issues with the app, these drawbacks are minor compared to the device's extensive capabilities. For bassists seeking versatility without breaking the bank, the B1X FOUR is a stellar choice that delivers serious bang for your buck.

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Genre Usage

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Used With

Based on how musicians on Equipboard use Zoom B1X FOUR Bass Multi-effects Processor with Expression Pedal, it is most commonly used with the following gear.