Zoom B2 Four

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)
82 bass effects including modeling 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

Effects, IR’s, and DI Modeling for Every Bassist

Unleash Your Bass
Introducing the B2 FOUR Effects and Amp Emulator, powered with Zoom’s Multi-Layer IR technology and 6 iconic DI models. Now you can craft the perfect low-end tone.

Packed with Effects
Build patches from 104 effects, including models of famous boutique effects and preamps. Mix and match up to 5 effects and amps simultaneously to build your own custom patches.

Built for Live Performance
When you need to plug directly into the house PA, the lightweight and portable B2 FOUR has you covered. It features six DI models that recreate the tone of world-class direct boxes:

Tube 1 for rich harmonics and thick low frequencies.
Tube 2 for a clear attack and tight low frequencies.
Tube 3 for a clear and glossy sound.
Solid State 1 for moderate compression and sharp tones.
Rich Amp and Cabinet Models
Zoom’s innovative Multi-Layer IR technology recreates the tonal characteristics of playing through classic amps and cabinets. These impulse responses were captured from cabinets at 3 different levels and are activated based on the volume of your bass.

Historic Bass Sounds
Preloaded with 250 presets, these patches are designed to give bassists the ability to recreate the sound of popular songs from the 50’s to today.

Navigate and Create
The 4 rotary encoders allow for quick adjustments to effects parameters as well as output settings. The cross key navigation buttons help you control the pedal with ease.

Loop and Groove
Jam and rehearse with the B2 FOUR. The 60-second looper allows you to build grooves, while the 68 rhythm patterns from the on-board drum machine are the perfect companion for practice.

Input & Output Options
A balanced output helps you connect directly to a PA or interface while the stereo outputs can connect to an amp. The instrument input has a switch to change the impedance from 1M to 10M ohms, giving you a cleaner tone for upright basses equipped with piezo pickups.

Audio Interface
The B2 Four can be used as a 2-in/ 2-out audio interface by connecting to a computer or smartphone with your favorite effects and amp models. 

Its Own App
With a constantly expanding library of patches and effects, bassists can continue to expand their sound with the "Handy Guitar Lab for B2 FOUR" app (for iOS), available to purchase on the Apple App Store.