Zoom B2FOUR User Manual

Setting the UNDO function
This turns on/off the undo function that can be used to undo the last recorded overdub of a loop.
1. Turn on the Looper Effect Setting Screen (→Setting the looper effect).
Setting Explanation
ON This enables the UNDO function.
OFF This disables the UNDO function.
NOTE:
The looper recording time is 1.5 – 30 seconds (15 when UNDO is ON) for stereo, and 1.5 – 60 seconds (30
when UNDO is ON) for mono. To switch between stereo and mono, see “Setting the looper effect”.
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Zoom B2FOUR Specifications

General

Type	Bass Multi-Effects Processor
Simultaneous Effects	5
MIDI I/O	No
USB	1 x USB-C
Looper	Yes
Inputs	1 x 1/4" (instrument)
Outputs	1 x 1/4" (main out)
Power Source	4 x AA batteries
Headphones	1 x 1/8"