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Bigger, bolder Bass - B1 FOUR / B1X FOUR Multi-effects Pedals for Bass!
The Zoom B1 FOUR and B1X FOUR take you to new heights with over 70 effect and amp models, a looper, and a built-in rhythm section. Plus, you can access the additional library of downloadable effects from ZOOM Guitar Lab.
X Stands for Xpression
For extra control, the B1X FOUR offers an expression pedal that lets you adjust effects like volume, wah, delay, and pitch.
Beyond the Bass-ics
Create your unmistakable sound with over 60 traditional and boutique effects like octaver, bass synth, and fuzz.
Classic Amps
With 9 classic amps and cabinets like Fender, Ampeg, Aguilar, and more, you can replicate your stage sound.
Free Guitar Lab Software Included
Discover an endless world of patches, effects, and more from artists with ZOOM Guitar Lab. Manage and back up all your patches to experiment and create endless combinations.
Your New Rhythm Section
Play your bass with 68 different drum patterns! The B1 FOUR series offers a built-in drum machine with various rhythm patterns in 4/4, 3/4, and more.
Looping Dynamics
Set a bassline for up to 30 seconds and endlessly build your performance to create a dynamic, multi-part arrangement.
Zoom Is Your Backup
Activate the auto-save function and your patches and level settings are instantly saved as you create.
Live Performance
Use one of two performance modes to switch patches and effects seamlessly during live shows. In PRESELECT mode, jump from patch to patch without affecting the current sound. STOMP mode lets you turn individual effects on and off.
A Practical Approach
Place your pedal on the floor or desktop and simply dial in your desired tones and settings.
Power Options
The B1 FOUR / B1X FOUR can run on four AA batteries. You can also use an optional Zoom power supply AD-16 or power the pedal via USB bus.
How will you dial in your tone?
Features
- 65 internal effects in the B1 FOUR
- 9 amp simulations of classic rigs
- Use up to five effects simultaneously and in any order
- Looper for recording audio material up to 30 seconds / 64 beats in CD quality with inaudible start and end points
- Guitar Lab software for creating, editing, and managing effects and patches
- 68 internal rhythm patterns, usable with the looper
- 50 memory slots for creating custom patches
- Swap function for especially easy patch management
- Automatic saving of all patch parameters with the auto-save function
- Silent patch selection via the preselect function while the current patch remains active
- Built-in chromatic tuner supports all common bass tunings including Low-B, High-C, and drop tunings
- Input jack designed for standard mono jack cables (supports both active and passive basses)
- Auxiliary input jack for connecting your own music player
- Output jacks for connection to an amplifier or headphones
- Backlit LCD with contrast adjustment for optimal display in low light
- Lightweight and compact for transport in your gig bag
- Easy integration into existing pedalboards
- Operates on four AA batteries for up to 18 hours runtime
- USB port for firmware updates, power supply, and connection to Guitar Lab
- Optional power supply
Technical Data
- Maximum number of simultaneous effects: 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: 128 x 32 dot matrix LCD
- Input: Standard mono jack socket
- Nominal input level: -20 dBu
- Input impedance (line): 470 kΩ
- AUX IN: Stereo mini jack nominal input level: -10 dBu
- Input impedance (line): 1 kΩ
- Output: Standard stereo jack socket (combined line / headphones)
- Maximum output level: line +2 dBu (10 kΩ or higher output impedance)
- Headphones 17 mW + 17 mW (32 Ω load)
- USB: USB MIDI, USB Micro-B
- Power supply: 9 V DC 500 mA adapter or 4x AA batteries
- Dimensions (W x H x D): 130 x 42 x 156 mm
- Weight: 340 g
Scope of delivery
- 1 x B1 FOUR Multi-effects Pedal
- 1 x Bass Patch List
Specification
- Product number 00060657
- Colour Red
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| 30 Day Money Back | |
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The hotline is currently not manned. You can reach us again on Wednesday, 20.05.2026 at 09:30.
| Wednesday | 09:30 - 18:00 | |
| Thursday | 09:30 - 18:00 | |
| Friday | 09:30 - 18:00 | |
| Saturday | 09:30 - 13:30 | |
| Monday | Closed |
Different opening times |
| Tuesday | 09:30 - 18:00 |















