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ZoomB1X FOUR Bass Multi-FX Processor


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Zoom's B1X FOUR is an all-in-one bass multi-effects rig for portable amp & cab simulation as well as effects processing, whether you're rocking the stage or practicing on the go. Designed with a minimal footprint for maximum sound design and performability, the B1X FOUR radiates with awe-inspiring sound profiles and 50 onboard memory slots for saving, editing, and recalling your favorite presets. With an easy to use interface, the B1X FOUR offers a supreme selection of over 70 effects to choose from and five effects slots with numerous routing possibilities. Effects range from dynamic, drive, and filter effects to special FX, modulation, and time-based selections such as reverbs and delays, all of which are custom-tuned to best fit your bass guitar—be it active or passive!

The stunning audio quality of 24-bit/44.1kHz and 32-bit floating point DSP lends itself nicely not only to achieving pristine processing, but also for the onboard looper, able to record up to 30 seconds of audio. Great for capturing foundational material to shred over, the performability of B1X FOUR extends into its attached pedal for creating volume sweep, wah sweeps, or any adjustable parameter possible for creating dynamic shifts, patch to patch! Additional support comes from the onboard tuner for making sure your bass is always rocksteady along with the 68 available drum rhythms to practice with or support you on-stage as a solo artist.

The B1X FOUR's compact design makes it easy for traveling as well as keeping your practice space less cluttered by large amp heads, cabinets, and a snakepit of pedals and cables. The portability lies not only in the B1X FOUR's size, but also in its power consumption with availability for both battery power and even USB power. The USB port secondarily acts as a data-transfer port for managing onboard presets via the free Zoom Guitar Lab software, great for backing up, swapping, and editing your favorite tones. No matter your style or setup, the B1X FOUR can be your one and only or support any bass players rig for stellar performances.

B1X FOUR Features

  • Bass multi-FX pedal
  • 70+ built-in effects with 9 modeled amplifiers
  • Combine up to five effects simultaneously with multiple configurations of chaining
  • Built-in expression pedal with accessibility to any parameter
  • Loop up to 30 seconds of 44.1kHz/24-bit audio quality
  • 68-built-in rhythm patterns for use with looper section
  • Store up to 50 presets with auto save functionality of all parameters
  • Onboard tuner with input accepting both active and passive basses
  • Auxiliary input for personal music playback
  • Output jack supports amplifier level or headphone level
  • Lightweight design that can run off batteries or external PSU
  • USB functionality for data transfer to ZOOM Guitar Lab software (preset editing and management)
  • Dimensions: Inputs: 1x TS 1/4", 1x 3.5mm TRS stereo
  • Power Specs: Outputs: 1x TRS 1/4" (stereo or instrument level)
  • Input S/N: 120dB
  • Noise floor: -97dB
  • Audio quality: 44.1kHz/24-bit
  • Display: 128x32 dot-matrix LCD
  • USB connection: micro-B
  • Dimensions: 156mm x 216mm x 52mm (D x W x H)
  • Weight: 610 g (without batteries)
  • Power: 9V DC 500mA center negative (not included), 4x AA batteries, or micro-B power
Zoom B1X FOUR Bass Multi-FX Processor Reviews