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collapse expand iconDescription

A powerful multi-effects solution for bassists seeking studio-quality tones. Packed with over 70 bass effects, including compression, overdrive, fuzz and modulation, the B1X FOUR provides bassists a wide range of sounds for live performance or recording.

68 Studio-Quality Effects at Your Fingertips

The B1X FOUR comes loaded with more than 70 bass effects to shape and refine your tone. Choose from essential effects like compression, overdrive, fuzz, chorus, flanger, phaser, tremolo, pitch shifter and more. With the B1X FOUR, you have a complete effects suite for bass right at your feet.

Intuitive Interface and Touch-Sensitive Expression Pedal

Despite its powerful capabilities, the B1X FOUR is intuitive to use thanks to its simple interface. Easily select effects and make adjustments using the dedicated knobs and buttons. The built-in expression pedal allows you to smoothly control effects parameters or volume in real time. With its response, the expression pedal provides nuanced control over your effects for dynamic and emotive playing.

Rugged, Stage-Ready Design

Housed in a rugged metal chassis, the B1X FOUR is built to withstand the rigors of the stage. Its durable design provides lasting protection for the premium components inside. The B1X FOUR runs on AC power or batteries for onstage flexibility. With its compact size and robust construction, the B1X FOUR is the perfect multi-effects solution for gigging and touring bassists.

Zoom B1X FOUR Bass Multi-Effects Processor With Expression Pedal
Zoom B1X FOUR Bass Multi-Effects Processor With Expression Pedal
Zoom B1X FOUR Bass Multi-Effects Processor With Expression Pedal

collapse expand iconFeatures

  • 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
  • Pre Select 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 pedalboard
  • Runs on four AA batteries, (sold separately) with alkaline battery life of 18 hours
  • USB port for firmware updates, power and connection to ZOOM Guitar Lab
  • Optional AC adapter (sold separately)
warning

WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.

collapse expand iconSpecs

  • Maximum number of simultaneous effects: 5
  • User patches: 50
  • Sampling frequency: 44.1kHz
  • A/D conversion: 24-bit, 128x oversampling
  • D/A conversion: 24-bit, 128x oversampling
  • Signal processing: 32−bit
  • Display: 128x32 dot matrix LCD
    • INPUT
    • Input: Standard mono phone jack
    • Rated input level: -20 dBu
    • Input impedance (line): 470  kohm
    • AUX In
    • Stereo mini jack
    • Rated input level: –10 dBu
    • Input impedance (line): 1 kohm
    OUTPUT
    • Standard stereo phone jack (combined line/headphone)
    • Maximum output level: Line +2 dBu (10 kohm or more output impedance)
    • Headphones 17 mW + 17 mW (32 ohm load)
    • Input S/N: 120dB
    • Noise floor (residual noise): –97dBu
    POWER
    • AC adapter: 9V DC 500mA center negative (ZOOM AD-16)
    • Runs on 4 AA batteries (sold separately, about 18 hours continuous operation time when using alkaline batteries with the LCD backlight off)
    • USB, USB MIDI, USB Micro-B
    • Power can also be supplied through the USB port
    • When using a cable designed only for power, other USB functions cannot be used
    DIMENSIONS
    • Dimensions: 6.14" x 8.5" x 2.04" (156 mm x 216 mm x 52 mm)
    • Weight: 1.34 lb. (610 g) (excluding batteries)

    Featured Articles

    collapse expand iconReviews

    4.75

    4 Reviews

    100%

    of respondents would recommend this to a friend

    Zoom B1X FOUR Bass Muti-Effects unit has a ton of options
    Filters
    Best Uses
    1. Home Studio3
    2. Performances2
    3. Professional Recording2
    4. Amateur Recording1
    5. Outdoor Events / Games1
    Describe Yourself
    1. Professional Musician2
    2. Experienced1
    Pros
    1. Compact3
    2. Excellent Sound Quality3
    3. Good Selection Of Effects3
    4. Responsive3
    5. Versatile3

    Reviewed by 4 customers

    • great adition for the price!

      5

      Verified BuyerVerified Buyer

      submitted2 years ago

      byRussell

      fromspringfield MO

      Submitted as part of a sweepstakes

      just started performing again . i added this cause i had no effects and what a great surprise it is!

    • I like it

      4

      Verified BuyerVerified Buyer

      submitted3 years ago

      byBob

      fromANYTOWN, USA

      Good stuff, Good service, Good price.

    • Zoom B1X FOUR Bass Muti-Effects unit has a ton of options

      5

      Verified BuyerVerified Buyer

      submitted3 years ago

      byKevin

      fromSan Francisco, CA

      Zoom B1X FOUR Bass Multi-Effects Processor with Expression Pedal comes out of the box with a lot of very usable presets. You get totally decent sound from most of the effects. Also, a drum machine and a looper are built-in. There's a slight learning curve but it's not too steep. Easily create your own patches and quickly place your virtual pedals in any order to explore what works best for you. I found a lot of cool tones in the first 30 minutes of using this multi-effects processor and I'm able to hear what editing effects sounds like immediately. Connecting the B1X Four vis USB to your computer / DAW is key to opening up a universe of creative possibilities. The free Zoom Guitar Lab software makes editing the virtual pedals a breeze and a lot of fun. The price on this Zoom unit is too good to pass up. Added bonuses: This is a great practice-with-headphones amp. Power via battery or AC power brick or USB is a brilliant design.

    • The Mix5 is great for small pedalboards.

      5

      Verified BuyerVerified Buyer

      submitted3 years ago

      byRich

      fromSoCal

      Great for home studios or just jamming along with cover tunes.

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    collapse expand iconQ&A

    Have a question about this product? Our expert Gear Advisers have the answers.

    • submitted2 months ago

      asked byIRONHAND

      fromCuLVER CITY, CA. 90066

      IS THIS A PRE-AMPS OR BOOSTER?

      IS THIS A PRE-AMPS OR BOOSTER?

      Open Reply - Gear-Support
      The Zoom B1X FOUR is neither strictly a preamp nor just a booster – it's a multi-effects processor designed for bass guitar.

    • submitted2 years ago

      asked byJoeeeeeeeeee

      fromAlberta, Canada

      Do i need a computer to use this? Would it be fine if it's just plugged into my amp?

      Do i need a computer to use this? Would it be fine if it's just plugged into my amp?

      Open Reply - Gear-Support
      It would be great. No computer.

    • submitted2 years ago

      asked byIvan

      fromMoreno Valley

      Can You run this with an amp?

      Can You run this with an amp?

      Open Reply - Gear-Support
      Yes, you can run the Zoom B1X FOUR with an amp.

    • submitted2 years ago

      asked byJim

      fromPA

      Does this pedal have built in compression?

      Does this pedal have built in compression?

      Open Reply - Gear-Adviser
      Yes

    • submitted4 years ago

      asked byPriscilla

      fromCorpus Christi, TX

      Is an AC Adapter included or do I have to purchase that separately?

      Is an AC Adapter included or do I have to purchase that separately?

      Open Reply - Thomas
      It needs to be purchased separately. Please give us a call to better help you out – 877-687-5403

    • submitted4 years ago

      asked byBob

      fromMatteson, Il

      Is this eligible for the 20% coupon?

      Is this eligible for the 20% coupon?

      Open Reply - Thomas
      Please give us a call to discuss pricing 877 687 5403

    • submitted4 years ago

      asked byAl

      fromSouth Euclid, Oh.

      what comes in the Zoom B1x four box?

      what comes in the Zoom B1x four box?

      Open Reply - Thomas
      No accessories are included

    • submitted5 years ago

      asked byB

      fromNew York

      I play bass and guitar, considering buying this to use for both. will this work/ sound good on my electric guitar?

      I play bass and guitar, considering buying this to use for both. will this work/ sound good on my electric guitar?

      Open Reply - Ronald
      It will work with the guitar, but the sound may not be optimal since it's designed for bass.