Zoom A1 FOUR - User Manual

You must read the Usage and Safety Precautions before use.
Operation Manual
Multi-Effects Processor
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Zoom A1 FOUR Specifications

General

Looper	30 seconds
Rhythm Patterns	68
Weight	340 g (without batteries)
Simultaneous Effects	5
Sampling Frequency	44.1 kHz
A/D Conversion	24-bit
D/A Conversion	24-bit
Display	LCD
Patches	50
Input	1/4'' instrument jack
Output	1/4'' stereo output jack
Power	4 AA batteries
Frequency Response	20 Hz - 20 kHz +1 dB, -3 dB (10 kΩ load)
USB	Micro USB

Summary

A1 FOUR;A1 X FOUR structure

Signal flow

Explains the path sound takes through effects, EQ, looper, and output.

Names of parts

Front Panel

Details the various controls and displays on the front of the unit.

Using patch memories (MEMORY mode)

Selecting patch memories and banks

Instructions for switching between patch memories and banks.

Editing effects (EDIT mode)

Adjusting effect parameters

How to adjust the values of effect parameters.

Using the tuner

Tuning instruments

Preventing feedback

Using the looper

Recording and playing loops

Instructions for recording, playing, and overdubbing loops.

Using the expression pedal (A1 X FOUR only)

Adjusting the pedal

Managing the firmware

Updating the firmware

Procedure for updating the device's firmware.

Troubleshooting