Zoom B1 Four Bass Multi-effects Processor


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Zoom into Fatter, Badder Bass

The Zoom B1 Four bass multi-effects pedal takes your low end to new heights with over 60 effects and amp models, a looper, and a built-in rhythm section. It also includes access to Zoom Guitar Lab’s extensive library of downloadable artist patches and effects. Re-create your onstage tone with nine classic amps and cab combinations, including Fender, Aguilar, Ampeg, and more. Lay down a bass line of up to 30 seconds, and then endlessly overdub your performance to build a dynamic, multi-part arrangement.


  • Pedal Type:Bass Multi-FX, Modeling
  • Number of Effects:Over 60 (up to 5 simultaneous), 68 Built-in rhythm patterns
  • Effects Types:Octaver, fuzz, bass synth
  • 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 USB Micro-B
  • Software:Zoom Guitar Lab
  • Power Source:Zoom AD-16 AC adapter (sold separately)
  • Power Usage:500ma
  • Batteries:4 x AA
  • Height:1.6″
  • Width:5.1″
  • Depth:6.1″
  • Weight:0.74 lbs. (without batteries)
  • Manufacturer Part Number:ZB1FOUR
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