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Bigger, bolder bass - B1 FOUR / B1X FOUR Multi-Effects Pedals for Bass!
With over 70 effects and amp simulations, the looper, and integrated rhythm section, the B1X FOUR sends your bass foundation soaring. Plus, the expanded library from Guitar Lab offers countless downloadable effects.
X Stands for Xpression
For extended control, the B1X FOUR features an expression pedal that lets you manipulate effects like volume, wah, delay, and pitch.

Beyond the Bas(s)is
Shape your personal sound with over 60 vintage and boutique effects like octaver, bass synth, and fuzz.
Classic Amplifiers
Create your stage sound with 9 classic amplifier and speaker simulations modeled after legendary amps from Fender, Ampeg, Aguilar, and others.


You Will Love the Free Guitar Lab Software
Guitar Lab offers you a whole universe of artist patches, effects, and much more. Thanks to the ability to manage and back up all your patches via the software, you can experiment with endless effect combinations.
Your New Rhythm Section
Play your bass along with 68 different drum patterns! The B1 FOUR series integrates a drum machine with numerous rhythm patterns in 4/4, 3/4, and many other time signatures.
Dive Into the Loop
Record a bass line up to 30 seconds long and then create as many overdubs as you like to build a dynamic arrangement.


Always on the Safe Side
Activate the auto-save function to automatically back up your patches and level settings immediately after editing.
For Live Performances
With two performance modes, you can seamlessly switch between patches and effects during a live show. In PRESELECT mode, you can jump from one patch to the next without changing the current sound, while in STOMP mode you can turn individual effects on or off.
Designed for Manual Operation
Alternatively to floor use, you can comfortably operate the pedals on your desktop and adjust your sounds and levels there with absolute precision.


Variable Power Supply
The B1X FOUR can be powered by four AA batteries. Alternatively, you can use an optional Zoom AD-16 power adapter or power the pedal via the USB bus.
How will you create your tone?
Features
- 71 built-in effects in the B1X FOUR
- 9 amp simulations of classic rigs
- Use up to five effects simultaneously and in any order
- Integrated expression pedal to control any parameter
- Looper for recording audio material up to 30 seconds / 64 beats in CD quality with imperceptible start and end points
- Guitar Lab software for creating, editing, and managing effects and patches
- 68 internal rhythm patterns, also 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 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 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 adapter
Technical Data
- Maximum number of simultaneous effects: 5
- User patches: 50
- Sampling rate: 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): 216 x 52 x 156 mm
- Weight: 610 g
Scope of delivery
- 1 x B1X FOUR Multi-Effects Pedal
- 1 x Bass Patch List
Specification
- Product number 00060658
- Colour Red
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Variant Zoom B1 FOUR Effects Pedal
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Financing
ConsorsFinanz Finanzierung
- 6 to 72 months term
- 0% financing for 9,41 € per month
- More information on financing
| 3 Year warranty | |
| 30 Day Money Back | |
| Price Match Guarantee | |
| Over 2.000.000 satisfied customers |
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 |














