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collapse expand iconDescription

A powerful multi-effects solution for bassists seeking studio-quality tones. Packed with over 70 bass effects, including compression, overdrive, fuzz and modulation, the B1X FOUR provides bassists a wide range of sounds for live performance or recording.

68 Studio-Quality Effects at Your Fingertips

The B1X FOUR comes loaded with more than 70 bass effects to shape and refine your tone. Choose from essential effects like compression, overdrive, fuzz, chorus, flanger, phaser, tremolo, pitch shifter and more. With the B1X FOUR, you have a complete effects suite for bass right at your feet.

Intuitive Interface and Touch-Sensitive Expression Pedal

Despite its powerful capabilities, the B1X FOUR is intuitive to use thanks to its simple interface. Easily select effects and make adjustments using the dedicated knobs and buttons. The built-in expression pedal allows you to smoothly control effects parameters or volume in real time. With its response, the expression pedal provides nuanced control over your effects for dynamic and emotive playing.

Rugged, Stage-Ready Design

Housed in a rugged metal chassis, the B1X FOUR is built to withstand the rigors of the stage. Its durable design provides lasting protection for the premium components inside. The B1X FOUR runs on AC power or batteries for onstage flexibility. With its compact size and robust construction, the B1X FOUR is the perfect multi-effects solution for gigging and touring bassists.

Open Box Zoom B1X FOUR Bass Multi-Effects Processor with Expression Pedal Level 2 197881209421
Open Box Zoom B1X FOUR Bass Multi-Effects Processor with Expression Pedal Level 2 197881209421
Open Box Zoom B1X FOUR Bass Multi-Effects Processor with Expression Pedal Level 2 197881209421

collapse expand iconFeatures

  • 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 4 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

collapse expand iconSpecs

  • 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): 470K ohm
    • AUX In
    • Stereo mini jack
    • Rated input level: -10 dBu
    • Input impedance (line): 1K ohm
    OUTPUT
    • Standard stereo phone jack (combined line/headphone)
    • Maximum output level: Line +2 dBu (10K ohm 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)

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