by Jef | 4,4 / 5,0 | Approximate reading time: 3 Minutes
Zoom B2 Four

Zoom B2 Four  ·  Source: Zoom


The new Zoom B2 Four offers 11 bass amp models and onboard effects.  Making it potentially a great buy for any bass players, especially if they need a versatile compact bass rig. Guitarists had the G2 Four and G2X announced last year. Now at last bass players get a dedicated version for them


Zoom B2 Four

This Zoom B2 Four is the same form factor as the G2 Four *, just this time it is a dedicated set of 11 bass amp models and onboard effects. This makes it an appealing mini bass rig for any bassists that need to travel light, or just want a versatile rig for home.

It uses the same Zoom Multi-Layer IR technology as the two guitar versions and could be perfect for many scenarios. Users also get the same Cross Key Navigation system as the G2 versions. Though, it can also be edited using your smart devices.

Zoom B2 Four

Compact bass rig

Zoom Guitar Lab

The B2 Four has 300 patch memories and the option to build chains of up to five of these at once. The Zoom Guitar Lab software for both iOS and Android devices allows users to edit these on the fly. Which makes it appealing and also potentially very simple to use and create bass tones with.


To complete this compact package, Zoom has also included an onboard rhythm machine with 68 drum patterns and a handy 60-second built-in looper. Perfect for jamming out song ideas and practising with. I’m guessing it could also be a neat tool to have in your gig bag for downtime or as a backup.


Rear panel with balanced XLR output

Handy Connectivity

It has a balanced XLR output and a ground lift switch on the rear panel, so connectivity is also good. Plus, an Aux in for jamming along to external sources and USB for updates and communication with the Guitar Lab software and it will act as a 2 in/2 out interface to your DAW. Finally, there is an expression pedal connection as well, so you can expand the control option somewhat.


Official Specifications

  • 6 built-in DI models: 3 Tube and 3 Solid State
  • 11 realistic amp/cabinet models with newly developed Multi-Layer IR
  • 11 preamp models (including 3 ZOOM original models)
  • 85 bass effects including modelling of famous boutique pedals
  • Analog input circuit with excellent low-frequency response
  • Use up to 5 effects simultaneously
  • 300 Patch Memories (250 Preset Patches with historic bass tones)
  • 60 Second Looper + 68 rhythm patterns
  • USB port for Handy Guitar Lab connection, 2-in/2-out audio interface and firmware updates


There is a lot on offer here and for the money, it certainly packs a punch. I can see it being a useful tool for any bass player that wants a versatile tool to work with.

MSRP – EUR 275

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Image Sources:
  • Compact bass rig: Zoom
  • Rear panel with balanced XLR output: Zoom
Zoom B2 Four

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