Skip to main content
Play Video
Zoom Zoom

Open-Box Zoom B1X FOUR Bass Multi-Effects Processor With Expression Pedal Condition 1 - Mint

105.59 $105.59
Or
6-Month Special Financing
Limited time Learn more
More ways to pay:
Loyalty Points Icon
Loyalty Points Icon
Earn 848 reward points
($8.48 in credit)
Earn 848 reward pts.
($8.48 in credit)
Inventory Msg Check Mark Inventory Msg Exclamation In Checkout Promo Inventory Msg Download Icon
In Stock & Ready to Ship
Most orders placed before 3 p.m. ET ship same day (except weekends and holidays).
  • Free Shipping
  • Top Rated
  • Lowest Price
Product Warranties Icon Product Warranties Icon

Gold Coverage Protection

Protect your gear

Chevron Right Icon
New & Restock:
From $119.99
Overview

Take your bass tonal versatility to the next level with this super portable multi-effects unit.

The ZOOM B1X FOUR takes your low end to new heights with over 70 effects and amp models, looper and a built-in rhythm section. Plus, access ZOOM Guitar Lab’s additional library of downloadable effects.

X is for Xpression

For added control, the B1X FOUR features an expression pedal that can adjust effects, such as volume, wah, delay and pitch.

Beyond the Bass-ics

Craft your signature sound with more than 70 traditional and boutique effects, such as octaver, bass synth and fuzz.

Classic Amps

Recreate your onstage sound with nine classic amps and cabinets like Fender, Ampeg, Aguilar and more.

You’ll Love ZOOM's Free Guitar Lab Software

ZOOM Guitar Lab offers an endless world of artist patches, effects and more. And with its ability to manage and backup all of your patches, you can experiment with endless combinations.

Your New Rhythm Section

Play your bass to 68 different drum patterns. The B1 FOUR series offers a built-in drum machine with a variety of rhythm patterns in 4/4, 3/4 and more.

Loop Yourself In

Lay down a bassline up to 30 seconds, and then endlessly overdub your performance to build a dynamic, multi-part arrangement.

B1X Has Your Back(up)

Turn on the auto save function and your patches and level settings will be instantly backed up as you create them.

Live Performing

Use either of two performance modes to seamlessly switch up patches and effects during live shows. PRESELECT mode lets you jump from patch to patch without affecting your current sound, while STOMP mode lets you turn individual effects on and off.

A More Hands-on Approach

Pick your pedal up off the floor for desktop use and easily dial in tones and settings to the exact levels you need.

Power Options

The B1 FOUR/B1X FOUR can operate with four AA batteries (sold separately). You can also use an optional ZOOM AD-16 AC adapter or run your pedal via USB bus power (sold separately).

Features

  • B1X FOUR offers over 70 built-in effects
  • 9 amp models for simulating classic rigs
  • Up to 5 effects can be used simultaneously, chained together in any order
  • Built-in expression pedal for control over any parameter (B1X FOUR only)
  • Looper for recording up to 30 seconds/64 beats of CD-quality audio
  • ZOOM Guitar Lab software for creating, editing and managing effects and patches
  • 68 built-in rhythm patterns which can be used in conjunction with the Looper
  • 50 memory locations for storing user-created patches
  • Auto Save function for automatic saving of all patch parameters
  • Pre Select function allows silent patch selection while the current patch remains operational
  • Onboard chromatic tuner
  • Input jack accepts standard mono bass guitar cable (both active and passive instruments supported)
  • Auxiliary input jack for connection of personal music players
  • Output jack for connection to amp or headphones
  • Lightweight and small enough to fit in your gig bag
  • Easily integrated into any existing pedalboard
  • Runs on four AA batteries, (sold separately) with alkaline battery life of 18 hours
  • USB port for firmware updates, power and connection to ZOOM Guitar Lab
  • Optional AC adapter (sold separately)

Call or click to order today!

Specs

B1X FOUR Bass Multi-Effects Processor With Expression Pedal Specifications:

  • Maximum number of simultaneous effects: 5
  • User patches: 50
  • Sampling frequency: 44.1kHz
  • A/D conversion: 24-bit, 128x oversampling
  • D/A conversion: 24-bit, 128x oversampling
  • Signal processing: 32−bit
  • Display: 128x32 dot matrix LCD
  • INPUT
    • Input: Standard mono phone jack
    • Rated input level: -20 dBu
    • Input impedance (line): 470  kohm
    • AUX In
    • Stereo mini jack
    • Rated input level: –10 dBu
    • Input impedance (line): 1 kohm
    OUTPUT
    • Standard stereo phone jack (combined line/headphone)
    • Maximum output level: Line +2 dBu (10 kohm or more output impedance)
    • Headphones 17 mW + 17 mW (32 ohm load)
    • Input S/N: 120dB
    • Noise floor (residual noise): –97dBu
    POWER
    • AC adapter: 9V DC 500mA center negative (ZOOM AD-16)
    • Runs on 4 AA batteries (sold separately, about 18 hours continuous operation time when using alkaline batteries with the LCD backlight off)
    • USB, USB MIDI, USB Micro-B
    • Power can also be supplied through the USB port
    • When using a cable designed only for power, other USB functions cannot be used
    DIMENSIONS
    • Dimensions: 6.14" x 8.5" x 2.04" (156 mm x 216 mm x 52 mm)
    • Weight: 1.34 lb. (610 g) (excluding batteries)
    Q&A

    Questions & Answers

    Do you have questions about this product?

    Shop with a Friend
    Free Shipping
    • Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
    • Orders placed before 3 p.m. ET usually ship the same business day.
    Learn More
    2-Year Free Warranty on Guitars

    Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.

    Contact Us for Details
    We're Here for You

    Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.

    Contact Us
    Proactive Advisor Support Chat