iConnectivity AUDIO4c User manual

User Guide
v2021-0002

v2021-0002

Interference with other electrical devices Radios and
televisions placed nearby may experience reception
interference. Operate this unit at a suitable distance from
radios and televisions.
Indoor use only To avoid the risk of electrocution and/or
damage to other connected equipment, this equipment must
not be used under wet or high moisture conditions. All
interconnecting cabling must also be indoors. Should moisture
suddenly increase, immediately disconnect power to the
equipment.
Power sources Ensure that correctly rated power outlets are
used with the supplied power supply.
Heat Keep this equipment away from all heat sources. Ensure
that sufficient ventilation and/or heat dissipation is provided for
the equipment and all connected devices.
Packaging Keep all packaging materials away from children.
Properly dispose of unwanted packaging.
Handling To avoid breakage, do not apply excessive force to
the switches, connectors or directly to the equipment. Do not
apply excessive bending force to the cables. Use the
connector casings of cables to attach and detach cables from
their receptacles to avoid damage to the cable and/or its
receptacles.
Ingestion Do not ingest the packaging, equipment,
attachments, or accessories. Do not ingest paint or remove
parts from the equipment or accessories. If this occurs,
immediately seek medical attention.
Care If the exterior becomes dirty, wipe with a clean, dry cloth.
Do not use liquid cleaners such as benzene or thinner, or
cleaning compounds or flammable polishes.
Keeping foreign matter out of your equipment Never set
any container with liquid in it near this equipment. If liquid gets
into the equipment, it could cause electrical damage,
breakdown, fire, or electrical shock. Be careful not to let metal
objects get into the equipment.
Keep this manual After reading this manual, please save it for
later reference.
Notice regarding disposal (EU only) Disposal of this product,
package, or cables must be done in an approved manner. Do
not discard this product, package, or cables along with ordinary
household waste. Disposing in the correct manner will prevent
harm to human health and potential damage to the
environment. Since the correct method of disposal will depend
on the applicable laws and regulations in your locality, please
contact your local administrative body for details.
FCC (USA)/IC (Canada) Regulation Warning This equipment
has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against
harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications. However, there is no guarantee that
interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or
television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
- Adjust the receiving antenna - Increase the separation
between the equipment and receiver
- Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected
- Consult the dealer or an experienced radio/TV technician for
assistance
Unauthorized changes or modifications to this system can void
the user's authority to operate this equipment.
Important notice to consumers This product has been
manufactured according to strict specifications and voltage
requirements applicable for use in the country of product
purchase. If you have purchased this product via the Internet,
through mail order, and/or via a telephone sale, you must verify
that this product is intended for use in the country in which you
reside.
WARNING
Use of this product in any country other than that for which it is
intended could be dangerous and could invalidate the
manufacturer’s or distributor’s warranty. Please also retain your
receipt as proof of purchase; otherwise, your product may be
disqualified from the manufacturer or distributor’s warranty.
CAUTION
Always keep children and pets under constant adult
supervision. The packaging, equipment, and included
accessories are not toys and must be kept out of reach of
children and pets. Use only under constant adult supervision.
v2021-0002

TABLE OF CONTENTS
TABLE OF CONTENTS
INTRODUCTION
Feature List
What’s in the Box?
System Requirements
HARDWARE DESCRIPTION
Device Tour
QUICK START GUIDE
Download Auracle for X-Series
AURACLE FOR X-SERIES SOFTWARE
Installation
Auracle for X-Series Software
First time configuration
Firmware Update
Audio Hookup- connecting a Mac, PC, iOS, or Android device
Sound check - Adjusting the output level to audio outputs on the rear of the AUDIO4c
Sound check - Headphones
Sound check - Adjusting the input level of analog inputs on the front of the AUDIO4c
MAIN MENU
Audio
Analog Inputs
Analog Outputs
Routing Mode Menu
Record
Play USB 1
Play USB 2
v2021-0002

Stream
Tooltips toggle
Analog 1/2 Mix
Analog 3/4 Mix
Headphones Mix
Sample Rate
Bit Depth
Clock Source
Back button
MIDI Routing
General Info
Source
Destination
Filter & Remap
Input/Output
Filter
Remap
Clear All
Back button
Presets
USB Host Reservation
Back button
Firmware
SPECIFICATIONS
Audio
MIDI
USB Host Port
AUDIO4c User Guide v2021-0002 Page 4

USB-C Ports
Power Adapter
Dimensions and Weights
Other
APPENDIX A: ADVANCED WINDOWS USERS
APPENDIX B: MORE RESOURCES
APPENDIX C: COMPLIANCE
Compliance Statement
Declaration of Conformity
Communication Statement
Disposal of Waste Equipment by Users in the European Union
AUDIO4c User Guide v2021-0002 Page 5

For more information about this and other products, please visit the
iConnectivity Knowledge Base on the iConnectivity Support Website.
Product Features, Specifications, and System Requirements may be subject to change.
The iConnectivity warranty policy may be found on our website at Warranty Policy.
Mac, macOS, OS X, and iOS are trademarks of Apple Inc., registered in the United States and/or
other countries.
Windows is a registered trademark of Microsoft Corporation in the United States and/or other
countries.
Android is a trademark of Google LLC.
iConnectivity and AUDIO4c are trademarks of iKingdom Corp. Features of this product are protected
under patent pending. For more details see iConnectivity Patents.
© iKingdom Corp. 2021
v2021-0002

INTRODUCTION
Congratulations on the purchase of your new AUDIO4c USB-Audio + MIDI interface!
iConnectivity makes every effort to develop simple and intuitive hardware and companion control
software. However, because your AUDIO4c interface implements so many advanced features, we
strongly recommend that you read this manual carefully, even if you are an experienced audio/MIDI
user and have quite the reddit following.
Feature List
● 4 XLR / ¼” TRS combo analog inputs
● 4 premium microphone preamplifiers with +48V phantom power
● 4 TRS ¼” balanced analog outputs
● 1 stereo ¼” headphone output
● DIN-MIDI port built-in (1-in 1-out)
● USB-MIDI host port (connect up to 8 USB MIDI class-compliant devices with a powered USB
hub)
● Auracle for X-Series software (Mac OS, Windows) configuration and setup
● Power/Charge a USB Type-C compatible device (up to 15W)
● Use up to 2 Mac OS/Windows/iOS/Android computer devices simultaneously
● Built-In comprehensive audio mixing and routing between connected USB devices
● High-resolution audio - up to 24-bit/96kHz AD/DA conversion
● Capacitive touch user controls
What’s in the Box?
● The AUDIO4c audio + MIDI Interface
● Power Supply: iConnectivity iCP4 (36W)
● USB-C to USB-C Cable
● USB-Adapter: female USB-C to male USB-A
AUDIO4c User Guide v2021-0002 Page 1

System Requirements
macOS
macOS X 10.11 (El Capitan) or newer
One free USB-A or USB-C port
PC/Windows
Windows 10
One free USB-A or USB-C port
iOS
iPad with USB-C port, or Lightning-equipped (iOS 9.3.5 or later) devices
via Apple Lightning to USB-Camera Adapter (sold separately)
Android
Version 8.0 or newer
AUDIO4c User Guide v2021-0002 Page 2

HARDWARE DESCRIPTION
Device Tour
AUDIO4c User Guide v2021-0002 Page 3

QUICK START GUIDE
Download Auracle for X-Series
Auracle For X-Series download
By default, your AUDIO4c is pre-configured to work with Digital Audio Workstation (DAW) software.
All the interface’s audio inputs are routed to the computer device(s) for recording, not directly to the
audio outputs; you won’t hear anything if, say, you plug in a mic without going through your
audio/music software.
Furthermore, all the audio in and out volumes are turned down and need to be raised. This Quick
Start Guide will show you how to get sound running in and out of your interface as simply as possible.
AURACLE FOR X-SERIES SOFTWARE
Installation
Auracle for X-Series Software
Windows users, please uninstall all older iConnectivity drivers and download the newest Unified
driver here at https://www.iconnectivity.com/windows-drivers before proceeding. You must have
administrative access to complete installation.
Open a web browser and navigate to https://www.iconnectivity.com/software/control-software.
Choose the appropriate operating system for your machine (Windows 10 or MacOS) and click the
yellow Auracle for X-Series link to download, and follow the on-screen prompts to complete.
AUDIO4c User Guide v2021-0002 Page 4

First time configuration
The AUDIO4c main menu in its natural habitat; populated in Auracle for X-Series software
Power on your AUDIO4c by attaching the appropriate attachment for your locale to the power supply,
and plug the power supply into a powered outlet. Plug the barrel end of the power supply into the
AUDIO4c. Using the included USB-C to USB-C cable (plus USB-C to USB-A adapter if necessary),
connect your computer to the AUDIO4c via an available USB device port.
Launch the Auracle for X-Series software. The AUDIO4c will appear on screen as a connected device
(as pictured above) along with any other iConnectivity interfaces you may have connected to your
computer.
A yellow hazard icon in the upper right corner of the AUDIO4c main menu indicates that a firmware
update is available. In this case, ensure that the USB-C cable is plugged into USB device jack 2
and follow the on-screen instructions to update the AUDIO4c firmware. If your computer is plugged
into USB device jack 1, simply remove the USB-Cable from USB device jack 1 and plug it in to device
jack 2. If you need device jack 2 to be available for charging a compatible device after firmware
installation, be sure to complete the firmware update process before unplugging the USB Cable from
USB device jack 2 and plugging the USB cable into USB device jack 1 again.
AUDIO4c User Guide v2021-0002 Page 5

Firmware Update
When updating firmware a warning screen will appear:
Take note of the instructions and click [OK] to proceed.
While updating, the unit will display rapidly flashing orange lights in the LED level bar while the
firmware updates. At this point it is critical that you perform the hokey pokey and congratulate yourself
on such a fine purchase during this time, with the knowledge that you are already better than your
friends and musical peers.
In the Auracle for X-Series main menu, the AUDIO4c icon will disappear for a short time. The
AUDIO4c icon will reappear again without the previous yellow hazard warning to indicate that the
firmware is now current.
Audio Hookup- connecting a Mac, PC, iOS, or Android device
Connect a Mac, PC, iOS, or Android device to an available USB Device port, using the supplied
USB-C cable, and USB-C to USB-A adapter if necessary.
Connect your powered monitors or power amp and speakers via ¼” TRS or TS cables to the
AUDIO4c Audio Outputs 1&2.
Open your DAW and select the AUDIO4c as the audio output device. Once the AUDIO4c is selected,
it may be necessary to route audio from the master bus of your DAW to outputs 1&2 of the AUDIO4c
at the master track level.
Check your powered speakers or power amp, as well as the output level on your DAW to ensure that
volume is at a safe listening level before playing back audio.
Play some test audio, preferably in a loop. You may not hear anything until you bring up the output
level. Follow the instructions in the next section to adjust audio levels.
AUDIO4c User Guide v2021-0002 Page 6

Sound check - Adjusting the output level to audio outputs on the rear of the AUDIO4c
There are two ways to adjust the output level: directly on the front panel Interactive Display, or using
the Auracle for X-Series software’s Audio Mixer. For information on using Auracle for X-Series
software to mix audio levels, proceed to the Audio section of the Main Menu.
Using the front panel Interactive Display:
Signal Level Mode:Touch the region centered around [Out] on the bottom row of the Interactive
Display until the [Out] indicator turns green. A green [Out] LED as pictured above indicates that the
LED meters are in Signal Level Mode. In this mode the LED meters will display the level of audio
being sent to the outputs highlighted green in the top row of the Interactive Display. To select an
output or outputs for monitoring using the LED meter, touch the region of the output number(s) you
wish to monitor until it turns green.
In the diagram above, outputs 1 & 2 are selected for visual monitoring using the LED meters on the
right. Output 1 is slightly higher than output 2 as indicated by the differing levels in the left and right
LED meters. Note that turning the rotary encoder while in Signal Level Mode has no effect.
Gain Set Mode: Touch the region centered around [Out] on the bottom row of the Interactive Display
until the [Out] indicator turns red. A red [Out] LED indicates that the LED meters are in Gain Set
Mode. Select the analog output channel you wish to adjust by touching the regions centered around
the corresponding number of the channel you want to adjust in the upper row of the interactive
display. When the channel(s) you intend to adjust are highlighted in green, turn the rotary encoder
clockwise to increase gain level(s) of the selected output(s). Turn the rotary encoder
counter-clockwise to decrease leve(s) of the selected output(s).
AUDIO4c User Guide v2021-0002 Page 7

In the diagram above, channels 1 & 2 have been selected and the gain for both channels has been
increased to 0 Db (maximum output level).
Sound check - Headphones
Signal Level Mode:Touch the region centered around [Phones] on the bottom row of the Interactive
Display until the [Phones] indicator turns green. A green [Phones] LED indicates that the LED
meters are in Signal Level Mode. In this mode the LED meters will display the level of audio being
sent to the [Phones] socket on the rear of the AUDIO4c.
In the diagram above, the [Phones] output is selected and the audio level to the phones output is
approximately -10 Db.
!!! USE EXTREME CAUTION WHEN ADJUSTING VOLUME TO HEADPHONES !!!
Gain Set Mode:Touch the region centered around [Phones] on the bottom row of the Interactive
Display until the [Phones] indicator turns red. A red [Phones] LED indicates that the LED meters are
in Gain Set Mode. In this mode, you can use the rotary encoder to the right of the Interactive Display
to adjust the level of output to the Phones socket. The LED meters will display the level of audio
being sent to the Pditedhones socket on the rear of the AUDIO4c. Turn the rotary encoder clockwise
to increase the gain level of the headphones output. Turn the rotary encoder counterclockwise to
decrease the gain of the Phones output.
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In the diagram above, the [Phones] output is selected and the audio level to the Phones output is
approximately -15 Db as indicated by the orange LEDs on the LED meter on the right of the
interactive display.
Sound check - Adjusting the input level of analog inputs on the front of the AUDIO4c
Signal Level Mode:Touch the region centered around [In] on the bottom row of the interactive
display until the [In] indicator turns green. A green [In] LED indicates that the LED meters are in
Signal Level Mode. In this mode the LED meters will display the level of audio being received at the
input(s) highlighted green in the top row of the Interactive Display. To select an input for monitoring
using the LED meter, touch the region of the input number you wish to monitor until it turns green.
In the diagram above, analog input 3 is selected and is currently metering in the single yellow region
of the LED meter. Note that turning the rotary encoder while in Signal Level Mode has no effect.
Gain Set Mode: Touch the region centered around [In] on the bottom row of the Interactive Display
until the [In] indicator button turns red. A red [In] LED indicates that the LED meters are in Gain Set
Mode. Select the analog input channel you wish to adjust by touching the regions centered around
the upper row of the interactive display. When the channel(s) you intend to adjust are highlighted in
green in the top row, turn the circular encoder to the right clockwise to increase gain level. Turn the
rotary encoder counterclockwise to decrease the gain level of the selected input.
In the diagram above, channel 1 has been selected in the top row of the display and the [In] indicator
on the bottom row is red, indicating Gain Set Mode. The rotary encoder has been turned clockwise to
AUDIO4c User Guide v2021-0002 Page 9

increase the input level of analog input 1 to roughly 50 Db as indicated by the yellow LED in the left
column of the LED meter to the right of the interactive display.
Sound Check - Activating 48V phantom power per input
Consult your equipment documentation to determine if 48V phantom power is necessary before
proceeding.
[48V] Phantom Power:To use the Interactive Display to activate phantom power to select inputs,
touch the region centered around [48V] on the bottom row of the interactive display until the [48V]
indicator button turns green. Choose the input(s) you wish to deliver 48V power to and select by
touching the region centered around the appropriate number. The LED of the number region you
selected will light up green, indicating that 48V power is being sent to the input channel.
In the diagram above, input channels 1 and 3 are selected and are receiving 48V phantom power.
AUDIO4c User Guide v2021-0002 Page 10

MAIN MENU
Audio
Analog Inputs
The Analog Inputs menu displays LED meters and their respective faders to control input level. Input
level can be adjusted by dragging the on-screen fader [arrow 1 above] or by clicking the current Db
value in the gray box directly below the fader and volume meter input array and typing in the Db
amount you want for gain in the range 0-60Db [arrow 2 above]. Note that the default configuration is
that all Analog Inputs are at 0 Db as seen in the image above.
To set your analog input level safely, test your input source by speaking into the connected mic or
playing the connected instrument at a level similar to your expected performance level. Slowly
increase the input level on the connected channel using the method described above until the
channel LED meter that corresponds to the input channel you’re adjusting reads mostly green most of
the time, with some yellow during volume peaks, trying to stay out of the red to avoid clipping.
[Mute] Button
The [Mute] button mutes audio for the channel selected when the [Mute] button is clicked and
highlighted in red. Muting is bypassed if the [Mute] button is grayed out.
[48V]
The [48V] button supplies 48V phantom power to an input channel when clicked and highlighted in
orange. If you’re not sure if your input device requires phantom power, consult the device
documentation and see this article regarding phantom power.
AUDIO4c User Guide v2021-0002 Page 11

[Line]
Selects the input signal level between mic ([Line] button is grayed out), and line level ([Line] button is
clicked and highlighted in yellow: .
For more information about choosing the right signal level for your input source, see this helpful
article from Sweetwater.
Analog Outputs
Pictured above are the LED meters and respective faders to control output level per output. Output
level can be adjusted by dragging the on-screen fader up or down, or by clicking the current Db value
in the gray box directly below the fader and volume meter output array and typing in the Db amount
you want for gain in the range -60 to 0 Db.
Buttons for [Mute] and [Stereo] select per channel are located below the LED meter and fader array.
Stereo is selected by default; unselecting [Stereo] will produce two mono output controls in a 1:1
configuration to analog outputs as pictured below.
Analog outputs 1 & 2 set to mono by unselecting the [stereo]button
AUDIO4c User Guide v2021-0002 Page 12

Routing Mode Menu
This menu dictates the flow of audio between connected USB devices and from analog input sources
to USB ports.
All routing tables below refer to audio routing between USB device ports including analog inputs.
To route audio and adjust levels to analog outputs 1-4 and the headphone mix for modes
[Record],[Play USB1], and [Play USB2], click the appropriate gray output button for the output you
wish to control on the analog output selection menu in the middle of the Audio page.
[Stream] mode contains the same output routing options as [Record], [Play USB1], and [Play USB2]
with two additional output menus for routing audio between USB ports.
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