Zoom UAC-232 User manual

Quick Tour
© 2023 ZOOM CORPORATION
Copying or reprinting this manual in part or in whole without permission is prohibited.
You might need this manual in the future. Always keep it in a place where you can access it easily.
The contents of this manual and the specifications of the product could be changed without notice.
You must read the Usage and Safety Precautions before use.
An Operation Manual with more detailed explanations and other documents
related to this product can be viewed on the following website.
www.zoom.jp/docs/uac-232

2
Making connections
Connecting the UAC-232 to a computer
The power indicator
will light.
USB Type-C
A USB cable that supports data transfer must be used.
■Mac
In the Audio MIDI Setup app on the Mac, select the ZOOM UAC-232 in the Audio Devices window,
and set the input and output formats to 32-bit oat.
■Windows
A dedicated driver must be installed.
Download it from the product page on the ZOOM website (zoomcorp.com) and follow the
instructions in the installation guide to install it.
USB cables and adapters that match the connectors are necessary to connect iOS and iPadOS
devices.

3
Connecting instruments
Guitar Bass
When directly connecting a guitar or bass, press so
that it lights.
Connecting mics
1: GND
2: HOT
3: COLD
XLR
12
3
Dynamic mic Condenser mic
When connecting a condenser mic, press so it
lights.

4
Connecting keyboards and mixers
Mixer
Keyboard
Connecting MIDI Devices
MIDI keyboard,
MIDI controller
MIDI OUT jack MIDI OUT jackMIDI IN jack MIDI IN jack
Sound module
When using a MIDI port with a DAW, for example, follow the instructions below when making settings.
The UAC-232 or ZOOM UAC-232 Mix Control might not function properly otherwise.
Mac
Use ZOOM UAC-232 MIDI I/O Port. Do not use for ZOOM UAC-232 Mix Control.
Windows
Use ZOOM UAC-232 MIDI. Do not use MIDIIN2/MIDIOUT2 (ZOOM UAC-232 MIDI).

5
Connecting headphones and monitor speakers
Connect the monitor speakers
before powering them.
Headphones Monitor speakers
Adjusting the volume
These adjust volumes independently.
Enabling direct monitoring
Input sounds can be monitored with low latency before they pass through the computer.
Press so that it lights.
When using direct monitoring, mute the
monitoring sound output from the DAW app.
ZOOM UAC-232 Mix Control app
The dedicated ZOOM UAC-232 Mix Control app, which supports Windows/Mac
computers and iOS/iPadOS devices, can be used to control the internal mixer of the
UAC-232 and adjust the stereo mix for direct monitoring and streaming.
Download it from the ZOOM website (zoomcorp.com) or the App Store.

6
Recording
Launch the DAW app and create a project
with 32-bit oat resolution.
Select the ZOOM UAC-232 as the
input device.
Recording
New project
32-bit oat
●Record
Input:
ZOOM UAC-232
Output:
ZOOM UAC-232
Refer to the DAW app manual for details about how to use it.

7
Functions of parts
■Front
①Input jacks 1–2
These input jacks have built-in mic preamps.
Connect mics, keyboards, guitars and other
audio sources to them. These can be used
with both XLR and standard phone (balanced
or unbalanced) plugs.
②PHANTOM POWER switches
These turn +48V phantom power on/off. Set
these to on when connecting condenser mics.
③GUITAR/BASS switch
Use this to enable Hi-Z support for the Input
jack 1 circuit. Turn this on as necessary for
the connected guitar or bass.
④SIGNAL indicators
These light when signals are being input.
⑤PHONES jack
This outputs a stereo signal. Connect head-
phones here.
⑥PHONES knob
Use this to adjust the headphone volume.
⑦Power indicator
This lights when the power is on.
⑧OUTPUT knob
Use this to adjust the volume of the signals
output from the OUTPUT jacks.
⑨DIRECT MONITOR switch
Turn this on to directly monitor sounds from
the input jacks before they pass through the
computer.
⑩32-BIT FLOAT indicator
This lights when the UAC-232 is operating at
32-bit oat resolution.
■Back
①DC 5V port (Type-C)
Use this power supply USB port to connect an
AC adapter or portable battery.
②USB (Type-C) port
Use this USB port to connect with a computer
or iOS/iPadOS device.
③MIDI IN/OUT connectors
Connect the MIDI OUT and IN connectors of
other MIDI devices here.
④OUTPUT connectors
These output the left (L) and right (R) chan-
nels of stereo signals. Connect these to
speakers with built-in ampliers, for example.

Z2I-4787-01
ZOOM CORPORATION
4-4-3 Kanda-surugadai, Chiyoda-ku, Tokyo 101-0062 Japan
zoomcorp.com
Product names, registered trademarks and company names in this document are the property of their respective companies.
All trademarks and registered trademarks in this document are for identification purposes only and are not intended to infringe
on the copyrights of their respective owners.
Troubleshooting
Not recognized by computer when connected
→Use a USB cable that supports data transfer.
→Conrm that the USB cable is connected to on
the UAC-232, not to .
Cannot select or use the UAC-232 device
→Conrm that the UAC-232 has been connected cor-
rectly on the computer.
→Quit all software that is using the UAC-232. Then,
disconnect and reconnect the USB cable connected
to the UAC-232.
→Connect the UAC-232 directly to a USB port on the
computer. Do not connect it using a USB hub.
→When connecting to a Windows computer, installing
the dedicated driver can resolve problems not only
with DAWs but also with other applications.
→Reinstall the driver.
The sounds of devices connected to input jacks are
distorted, too quiet or silent
→When using a condenser mic, set to ON.
→Use or to adjust the volume.
→Use UAC-232 Mix Control to adjust the waveform
display size.
Cannot play or record
→Conrm that “ZOOM UAC-232” is selected in the
“Sound” settings of the computer being used.
→Conrm that UAC-232 is set for input and output in
the software being used.
→Quit all software that is using the UAC-232. Then,
disconnect and reconnect the USB cable connected
to the UAC-232.
Playback sound cannot be heard or is quiet
→Check the connections and volume settings of the
speakers.
→Use or to adjust the volume.
Cannot be used with an iOS/iPadOS device
→Conrm that the external power supply is connected
correctly.
Sound skips during playback or recording
→If the audio buffer size of the software being used
can be adjusted, increase it.
→Turn off the automatic sleep function and other com-
puter power saving settings.
→Connect the UAC-232 directly to a USB port on the
computer. Do not connect it using a USB hub.