Yamaha Rio3224d Manual

							Controls and Functions
 Owner’s Manual
11
• Switches 5 and 6 (REMOTE) When you plan to monitor or control the Rio from a 
digital mixing console, these switches determine 
whether to use an Rio-native device (such as a CL 
series product) or a non-Rio-native device. 
Information on which devices feature Rio-native 
support is available at the Yamaha pro audio website 
product page:
http://www.yamahaproaudio.com/products/
• Switches 7 and 8 (START UP MODE) These switches determine whether part of the internal 
memory is initialized when the unit starts up, or uses 
the previous settings (i.e., settings used prior to the 
most recent power-off ).
If you plan to connect an Rio-native device, such as a 
CL series product, set the switches to [REFRESH]. 
The Rio will not input or output audio until the 
connected Rio-native device transmits its settings to 
the Rio, so that the Rio will not output audio 
accidentally.7[SYSTEM ] Indic a tors
These indicators show the Rio’s operating status. If the 
green indicator lights steadily and the red indicator 
turns off, the unit is operating normally.
When power to the unit is turned ON, if the green 
indicator turns off, or if the red indicator lights or 
flashes, the unit is not functioning properly. In this 
case, refer to the “Messages” section (see page 17).
8[SYNC] Indicators
These indicators show the operating status of the Rio’s 
internal Dante network capability.
If the green indicator lights, the unit is operating as a 
word clock slave and synching to the word clock.
If the green indicator flashes, the unit is operating as 
the word clock master.
If the power to the unit is turned on but the green 
indicator is turned off, the unit is not functioning 
properly. In this case, refer to the “Messages” section 
(see page 17).
If the orange indicator lights or flashes, refer to the 
“Messages” section.
9[+48V MASTER] Switch
This is the master switch for the unit’s +48V phantom 
power supply.
If the [+48V MASTER] switch is off, no phantom 
power will be supplied to the unit’s input connectors 
even if the individual input phantom power settings 
are ON. In this case, the [+48V] indicators will flash 
on channels for which phantom power is turned ON.
0Power Indicator
Lights when AC power to the unit is ON.
APower Switch ( )
Turns power to the unit ON or OFF.
CAUTIONS:
• Rapidly turning the unit on and off in succession can cause 
it to malfunction. After turning the unit off, wait for about 6 
seconds before turning it on again.
• Even when the power switch is turned off, electricity is still 
flowing to the product at the minimum level. When you are 
not using the product for a long time, make sure to unplug 
the power cord from the wall AC outlet.
BAES/EBU OUT Connectors 1/2–7/8
(Rio3224-D only)
These XLR-3-32 type balanced connectors deliver 
AES/EBU format digital output from the unit’s 
corresponding output channels. Each connector 
outputs 2-channel digital audio.
COUTPUT +4 dBu Connectors 1–16 {1–8}
These XLR-3-32 type balanced connectors deliver 
analog output from the unit’s corresponding output 
channels. Nominal output level is +4 dBu.
Switch Setting Description
NATIVE An Rio-native device will control  the Rio.
AD8HR A non-Rio-native device will  control the Rio as AD8HRs.
In this case, Rio3224-D and 
Rio1608-D are recognized as 
four AD8HRs and two AD8HRs 
respectively.
Set the UNIT ID number 
between 1 and F. The unit with 
any other UNIT ID numbers will 
not be controllable.
INITIALIZE Initialize the settings. For details  on the settings that are 
initialized, refer to “Initializing 
the Rio” (page 14). 
Switch Setting Description
REFRESH The Rio starts up with part of  the internal memory initialized.
The following settings are 
initialized.
RESUME The unit starts up using the  settings assigned prior to the 
most recent power-off.
56
56
56
78
HA GAIN –6 dB
+48V OFF
HPF OFF
HPF FREQ 80Hz
Gain Compensation OFF
Dante Patch OFF
78 
						

							Controls and Functions Owner’s Manual
12
Rear Panel
D[PRIMARY]/[SECONDARY] Connectors
The Rio can be connected to other Dante-compatible 
devices (such as a CL-series product) via these 
etherCON (RJ45) connectors using standard Ethernet 
cables (CAT5e or better recommended).
If DIP switch 4 on the front panel is set upward (to 
DAISY CHAIN), audio signals coming into one of 
these connectors will be output from the other. Refer 
to “Daisy Chain Network” in the “About Connections” 
section (see page 13) for more information on daisy 
chain connections.
If DIP switch 4 on the front panel is set downward (to 
REDUNDANT), the [PRIMARY] connector will be 
used for primary connection, and the [SECONDARY] 
connector will be used for secondary (backup) 
connection. If the unit is unable to transmit signals 
through the [PRIMARY] connector for some reason 
(e.g., due to damage or accidental removal of the 
cable, or a failed network switch), the [SECONDARY] 
connector will automatically take over the 
connection. Refer to “About Redundant Networks” in 
the “About Connections” section (see page 13) for 
more information on redundant networks.
NOTE
•The use of Ethernet cables with Neutrik EtherCon CAT5e 
compatible RJ-45 plugs is recommended. Standard RJ45 
plugs can also be used.
• Use STP (shielded twisted pair) cable to prevent 
electromagnetic interference. Make sure that the metal 
parts of the plugs are electrically connected to the STP 
cable shield by conductive tape or comparable means.
• Connect only Dante-compatible devices or 
GbE-compatible devices (including a computer).
E[LINK/ACT] Indicators
These indicators show the communication status of 
the [PRIMARY] and [SECONDARY] connectors.
They flash fast if the Ethernet cables are connected 
properly. 
F[1G] Indicators
These indicators light when the Dante network is 
functioning as Giga-bit Ethernet.
GAC IN Connector
Connect the supplied AC power cord here. First, 
connect the power cord to the device, then insert the 
power cord plug into the AC outlet.
The supplied power cord features a special latching 
mechanism (V-LOCK) to prevent the power cord 
from being accidentally disconnected. Connect the 
power cord by inserting the power cord fully until it is 
locked.
CAUTION:
Be sure to turn the power off 
before connecting or 
disconnecting the power cord.
Press the latch button on the 
plug to disconnect the power 
cord.
H[FAN] Switch
Sets the internal cooling fan to operate at either 
[HIGH] or [LOW] speed.
This switch is set to [LOW] when the unit is initially 
shipped from the factory. As long as the unit is 
operated within the specified ambient temperature 
range either the [LOW] or [HIGH] setting can be 
used. The [HIGH] setting is recommended if the 
ambient temperature is high, if the unit is in direct 
sunlight even if the ambient temperature is within the 
specified operating range, and in any situation in 
which fan noise is not a problem.
If two or more Rio units are mounted in the same rack 
and the fan speed is set to [LOW], leave a 1U rack 
space between every two units. Also either leave the 
open spaces uncovered or install appropriate 
ventilating panels to minimize the possibility of heat 
buildup. If three or more Rio units are mounted 
without space in the same rack, set the fan speeds to 
[HIGH].
EDHFG 
						

							About Connections
 Owner’s Manual
13
About Connections
There are two ways to connect the Rio to a Dante network.
NOTE
A daisy chain connection is suitable for a simple system 
with a small number of devices. 
Use a star network if a large number of devices are 
connected.
Daisy Chain Network
A daisy chain is a wiring scheme in which multiple devices 
are connected together in sequence. In this way, 
networking is simple and requires no network switches.
If you connect a large number of devices, you must set a 
higher latency value to avoid skipping audio that could be 
caused by an increased delay in signal transfer among the 
devices. Also, if a connection is broken in a daisy chain 
network, the signal flow is interrupted at that point and no 
signal will be transferred beyond that point.
Star Network
In a star network, each device is connected to a central 
network switch. Using a GbE-compatible network switch 
enables you to configure a wide-band, large-scale network. 
We recommend a network switch that features various 
functions to control and monitor the network (such as Qos, 
the ability to assign priority to data flows - e.g., clock 
synchronization or audio transmission on certain data 
circuits.)
With this topology, it is common to configure a redundant 
network so that an unexpected network problem will not 
affect any audio or otherwise stable communications.
About Redundant Networks
A redundant network consists of two circuits, a primary 
circuit and a secondary circuit. Normally, the network 
operates on the primary circuit. However, if the primary 
connection is broken, the secondary circuit will 
automatically take over communications. Therefore, using 
a redundant network with a star topology would increase 
communication stability relative to a daisy chain network.
0123456789ABCDEF
0123456789ABCDEF
01234EF
01234EF
1  2  3  4  5  6  7  8ON
1  2  3  4  5  6  7  8ON
CL5
Rio3224-D (ID#1) Rio3224-D (ID#2)
SECONDARY PRIMARY
PRIMARYRio3224-D (ID#1)0123456789ABCDEF
Rio3224-D (ID#2)0123456789ABCDEF
1  2  3  4  5  6  7  8ON
CL5
01234EF
01234EF
Computer
Network switch A
Network switch B
Primary Dante
Secondary Dante 
						

							About Connections Owner’s Manual
14
About Dante Controller
Dante Controller is a software application that allows 
configuration and audio routing of Dante networks. Use 
this application if you plan to connect or set up 
Dante-enabled devices that do not feature Rio-native 
support. Please download the Dante Controller application 
from the website listed below.
Please note that Dante Controller Version 3.2.1 or later 
supports Rio.http://www.yamahaproaudio.com/
To run Dante Controller, a computer must feature a 
GbE-compatible Ethernet connector.
Refer to the Dante Controller owner’s manual for details on 
Dante Controller.
In Dante Controller, make the following basic settings:
• [Network View]  → [Routing] →  I/O patching 
• [Network View]  → [Clock Status]  → Wo r d  c l o c k  m a s t e r  
setting
• [Device View]  → [Config]  → Sampling rate setting
Initializing the Rio
To return (initialize) the internal memor y to its factor y-set 
state, for example if you move the unit to a different 
location, proceed as follows.
1.Turn the unit off.
2.On the front panel, set DIP switch 5 and 6 
down (INITIALIZE).
3.Turn the unit on.
During initialization, the [SYSTEM] and [SYNC] 
indicators remain turned off. When initialization is 
complete, each indicator lights up. 
4.Verify that initialization is completed, and 
turn the unit off.
5.Set DIP switches 5 and 6 (REMOTE) according 
to your setup.
6.Turn the unit on.
The Dante settings and HA parameters will be 
initialized.
*1 “xx” refers to a UNIT ID value, and “nnnnnn” refers to the lower 
six digits of the Dante Primary MAC Address. Parameter Initialized setting
Dante Word Clock 48kHz (slave) Pull up/down  None
Latency 1.0ms
Encoding PCM 24bit
SECONDARY Port Daisy Chain
IP Address Auto (Link Local)
Primary IP address 0.0.0.0
Secondary IP address 0.0.0.0
Device Label Y0xx-Yamaha-Rio3224-D (Rio1608-D)-nnnnnn *1
Channel Label 
HA HA GAIN -6dB +48V Off
HPF Off, 80Hz
GAIN 
COMPENSATION Off, -6dB
56ON12345678 
						

							Head Amp Control
 Owner’s Manual
15
Head Amp Control
The Rio head amplifiers can be remotely controlled from a 
host device, such as a compatible Yamaha digital mixing 
console. 
Control from an Rio-native 
Device
The Rio head amplifiers can be controlled remotely from 
an Rio-native digital mixing console, such as a CL series 
product.
The connected Rio-native device displays the model name 
and UNIT ID number of the corresponding Rio unit to be 
controlled.
If you plan to connect a device that features Rio native 
support to monitor and control the head amplifiers, refer to 
the owner’s manual for the corresponding device.
Control from a Device That 
Does Not Feature Rio-Native 
Support
This section explains how to configure the Rio settings that 
are required to control the Rio as AD8HR units from a 
device that does not feature Rio-native support.
For more information, please refer to the “Dante-MY 
16-AUD & R Series HA Remote Control Guide” that is 
downloadable from the website listed below. http://www.yamahaproaudio.com/
NOTE
The following Yamaha non-Rio-native devices enable you 
to control the Rio as AD8HRs. To connect such a device, 
first install a Dante-MY16-AUD card (firmware version 3.3.8 
or later) into the Mini-YGDAI slot.
M7CL, LS9, DM1000, DM2000, PM5D/DSP5D, 
DME64N/24N
Setting the DIP Switches
While the power to the unit is off, flip DIP switch 5 down 
and DIP switch 6 up.
NOTE
If REMOTE has been set to [AD8HR], START UP MODE 
will be set to [RESUME] regardless of the DIP switch 
setting.
Setting the UNIT ID
The Rio3224-D will be assigned four virtual IDs (as 
AD8HR Device IDs) if the DIP switches are set to 
[AD8HR]. The Rio1608-D will be assigned two virtual IDs 
if the DIP switches are set to [AD8HR].
If you combine Rio3224-D and Rio1608-D or add an 
AD8HR or SB168-ES in the network, make sure that the 
virtual IDs or Device IDs are all unique. The Rio UNIT IDs 
and virtual IDs are organized as follows:
Set the Rio correctly so that you can control it as AD8HRs. 
In addition, scene recall can be used to recall all head 
amplifier settings at once. Refer to the digital mixing 
console owner’s manual for details on head amplifier 
control.
Head Amplifier Parameters 
That Can be Monitored and 
Controlled
56
UNIT ID 
(Hexadecimal) Virtual ID (Hexadecimal)
Rio3224-D Rio1608-D
11, 2, 3 ,4 1, 2
25, 6, 7, 83, 4
39, A, B, C5, 6
4D, E, F, 107, 8
Parameter Description
+48V Turns +48V phantom power ON or 
OFF for each channel.
HA GAIN Adjusts gain from –6 dB to 66 dB in 
1-dB increments.
HPF Turns the high-pass filter ON or 
OFF.
HPF FREQ Adjusts the cutoff frequency of the 
high-pass filter (12 dB/Oct.) from 20 
Hz to 600 Hz in 60 steps.
METER 
(Rio-native device only) Displays a level meter for each 
input channel.
Device ID Displays the automatically 
assigned Device ID numbers 1–3C 
(corresponding to AD8HR device 
ID numbers). Four ID numbers are 
assigned to each Rio3224-D unit 
and two numbers to each 
Rio1608-D unit.
+48V Master SW Displays the [+48V MASTER] 
switch ON/OFF status of the +48V 
phantom power supply.
Gain Compensation 
(Rio-native device only) Turns the Gain Compensation ON 
or OFF. 
						

							Troubleshooting Owner’s Manual
16
Troubleshooting
Tr o u b l e s h o o t i n g
SymptomCausePossible Solution
The power won’t turn on. 
The power indicator doesn’t light. The power cable is connected improperly. Connect the power cable properly (see 
page 12).
The [POWER] switch is not turned ON. Turn the [POWER] switch ON. If the power still  will not come on, refer the problem to your 
Yamaha dealer.
The unit is not receiving an input sig-
nal. The input cables are not connected properly. Connect the cables properly.
The source device is not delivering an appropri-
ate signal. Output a signal from the source device and 
make sure that the SIG indicators on the appro-
priate channels will light. 
The internal head amplifier gain is not set to an 
appropriate level. Set the internal head amplifier gain to an appro-
priate level.
The DIP switches are set to REFRESH, but the 
Rio-native device has not started up. Start the Rio-native device to send the setting to 
the Rio.
The input level is too low. A condenser microphone is connected. Turn the [+48V MASTER] switch ON.
Turn phantom power for the corresponding 
channel(s) ON from the Rio-native device.
The internal head amplifier gain is not set to an 
appropriate level. Set the internal head amplifier gain to an appro-
priate level.
No sound is heard. The cables are not connected properly. Connect the cables properly.
The DIP switches are set to REFRESH, but the 
Rio-native device has not started up. Start the Rio-native device to send the setting to 
the Rio.
Output is muted. Unmute the output on the Rio-native device.
The head amp cannot be controlled. The Rio has not been mounted on the RACK of  the Rio-native device. Mount the Rio on the RACK of the Rio-native 
device.
Adjusting the internal head amp gain 
does not change the audio level. The Gain Compensation function is turned on.
If you are not using the Gain Compensation 
function, turn it off.
Adjustment of the [UNIT ID] rotary 
switch or DIP switch settings seems to 
be ineffective. You may have adjusted the setting while the 
power is ON.
Turn the power OFF, then change the setting.
The Dante Controller does not recog-
nize an R-series unit. An incorrect value is assigned to the IP address 
for Dante. Use the DIP switches to initialize the unit. 
						

							Troubleshooting
 Owner’s Manual
17
Messages
Errors, warnings, and certain other types of information 
are displayed via the Rio front panel indicators. Messages 
are also displayed in the Dante Controller Error Status 
field.
Each indicator lights or flashes as described below:
Error Messages
If one of the following errors has occurred, the device will 
not operate. Until the error is resolved, the green SYSTEM 
indicator will be turned off, and all indicators for all I/O 
channels will continue to flash.
In addition, certain errors will cause the red SYSTEM 
indicator to light or flash.  The following errors affect the settings or the hardware. 
However, the device will still be usable. The green SYSTEM 
indicator will light, and all indicators for all I/O channels 
will work normally.
In addition, certain errors will cause the red SYSTEM 
indicator to light or flash.
No call-out The indicator is off.
Light The indicator remains lit steadily.
Flash The indicator continues to flash.
Flash x2 The indicator fl
ashes twice cyclically.
Flash x3 The indicator flashes  three times cyclically.
SYSTEM 
Indicators Description Possible Solution
An internal error has 
occurred. The device has 
failed. Contact your 
Yamaha dealer for 
repair. 
Communication 
cannot occur 
because the MAC 
address setting has 
been corrupted.
UNIT ID is not 
unique. Set a unique UNIT 
ID number within the 
Dante network.
The device’s DIP 
switches are not set 
correctly. Check the DIP switch 
settings, and set 
them correctly.
Flash x2
Flash x3
Light
Flash
SYSTEM 
Indicators Description Possible Solution
The number of Dante 
transmit flows 
exceeded the limit. Reduce the number 
of flows by, for 
example, using 
Dante Controller to 
change some of the 
transmit flows to 
multicast.
The cooling fan has 
stopped. Check that nothing is 
caught in the fan. 
If the problem 
persists, consult your 
Yamaha dealer. 
The internal memory 
has been corrupted. When using the unit 
in [NORMAL] mode, 
if the problem 
persists even after 
turning the power off 
and on again, 
consult your Yamaha 
dealer.
You changed the 
positions of the 
device setting DIP 
switches or rotary 
switch, or changed 
the Dante settings 
from Dante 
Controller.
Therefore, the 
positions of the 
device setting DIP 
switches do not 
match the actual 
Dante settings. If the Device Lock 
setting was enabled 
from Dante 
Controller, disable 
the setting, or check 
the device setting 
DIP switch positions, 
and set them to 
accommodate the 
current situation.
Flash
Light
Flash x2
Light
Flash x3
Light
Light
Light 
						

							Troubleshooting Owner’s Manual
18
Warning Messages
The indicators will light and/or flash as shown until the 
cause is resolved.
If the green [SYNC] indicator is unlit, the unit’s clock is 
unconfirmed.
If the green indicator is flashing, the unit is the clock 
master.
If the green indicator is lit, the unit is the clock slave and the 
clock is synchronized.
Information Messages
The indicators will remain lit and/or flashing cyclically to 
report the status.
If the orange [SYNC] indicator is unlit, the unit is operating 
normally.
If the green [SYNC] indicator is unlit, the unit’s clock is 
unconfirmed.
SYNC Indicators Description Possible SolutionThe word clock is not 
set correctly.
Set the clock 
master and 
sampling frequency 
correctly on the 
Rio-native device or 
in Dante Controller.
Dante Network circuit 
is broken. Make sure that the 
Ethernet cables are 
not removed or 
short-circuited.
Other Dante-compatible 
devices cannot be 
found due to an 
incorrectly-wired Dante 
Network.Make sure that the 
Ethernet cables are 
connected 
correctly.
SYNC Indicators Description Possible Solution A non-GbE-compatible 
device is connected. When transferring 
audio via Dante, 
use device that 
supports GbE.
The [SECONDARY] 
connector has taken 
over communications 
during redundant 
network operation. Check the circuit 
connected to the 
[PRIMARY] 
connector.
An abnormality has 
occurred on the circuit 
connected to the 
[SECONDARY] 
connector during 
redundant network 
operation. Check the circuit 
connected to the 
[SECONDARY] 
connector.
Flash
Flash x2
Flash x3
Light
Light 
or 
flash
Flash
Light 
or 
flash
Flash x2
Light 
or 
flash
SYNC Indicators Description Explanation
Synchronizing on a 
Dante network
Please wait until 
started has 
completed or until 
the unit has finished 
synchronization. 
It may take up to 45 
seconds for 
completion.
Waiting to receive 
setting dataIf START UP MODE 
is set to REFRESH 
on the R-series unit, 
the input/output will 
be muted until the 
unit receives setting 
data after it starts 
up.
The unit is functioning 
correctly as the word 
clock master. The unit is 
operating as the 
word clock master.
The unit is functioning 
correctly as the word 
clock slave. The unit is 
operating as the 
clock slave and the 
clock is 
synchronized.
Light
Flash
Light 
						

							Specifications
 Owner’s Manual
19
Specifications
General Specifications
*1. Total Harmonic Distortion is measured with 18dB/octave filter @80kHz
*2. Hum & Noise are measured with A-Weight filter.
*3. Crosstalk is measured with  a 30dB/octave filter @22kHz 
*4. Including rubber feet.
Sampling Frequency
Internal
44.1kHz
48kHz
88.2kHz
96kHz
External 44.1kHz
+4.1667%, +0.1%, –0.1%, –4.0%
±200ppm
48kHz
+4.1667%, +0.1%, –0.1%, –4.0% ±200ppm
88.2kHz
+4.1667%, +0.1%, –0.1%, –4.0% ±200ppm
96kHz
+4.1667%, +0.1%, –0.1%, –4.0% ±200ppm
Signal Delay Less than 3ms
INPUT to OUTPUT, connect with CL5 using Dante, 
Dante Receive Latency set to 0.25ms (one way), 
Fs=48kHz
Frequency Response +0.5, –1.5dB 20Hz-20kHz, refer to +4dBu output @1kHz, INPUT to OUTPUT, Fs= 44.1kHz, 48kHz
+0.5, –1.5dB 20Hz-40kHz, refer to +4dBu output @1kHz, INPUT to OUTPUT, Fs= 88.2kHz, 96kHz
Total Harmonic Distortion
*1Less than 0.05% 20Hz-20kHz@+4dBu into 600Ω, Fs= 44.1kHz, 48kHz
Less than 0.05% 20Hz-40kHz@+4dBu into 600Ω, Fs= 88.2kHz, 96kHz
INPUT to OUTPUT, Input Gain= Min.
Hum&Noise
*2–128dBu typ., Equivalent Input Noise, Input Gain= Max.
–88dBu Residual output noise, ST master off.
Dynamic Range 112dB typ., DA Converter,
108dB typ., INPUT to OUTPUT, Input Gain= Min.
Crosstalk@1kHz –100dB
*3, adjacent INPUT/OUTPUT channels, Input Gain= Min.
Dimensions (WxHxD)
and Net Weight Rio3224-D: 480mm x 232mm
*4 x 361.5mm, 12.4kg
Rio1608-D: 480mm x 144mm*4 x 361.5mm, 8.8kg
Power Requirements
(wattage) Rio3224-D: 120W
Rio1608-D: 70W
Power Requirements
(voltage and hertz) US/Canada: 120V 60Hz
Japan: 100V 50/60Hz
China: 110-240V 50/60Hz
Korea: 220V 60Hz
Other: 110-240V 50/60Hz
Te m p e r a t u r e  R a n g e Operating temperature range: 0 - 40°C
Storage temperature range: –20 - 60°C
Included Accessories Owner’s Manual, Power Cord, Dante  Virtual Soundcard Token leaflet 
						

							Specifications Owner’s Manual
20
Analog Input Characteristics
*1. XLR-3-31 type connectors are balanced.(1=GND, 2=HOT, 3=COLD)
*2. Rio3224-D only
* In these specifications, 0dBu = 0.775 Vrms.
* All input AD converters are 24bit linear, 128times oversampling.
* +48V DC ( phantom power ) is supplied to INPUT XLR type  connectors via each individual software controlled switch.
Analog Output Characteristics
*1. There are switches inside the body to preset the maximum output level. 
*2. XLR-3-32 type connectors are balanced. ( 1=GND, 2=HOT, 3=COLD )
*3. Rio3224-D only
* All output DA converters are 24bit, 128times oversampling.
* There are switches inside the body to preset the maximum output level. 
Digital I/O Characteristics
Digital Output Characteristics
*1. Rio3224-D only
*2. XLR-3-32 type connectors are balanced. (1= GND, 2= HOT, 3= COLD) Input 
Te r m i n a l s GAIN
Actual Load 
Impedance For Use With 
Nominal Input Level
Connector
Nominal Max. before clip
INPUT 1-16 +66dB
7.5kΩ50-600Ω Mics & 
600Ω Lines –62dBu (0.616mV) –42dBu (6.16mV)
XLR-3-31 type 
(Balanced)
*1–6dB +10dBu (2.45V) +30dBu (24.5V)
INPUT 17-32
*2+66dB 7.5kΩ50-600Ω Mics & 
600Ω Lines –62dBu (0.616mV) –42dBu (6.16mV)
XLR-3-31 type 
(Balanced)*1–6dB +10dBu (2.45V) +30dBu (24.5V)
Output 
Te r m i n a l s Actual Source 
Impedance For Use With 
Nominal Max.Output Level 
Select SW
*1Output Level Connector
Nominal Max. before clip
OUTPUT 1-8 75Ω 600Ω Lines +24dB (default) +4dBu (1.23 V) +24dBu (12.3V)
XLR-3-32 type 
(Balanced)
*2+18dB –2dBu (616mV) +18dBu (6.16V)
OUTPUT 9-16
*375Ω 600Ω Lines +24dB (default) +4dBu (1.23 V) +24dBu (12.3V)
XLR-3-32 type 
(Balanced)*2+18dB –2dBu (616mV) +18dBu (6.16V)
Terminals Format Data length Level Audio Connector
Primary/Secondary Dante  24bit or 32bit 1000Base-T 32ch (Rio3224-D to other devices)
24ch (Other devices to Rio3224-D)
16ch (Rio1608-D to other devices) 8ch (Other devices to Rio1608-D) EtherCON Cat5e
Terminal Format Data Length Level Connector
AES/EBU OUT 1-4
*1AES/EBU AES/EBU Professional use*124bit RS422
XLR-3-32 type (Balanced)*2