---
product_id: 105200324
title: "B1X Four Bass Multi-Effects Processor with Expression Pedal, with 70+ Built-in Effects, Amp Modeling, Looper, Rhythm Section, Tuner, Battery Powered"
brand: "zoom"
price: "€ 250.06"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/105200324-b1x-four-bass-multi-effects-processor-with-expression-pedal-70
store_origin: GR
region: Greece
---

# 13 amp emulators 18-hour battery life 70+ pro-grade effects B1X Four Bass Multi-Effects Processor with Expression Pedal, with 70+ Built-in Effects, Amp Modeling, Looper, Rhythm Section, Tuner, Battery Powered

**Brand:** zoom
**Price:** € 250.06
**Availability:** ✅ In Stock

## Summary

> 🎸 Elevate your bass game with pro effects and endless creativity!

## Quick Answers

- **What is this?** B1X Four Bass Multi-Effects Processor with Expression Pedal, with 70+ Built-in Effects, Amp Modeling, Looper, Rhythm Section, Tuner, Battery Powered by zoom
- **How much does it cost?** € 250.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/105200324-b1x-four-bass-multi-effects-processor-with-expression-pedal-70)

## Best For

- zoom enthusiasts

## Why This Product

- Trusted zoom brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Gig-Ready Endurance:** Up to 18 hours of continuous play powered by 4 AA batteries or USB for ultimate portability.
- • **Express Yourself Live:** Integrated expression pedal for real-time wah, pitch, and volume control.
- • **Seamless Set Transitions:** Switch effortlessly between 50 user patches and pre-loaded presets without missing a beat.
- • **Unleash Infinite Bass Tones:** 70+ built-in effects and 13 amp models to craft your signature sound.
- • **Intuitive Control at Your Fingertips:** 128x32 dot matrix LCD ensures quick navigation and easy parameter tweaks.

## Overview

The ZoomB1X Four is a compact, battery-powered bass multi-effects processor featuring over 70 effects, 13 amp emulators, an expression pedal for dynamic control, a looper, rhythm section, tuner, and seamless patch switching. Designed for gigging musicians and studio pros alike, it offers up to 18 hours of playtime and an intuitive interface for effortless sound shaping on the go.

## Description

Zoom B1X Four Bass Multi-Effects Processor with Expression Pedal, with 70+ Built-in Effects, Amp Modeling, Looper, Rhythm Section, Tuner, Battery Powered

## Features

- 71 built-in bass effects and 9 amp models
- Free download of Zoom guitar lab Mac/Windows software
- 30-Second looper
- 68 built-in rhythm patterns
- Standard Guitar input, aux input for external audio players and amp/headphone output

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 1.84 Pounds |
| Item Dimensions L x W x H | 8.5"L x 6.14"W x 2.05"H |
| Color | Red |
| Style Name | B1X FOUR |
| Power Source | Battery Powered |
| Signal Format | Analog |
| Hardware Connectivity | USB |
| Amperage | 9 Amps |
| Audio Output Effects | Auxiliary |
| Voltage | 9 Volts |

## Product Details

- **Brand:** Zoom
- **Style:** B1X FOUR
- **Color:** Red
- **Product Dimensions:** 6.2"L x 10"W x 2"H
- **Item Weight:** 1.8 Pounds

## Images

![B1X Four Bass Multi-Effects Processor with Expression Pedal, with 70+ Built-in Effects, Amp Modeling, Looper, Rhythm Section, Tuner, Battery Powered - Image 1](https://m.media-amazon.com/images/I/81cA-alqJnL.jpg)

## Available Options

This product comes in different **Pattern Name, Style** options.

## Questions & Answers

**Q: trying to decide which one to get... what exactly does the expression pedal do?**
A: The expression pedal offers several functions. Yes, it can adjust volume or be used as a wah but it can also adjust intensity of effects. It's nice to be able to adjust the amount of overdrive or phaser, etc.., for example, with your foot.  You can use it to adjust the pitch when using that effect.

**Q: Can i use it with an ukulele because i'm a bass and ukulele player. Also can we connect it to an audio digital interface like focusright Scarlett?**
A: Yes you can connect it to focusrite interface, I don’t know for sure if a ukulele will work with the bass processor since if mainly for the bass guitar.

**Q: Unit won't stay powered on for more than a second when under battery power, second one I ordered with same problem, purchased end of August 22.**
A: Use the android plug, it works great for hours, don't drop anything on it, falls,  or spills she's easy to bust

**Q: How do you get the device that you plug in to play music through Zoom(such as phone) to play in stereo? I can only get mine to play mono.**
A: You must be plugging your phone in with a mono cord, I would try a different aux cable.

## Frequently Bought Together

- Zoom Guitar MultiEffects Processor with Expression Pedal
- D'Addario Accessories Guitar Pedal Power Supply - DC 9V Power Cord - 9V Power Supply for Guitar Pedals - Pedalboard Power Supply - PW-CT-9V
- New Bee 10 ft Guitar Cable - Electric Instrument Cable for Bass, Guitar, Mandolin, Pro Audio - Straight to Straight - Black

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**Shop now:** [https://www.desertcart.gr/products/105200324-b1x-four-bass-multi-effects-processor-with-expression-pedal-70](https://www.desertcart.gr/products/105200324-b1x-four-bass-multi-effects-processor-with-expression-pedal-70)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-23*