trying to decide which one to get... what exactly does the expression pedal do?

The expression pedal offers several functions. Yes, it can adjust volume or be used as a wah but it can also adjust intensity of effects. It's nice to be able to adjust the amount of overdrive or phaser, etc.., for example, with your foot. You can use it to adjust the pitch when using that effect.

Can i use it with an ukulele because i'm a bass and ukulele player. Also can we connect it to an audio digital interface like focusright Scarlett?

Yes you can connect it to focusrite interface, I don’t know for sure if a ukulele will work with the bass processor since if mainly for the bass guitar.

Unit won't stay powered on for more than a second when under battery power, second one I ordered with same problem, purchased end of August 22.

Use the android plug, it works great for hours, don't drop anything on it, falls, or spills she's easy to bust

How do you get the device that you plug in to play music through Zoom(such as phone) to play in stereo? I can only get mine to play mono.

You must be plugging your phone in with a mono cord, I would try a different aux cable.

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B1X Four Bass Multi-Effects Processor With Expression Pedal, With 70+ Built-In Effects, Amp Modeling, Looper, Rhythm Section, Tuner, Battery Powered

Product ID: 267402118

Details

Brand
Zoom
Colour
Red
Item weight
835 g
Product dimensions
21.6L x 15.6W
Style
B1X FOUR

🎸9 versatile amp models

🔄30-second looper for live layering

🎛️71 pro-grade bass effects

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1730 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎸 Elevate your bass game—never miss a beat or a vibe!

ON THE GO POWER - Battery-powered design ensures your creativity flows anywhere, anytime.
PRO LEVEL EDITING - Free Zoom Guitar Lab software for Mac/Windows lets you customize and save presets effortlessly.
PLUG PLAY VERSATILITY - Standard guitar input plus aux input and amp/headphone output for ultimate connectivity.
SEAMLESS LIVE PERFORMANCE - Integrated 30-second looper and 68 rhythm patterns keep your groove locked in every set.
UNLEASH YOUR SIGNATURE SOUND - Over 70 built-in effects and 9 amp models to craft your unique bass tone.

The Zoom B1X Four is a compact, battery-powered bass multi-effects processor featuring 71 built-in effects, 9 amp models, a 30-second looper, and 68 rhythm patterns. With versatile input/output options and free editing software, it’s designed for bassists seeking professional sound shaping and seamless live performance flexibility.

Specifications

ASIN	B07MZQNKYQ
Amperage	9 Amps
Audio Output Effects	Reverb, Chorus, Delay, Amp Modeling
Brand Name	Zoom
Color	Red
Connector Type	1/4 inch (6.35mm) jack
Controls Type	Joystick
Customer Reviews	4.6 4.6 out of 5 stars (1,177)
Global Trade Identification Number	00884354020705
Hardware Interface	USB
Item Dimensions	15.7 x 21.6 x 5.1 centimeters
Item Dimensions L x W x H	21.6L x 15.6W x 5.2H centimeters
Item Type Name	Bass Multi-Effects Pedal
Item Weight	835 g
Manufacturer	Zoom
Manufacturer Part Number	B1X FOUR
Model Name	B1X FOUR
Model Number	B1X FOUR
Power Source	Battery Powered
Signal Format	Analog
Style	B1X FOUR
UPC	884354020705
Unit Count	1 Count
Voltage	9 Volts

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