Zoom B1FOUR Multi-Effects Processor BASS FX PEDALS
Only 1 left !
Zoom B1FOUR Multi-Effects Processor BASS FX PEDALS
Only 1 left !
Zoom B1FOUR Multi-Effects Processor BASS FX PEDALS
Only 1 left !

Zoom B1FOUR Multi-Effects Processor


  • $129.99

Price Match Only 1 left!

Take your low end to new heights with the ZB1FOUR multi-effects bass pedal from Zoom. Featuring over 70 traditional and boutique effects—including right modulation, pitch-shifting delay, and even sitar simulation—you'll discover sounds that inspire your rehearsals and performances. 9 programmed classic amps and cabinets from Fender, Ampeg, Aguilar and more deliver big stage sound from this compact pedal. ZB1ZOOM also includes access to ZOOM Guitar Lab's library of downloadable artistic patches and effects that are easily managed and backed up for experimenting with endless creative combinations. Drums are also no worry with 68 great, built-in rhythm patterns in a variety of time signatures to play alongside. Record and arrange up to 30 seconds of playing with the built-in looper, while the Auto Save function ensures you never lose your latest creation. Two performance modes seamlessly switch up sounds during live shows—PRESELECT for patch to patch incorporating and STOMP for easy on and off control with the tap of your foot. ZB1ZOOM fits nicely on stage or on your desktop for precision crafting of your perfect sound.


  • Quick Guide
  • AA size (LR6) battery x 4


  • B1 FOUR offers over 60 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 pedal board
  • Runs on 4 AA batteries, with alkaline battery life of 18 hours
  • USB port for firmware updates, power and connection to ZOOM Guitar Lab


  • Maximum number of simultaneous effects: 5
  • User patches: 50
  • Sampling frequency: 44.1 kHz
  • A/D conversion: 24-bit, 128× oversampling
  • D/A conversion: 24-bit, 128× oversampling
  • Signal processing: 32−bit
  • Display: 128x32 dot matrix LCD
  • Inputs
    • INPUT: Standard mono phone jack, Rated input level: -20 dBu,Input impedance (line): 470 kΩ
    • AUX IN: Stereo mini jack, Rated input level: -10 dBu, Input impedance (line): 1kΩ
  • Output
    • Standard stereo phone jack (combined line/headphone)
    • Maximum output level: Line +2 dBu (10 kΩ or more output impedance)
    • Headphones 17 mW + 17 mW (32Ω load)
  • Input S/N: 120 dB
  • Noise floor (residual noise):
    • -97 dBu
    • Power :AC adapter: 9V DC 500mA center negative (ZOOM AD-16)
    • 4 AA batteries (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: 156 mm (D) × 130 mm (W) × 42 mm (H)
  • Weight: 340 g (excluding batteries)

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