Zoom B1 FOUR Bass Multi-effects Processor

Bass Multi-Effects Pedals

The Zoom B1 FOUR and B1X FOUR take your low-end to new heights with over 70 effects and amp models, looper and a built-in rhythm section. Plus, access ZOOM Guitar Lab’s additional library of downloadable effects.

B1 Four / B1x Four Features:
  - B1 FOUR offers over 60 built-in effects
  - B1X FOUR offers over 70 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
  - PRESELECT 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

Specs:
  General Specifications:
    MAXIMUM NUMBER OF SIMULTANEOUS EFFECT: 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

  INPUT:
    INPUT:
      Type: Standard mono phone jack
      Rated input level: -20 dB
      Input impedance (line): 470 kΩ
    AUX IN:
      Type: Stereo mini jack
      Rated input level: -10 dBu
      Input impedance (line): 1kΩ

  OUTPUT:
    Type: 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)

  Additional Specifications:
    INPUT S/N: 120 dB
    NOISE FLOOR (RESIDUAL NOISE): -97 dBu
    POWER: 
      AC adapter: 9V DC 500mA center negative (ZOOM AD-16)
      Battery: 4 AA batteries (about 18 hours continuous operation time when using alkaline batteries with the LCD backlight off)
    USB:
      Connector: USB2.0 Micro-B
      Guitar Lab Standard: USB 1.1 Full Speed
      Supported cable: USB2.0 Micro-B cable
      Note: Use cables for data transfer. Power can also be supplied through the USB port. When using a cable designed only for power, other USB functions cannot be used.
    EXTERNAL DIMENSIONS:
      B1 FOUR:
        Height: 156 mm (D) × 130 mm (W) × 42 mm (H)
        Weight: 340 g (excluding batteries)
      B1X FOUR:
        Height: 156 mm (D) × 216 mm (W) × 52 mm (H)
        Weight: 610 g (excluding batteries)
  Notes: *Note: 0 dBu = 0.775 V