Detail 01
Five simultaneous effects
A sound can use up to five effects at once.

Independent shopping perspective
The B1X FOUR is a bass multi-effects processor with more than 70 onboard effects and a built-in expression pedal. Compression, drive, modulation, and pitch-shifting options can be selected and adjusted from its dedicated controls, while the pedal handles real-time volume or effect-parameter changes. With 50 user patch locations, it can keep a working set of sounds organized for performance or recording. Its metal chassis and AC-or-battery operation suit a compact bass effects setup that needs to move between those settings.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
A sound can use up to five effects at once.
Detail 02
Provides 50 locations for saved effect setups.
Detail 03
Controls volume or an effect parameter while you play.
Detail 04
Use the stated footprint when planning space for the unit.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
It can control effect parameters or volume in real time.
Up to five effects can be used simultaneously.
It has a standard mono phone-jack input.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.