Yamaha Ro8d Manual

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Owner’s Manual
Bedienungsanleitung
Mode d’emploi
Manual de instrucciones
Manual do Proprietário
Manuale di istruzioni
Руковод\bтво пол\fзователя
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EN 
						

							Owner’s Manual2
The above warning is located on the top of the unit.
L’avertissement ci-dessus est situé sur le dessus de l’unité.
Explanation of Graphical Symbols
Explication des symboles
The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the us er to the presence of unins ulated “danger-
ous voltage” within the product’s enclosure  that may be of sufficient magnitude to constitute a risk of electric shock to persons.
L’éclair avec une flèche à l’intérieur d’un triangle équilatéral  est destiné à attirer l’attention de l’utilisateur sur la présence d’une « tension 
dangereuse » non isolée à l’intérieur de l’appareil, pouvant être  suffisamment élevée pour constituer un risque d’électrocution .
The exclamation point within  an equilateral triangle is intend ed to alert the user to the presence of important operating and m aintenance (ser-
vicing) instructions in the literature accompanying the product.
Le point d’exclamation à l’intéri eur d’un triangle équilatéral est destiné à attirer l’attention de l’utilisateur sur la présen ce d’instructions 
importantes sur l’emploi ou la maintenance (répara tion) de l’appareil dans la documentation fournie.
IMPORTANT SAFETY 
INSTRUCTIONS
1 Read these instructions.
2 Keep these instructions.
3 Heed all warnings.
4 Follow all instructions.
5 Do not use this apparatus near water.
6 Clean only with dry cloth.
7 Do not block any ventilation openings. Install in accordance with the 
manufacturer’s instructions.
8 Do not install near any heat sources such as radiators, heat registers,  stoves, or other apparatus (including amplifiers) that produce heat.
9 Do not defeat the safety purpose of the polarized or grounding-type  plug. A polarized plug has two blades with one wider than the other. 
A grounding type plug has two blades and a third grounding prong. 
The wide blade or the third prong are provided for your safety. If the 
provided plug does not fit into your outlet, consult an electrician for 
replacement of the obsolete outlet.
10 Protect the power cord from being walked on or pinched particularly  at plugs, convenience receptacles, and the point where they exit from 
the apparatus.
11 Only use attachments/accessories specified by the manufacturer.
12 Use only with the cart, stand, tripod, bracket, or  table specified by the manufacturer, or sold with 
the apparatus. When a cart is used, use caution 
when moving the cart/apparatus combination to 
avoid injury from tip-over.
13 Unplug this apparatus during lightning storms  or when unused for long periods of time.
14 Refer all servicing to qualified service personnel. Servicing is  required when the apparatus has b een damaged in any way, such as 
power-supply cord or plug is damaged, liquid has been spilled or 
objects have fallen into the apparatus, the apparatus has been 
exposed to rain or moisture, does not operate normally, or has been 
dropped.
(UL60065_03)
PRÉCAUTIONS CONCER-
NANT LA SÉCURITÉ
1 Lire ces instructions.
2 Conserver ces instructions.
3 Tenir compte de tous les avertissements.
4 Suivre toutes les instructions.
5 Ne pas utiliser ce produit à proximité d’eau.
6 Nettoyer uniquement avec un chiffon propre et sec.
7 Ne pas bloquer les orifices de ventilation. Installer l’appareil confor- mément aux instructions du fabricant.
8 Ne pas installer l’appareil à proximité d’une source de chaleur comme  un radiateur, une bouche de chaleur, un poêle ou tout autre appareil 
(y compris un amplificateur) produisant de la chaleur.
9 Ne pas modifier le système de sécurité de la fiche polarisée ou de la  fiche de terre. Une fiche polarisée dispose de deux broches dont une 
est plus large que l’autre. Une fiche de terre dispose de deux broches 
et d’une troisième pour le raccordem ent à la terre. Cette broche plus 
large ou cette troisième broche est destinée à assurer la sécurité de 
l’utilisateur. Si la fiche équipant  l’appareil n’est pas compatible avec 
les prises de courant disponibles , faire remplacer les prises par un 
électricien.
10 Acheminer les cordons d’alimentation de sorte qu’ils ne soient pas  piétinés ni coincés, en faisant tout spécialement attention aux fiches, 
prises de courant et au point de sortie de l’appareil.
11 Utiliser exclusivement les fixations et accessoires spécifiés par le  fabricant.
12 Utiliser exclusivement le chariot, le stand, le  trépied, le support ou la table recommandés par 
le fabricant ou vendus avec cet appareil. Si 
l’appareil est posé sur un chariot, déplacer le 
chariot avec précaution pour éviter tout risque 
de chute et de blessure.
13 Débrancher l’appareil en cas d’orage ou  lorsqu’il doit rester hors service pendant une période prolongée.
14 Confier toute réparation à un pers onnel qualifié. Faire réparer l’appa-
reil s’il a subi tout dommage, par exemple si la fiche ou le cordon 
d’alimentation est endommagé, si du liquide a coulé ou des objets 
sont tombés à l’intérieur de l’appareil, si l’appareil a été exposé à la 
pluie ou à de l’humidité, si l’appareil ne fonctionne pas normalement 
ou est tombé.
(UL60065_03)
WARNINGTO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT 
EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
AVERTISSEMENTPOUR RÉDUIRE LES RISQUES D’ INCENDIE OU DE DÉCHARGE 
ÉLECTRIQUE, N’EXPOSEZ PAS CET APPAREIL À LA PLUIE OU À 
L’HUMIDITÉ. 
						

							 Owner’s Manual3
1.  IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT!This product, when installed as indicated in the instructions con-
tained in this manual, meets FCC  requirements. Modifications not 
expressly approved by Yamaha may void your authority, granted by 
the FCC, to use the product.
2. IMPORTANT: When connecting this product to accessories and/
or another product use only high quality shielded cables. Cable/s 
supplied  with this product MUST be used. Follo w all installation 
instructions. Failure to follo w instructions could void your FCC 
authorization to use this product in the USA.
3. NOTE: This product has been tested and found to comply  with the 
requirements listed in FCC Regulations , Part 15 for Class “B” digital 
devices. Compliance  with these requirements provides a reason-
able level of assurance that your use of this product in a residential 
environment w ill not result in harmful interference  with other elec-
tronic devices. This equipment  generates/uses radio frequencies 
and, if not installed and used according to the instructions found in 
the users manual, may cause interference harmful to the operation 
of other electronic devices. Compliance  with FCC regulations does 
* This applies only to products distributed by YAMAHA CORPORATION OF AMERICA. (class B)
not guarantee that interference will not occur in all installations. If 
this product is found to be the source of interference,  which can be 
determined by turning the unit “OFF” and “ON” , please try to elimi-
nate the problem by using one of the follo wing measures:
Relocate either this product or the device that is being affected by 
the interference. 
Utilize po wer outlets that are on different branch (circuit breaker or 
fuse) circuits or install AC line filter/s.
In the case of radio or TV interference, relocate/reorient the 
antenna. If the antenna lead-in is 300 ohm ribbon lead, change the 
lead-in to co-axial type cable.
If these corrective measures do not produce satisfactory results, 
please contact the local retailer authorized to distribute this type of 
product. If you can not locate the appropriate retailer, please contact 
Yamaha Corporation of America,  Electronic Service Division, 6600 
Orangethorpe Ave, Buena Park, CA90620
The above statements apply ONLY to those products distributed by 
Yamaha Corporation of America or its subsidiaries.
FCC INFORMATION (U.S.A.)
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the  Plug and Cord
WARNING: THIS APPARATUS MUST BE EARTHED IMPORTANT. 
The w ires in this mains lead are coloured in accordance  with the fol-
lo wing code:
GREEN-AND-YELLOW : EARTH
BLUE : NEUTRAL
BROWN : LIVE
As the colours of the  wires in the mains lead of this apparatus may not 
correspond  with the coloured markings identifying the terminals in 
your plug proceed as follo ws:
The  wire  which is coloured GREEN-and-YELLOW must be connected 
to the terminal in the plug which is marked by the letter E or by the 
safety earth symbol  or colored GREEN or GREEN-and-YELLOW.
The w ire which is coloured BLUE must be connected to the terminal 
which is marked  with the letter N or coloured BLACK.
The  wire  which is coloured BROWN must be connected to the terminal 
which is marked  with the letter L or coloured RED.
(3 w ires)
 * This applies only to products distributed by 
YAMAHA CORPORATION OF AMERICA.
COMPLIANCE INFORMATION STATEMENT
(DECLARATION OF CONFORMITY PROCEDURE)
Responsible Party : Yamaha Corporation of America
Address : 6600 Orangethorpe Ave., Buena Park, Calif. 90620
Telephone : 714-522-9011
Type of Equipment : I/O RACK Model Name : Ri 8-D/Ro8-D
This device complies  with Part 15 of the FCC Rules.
Operation is subject to the follo wing t wo conditions:
1) this device may not cause harmful interference, and
2) this device must accept any interference received including interference  that may cause undesired operation.
See user manual instructions if interf erence to radio reception is suspected.
(FCC DoC)
(class b korea) 
						

							 Owner’s Manual4 
						

							English
 Owner’s Manual5
Contents
PRECAUTIONS................................... 6
Introduction .................................... 8
Features ............................................................. 8
Firmware Updates .............................................. 8
Precautions for Rack Mounting .......................... 8
About Dante .................................... 9
Controls and Functions .................. 10
Front Panel ...................................................... 10
Rear Panel ........................................................ 13
About Connections ........................ 14
Daisy Chain Network ....................................... 14
Star Network.................................................... 14
About Dante Controller.................................... 15
Initializing the Ri8-D/Ro8-D.............................. 15
Head Amp Control ......................... 16
Control from an Ri8-D-native Device ................ 16
Control from a Device That Does Not Feature Ri8-D-Native Support ................... 16
Head Amplifier Parame ters That Can be 
Monitored and Controlled ........................ 16
Troubleshooting ............................ 17
Troubleshooting .............................................. 17
Messages ......................................................... 18
Specifications ............................... 153
General Specifications .................................... 153
Analog Input Characteristics (Ri8-D only) ....... 154
Analog Output Characteristics (Ro8-D only) ... 154
Digital I/O Characteristics .............................. 154
Dimensions .................................................... 155
Accessories
(Please check the package contents.)
• Owner’s Manual
• AC power cable 
						

							 Owner’s Manual6
PRECAUTIONS
PLEASE READ CAREFULLY BEFORE PROCEEDING 
* Please keep this manual in a safe place for future reference.
 WARNING
Always follow the basic precautions listed below to avoid 
the possibility of serious injury or even death from 
electrical shock, short-circuiting, damages, fire or other 
hazards. These precautions include, but are not limited 
to, the following:
• Do not place the power cord near heat sources such as heaters or radiators, and 
do not excessively bend or otherwise da mage the cord, place heavy objects on 
it, or place it in a position where anyone c ould walk on, trip over, or roll anything 
over it.
• Only use the voltage specified as correct  for the device. The required voltage is 
printed on the name plate of the device.
• Use only the supplied power cord/plug. If you intend to use the device in an area other than in the one you purchased, 
the included power cord may not be co mpatible. Please check with your Yamaha 
dealer.
• Check the electric plug peri odically and remove any dirt or dust which may have 
accumulated on it.
• Be sure to connect to an approp riate outlet with a protective grounding 
connection. Improper grounding can  result in electrical shock.
• This device contains no user-serviceable  parts. Do not open the device or 
attempt to disassemble the internal parts or  modify them in any way. If it should 
appear to be malfunctioning, discontinue  use immediately and have it inspected 
by qualified Yamaha service personnel.
• Do not expose the device to rain, use it n ear water or in damp or wet conditions, 
or place on it any containers (suc h as vases, bottles or glasses) containing 
liquids which might spill in to any openings. If any liquid such as water seeps 
into the device, turn off the power imme diately and unplug the power cord from 
the AC outlet. Then have the device in spected by qualified Yamaha service 
personnel.
• Never insert or remove an electric plug with wet hands.
• Do not put burning items, such as candles, on the unit. A burning item may fall  over and cause a fire.
• When one of the following problems o ccur, immediately turn off the power 
switch and disconnect the electric pl ug from the outlet. Then have the device 
inspected by Yamaha service personnel.
- The power cord or plug becomes frayed or damaged.
- It emits unusual smells or smoke.
- Some object has been dropped into the instrument.
- There is a sudden loss of sound during use of the device.
• If this device should be dropped or da maged, immediately turn off the power 
switch, disconnect the electric plug from  the outlet, and have the device 
inspected by qualified Yamaha service personnel.
 CAUTION
Always follow the basic precautions listed below to avoid 
the possibility of physical injury to you or others, or 
damage to the device or other property. These 
precautions include, but are not limited to, the following:
• When removing the electric plug from th e device or an outlet, always hold the 
plug itself and not the cord. Pulling by the cord can damage it.
• Remove the electric plug from the outlet wh en the device is not to be used for 
extended periods of time, or during electrical storms.
• Do not place the device in an unstable  position where it might accidentally fall 
over.
• Do not block the vents. This device has ventilation holes at the front and side to  prevent the internal temperature from b ecoming too high. In particular, do not 
place the device on its side or upside down.  Inadequate ventilation can result in 
overheating, possibly causing damage  to the device(s), or even fire.
• To avoid damage, do not install or store  the device in a place subject to salty air 
or corrosive gas or chemicals.
• Before moving the device,  remove all connected cables.
• When setting up the device, make sure that  the AC outlet you are using is easily 
accessible. If some trouble or malfuncti on occurs, immediately turn off the 
power switch and disconnect the plug fr om the outlet. Even when the power 
switch is turned off, electricity is st ill flowing to the product at the minimum 
level. When you are not using the produc t for a long time, make sure to unplug 
the power cord from the wall AC outlet.
• If the device is mounted in an EIA st andard rack, carefully read the section 
“Precautions for Rack Mounting” on page 8. Inadequate ventilation can result in 
overheating, possibly causing damage to  the device(s), malfunction, or even fire.
• Keep device away from the reach of children.
• Before connecting the device to other devi ces, turn off the power for all devices. 
Before turning the power on or off for  all devices, set all volume levels to 
minimum.
• Remove the power plug from the AC  outlet when cleaning the device.
• Do not insert your fingers or hands  in any gaps or openings on the device 
(vents, etc.).
• Avoid inserting or dropping foreign object s (paper, plastic, metal, etc.) into any 
gaps or openings on the device (vents, etc.) If this happens, turn off the power 
immediately and unplug the power cord  from the AC outlet. Then have the 
device inspected by qualified Yamaha service personnel.
• Do not rest your weight on the device  or place heavy objects on it, and avoid use 
excessive force on the buttons , switches or connectors.
• Do not use speakers for a long period of time  at a high or uncomfortable volume 
level, since this can cause permanen t hearing loss. If you experience any 
hearing loss or ringing in th e ears, consult a physician.
Power supply/Power cord
Do not open
Water warning
Fire warning
If you notice any abnormality
Power supply/Power cord
Location
Connections
Maintenance
Handling caution
PA_en_1  1/2 
						

							English
 Owner’s Manual7
NOTICE
To avoid the possibility of malfunction/ damage to the 
product, damage to data, or damage to other property, 
follow the notices below.
• Do not use the device in the vicinity of a TV, radio, stereo equipment, mobile 
phone, or other electric devices. Otherw ise, the device, TV, or radio may 
generate noise.
• Do not expose the device to excessive dust or vibrations, or extreme cold or heat  (such as in direct sunlight, near a heater , or in a car during the day) to prevent 
the possibility of panel disfiguration,  damage to the internal components or 
unstable operation.
• Do not place vinyl, plastic or rubber  objects on the device, since this might 
discolor the panel or keyboard.
• When cleaning the device, use a dry and  soft cloth. Do not use paint thinners, 
solvents, cleaning fluids, or chem ical-impregnated wiping cloths.
• Condensation can occur in the device due  to rapid, drastic changes in ambient 
temperature—when the device is moved fr om one location to another, or air 
conditioning is turned  on or off, for example. Using the device while 
condensation is present can cause damage . If there is reason to believe that 
condensation might have occurred, leave  the device for several hours without 
turning on the power until the cond ensation has completely dried out.
• Always turn the power off wh en the device is not in use.
• XLR-type connectors are wired as follow s (IEC60268 standard): pin 1: ground, 
pin 2: hot (+), and pin 3: cold (-).
Information
About copyrights
 * Copying of the commercially available mu sical data including but not limited to 
MIDI data and/or audio data is strict ly prohibited except for your personal use.
About this manual
 * The illustrations and LCD screens as show n in this manual are for instructional 
purposes only, and may appear somewhat  different from those on your device.
 * The company names and product names in this manual are the trademarks or  registered trademarks of  their respective companies.
 * Specifications and exterior appearance m ay be subject to change without prior 
notice as a result of improvements. (weee_eu)
Yamaha cannot be held responsible for damage caused by improper use or 
modifications to the device, or da
ta that is lost or destroyed.
European Models
Inrush Current based on EN 55103-1:2009
2A (on initial switch-on)
2A (after a supply interruption of 5s)
Conforms to Environments: E1, E2, E3 and E4
Handling and Maintenance
Connectors
Information for Users on Collection and Disposal of Old 
Equipment
This symbol on the products, packaging, and/or 
accompanying documents means that used electrical 
and electronic products s hould not be mixed with 
general household waste.
For proper treatment, recovery and recycling of old 
products, please take them to  applicable collection 
points, in accordance with yo ur national legislation and 
the Directives 2002/96/EC.
By disposing of these products correc tly, you will help to save valuable 
resources and prevent any potential nega tive effects on human health and the 
environment which could otherwise ari se from inappropriate waste handling.
For more information about collection and recycling of old products, please 
contact your local municipality, your wast e disposal service or the point of sale 
where you purchased the items.
[For business users in the European Union]
If you wish to discard elec trical and electronic equipment, please contact your 
dealer or supplier for further information.
[Information on Disposal in  other Countries outside the European 
Union]
This symbol is only valid in the Europea n Union. If you wish to discard these 
items, please contact your  local authorities or dealer and ask for the correct 
method of disposal.
PA_en_1  2/2 
						

							Introduction Owner’s Manual
8
Introduction
Thank you for choosing the Yamaha Input Rack Ri8-D/
Output Rack Ro8-D. 
The Ri8-D is a Dante-compatible input rack equipped with 
8 channels analog input. The Ro8-D is a Dante-compatible 
output rack equipped with 8 channels analog output.
To take full advantage of the superior functions and 
performance offered by the Ri8-D/Ro8-D, and to extend 
the useful life of the product, be sure to read this owner’s 
manual carefully before operation.
Features
Long-distance Dante Network 
Capability
Low-latency, low-jitter audio can be transferred over 
distances up to 100 meters* between devices via standard 
Ethernet cables using the Dante network protocol. The 
Ri8-D/Ro8-D can be used as a general-purpose I/O box for 
the Dante network. Supported sampling rates are 44.1 kHz, 
48 kHz, 88.2 kHz, and 96 kHz.
* Maximum practical distance may vary according to the cable used.
Vast variety of layout is available with 
compact 1U chassis
The Ri8-D is dedicated for input rack and the Ro8-D is for 
output. This enables an installation of rack for an occasion 
requires input only or output only.
Of course, combination with the Rio3224-D/Rio1608-D 
(input/output rack) is enabled to realize system 
configuration with higher flexibility.
Remotely Controllable Internal Head 
Amplifiers (Ri8-D only)
Internal head amplifier parameters can be remotely 
controlled from a compatible device, such as the CL series, 
or from a computer application “R Remote.”
Gain Compensation Function 
(Ri8-D only)
Enabling Gain Compensation feature of the Ri8-D for 
supporting equipment with gain compensation capability 
such as CL Series products may compensate change of 
analog gain in downstream by the compensation gain 
integrated in the Ri8-D, and it will send the audio signal to 
Dante network with gain level fixed to a value immediately 
before it was enabled.
Direct Audio In/Out With a Connected 
Computer
Connecting the Ri8-D/Ro8-D with a standard Ethernet 
cable to a computer that has a Dante Virtual Soundcard 
installed enables you to directly input or output audio 
signals without using an audio interface device (the Ri8-D 
is for input and the Ro8-D is for output only).
Firmware Updates
This product enables you to update the unit firmware to 
improve operations, add functions, and correct possible 
malfunctions. The following two types of firmware are 
available for the unit.
•Unit’s f ir mware
• Dante module firmware
Details on updating the firmware are available on the 
following website: http://www.yamahaproaudio.com/
For information on updating and setting up the unit, please 
refer to the firmware update guide available on the website.
NOTE
When you update Dante firm ware on the unit, be sure to 
update Dante firm ware on other Dante-compatible devices 
connected to the Ri 8-D/Ro8-D.
Precautions for Rack Mounting
This unit is rated for operation at ambient temperatures 
ranging from 0 to 40 degrees Celsius. When mounting 
the unit with other Ri8-D/Ro8-D unit(s) or other 
device(s) in an EIA standard equipment rack, internal 
temperatures can exceed the specified upper limit, 
resulting in impaired performance or failure. When rack 
mounting the unit, always observe the following 
requirements to avoid heat buildup:
• When mounting the unit in a rack with devices such 
as power amplifiers that generate a significant 
amount of heat, leave more than 1U of space 
between the Ri8-D/Ro8-D and other equipment. 
Also either leave the open spaces uncovered or 
install appropriate ventilating panels to minimize 
the possibility of heat buildup.
• To ensure sufficient airflow, leave the rear of the rack 
open and position it at least 10 centimeters from 
walls or other surfaces. If the rear of the rack can’t be 
left open, install a commercially available fan or 
similar ventilating option to secure sufficient 
airflow. If you’ve installed a fan kit, there may be 
cases in which closing the rear of the rack will 
produce a greater cooling effect. Refer to the rack 
and/or fan unit manual for details. 
						

							English
About Dante
 Owner’s Manual
9
About Dante
This product features Dante technology as a protocol to 
transmit audio signals. Dante is a network protocol 
developed by Audinate. It is designed to deliver 
multi-channel audio signals at various sampling and bit 
rates, as well as device control signals over a Giga-bit 
Ethernet (GbE) network. Dante also offers the following 
benefits:
• It transmits up to 512 in/512 out, for a total 1024 
channels (in theory) of audio over a GbE network. 
(The Ri8-D features 8 in with a 24/32-bit resolution. 
The Ro8-D features 8 out with a 24/32-bit resolution.)
• Dante-enabled devices will automatically configure their 
network interfaces and find each other on the network. 
You can label Dante devices and their audio channels 
with names that make sense to you.
• Dante uses high accuracy network synchronization 
standards to achieve sample-accurate playback with 
extremely low latency and jitter. Five types of latency are 
available on the Ri8-D/Ro8-D: 0.25 msec, 0.5 msec, 
1.0 msec, 2.0 msec, and 5.0 msec.
• Dante supports redundant connections via primary and 
secondary networks to defend against unforeseen 
difficulties.
• Connecting a computer to Dante network over Ethernet 
enables you to directly input or output audio signals 
without using any audio interface devices.
By taking advantages of these benefits, you can skip any 
complicated procedures to automate connections and 
setups of Dante-enabled devices, remotely control I/O 
racks or amplifiers from a mixing console, or make 
multi-track recordings to a DAW, such as Nuendo, installed 
on a computer in the network.
Visit Audinate website for more details on Dante. http://www.audinate.com/
More information on Dante is also posted on the Yamaha 
Pro Audio website: http://www.yamahaproaudio.com/
NOTE
Please do not use the EEE function (*) of net work s witches in a 
Dante net work.
Although po wer management should be negotiated automatically 
in s witches that support EEE, some s witches do not perform the 
negotiation properly. This may cause EEE to be enabled in Dante 
net works when it is not appropriate, resulting in poor 
synchronization performanc e and occasional dropouts.
Therefore  we strongly recommend that:
• If you use managed s witches, ensure that they allo w EEE to be 
disabled. Make sure that EEE is disabled on all ports used for 
real-time Dante traffic.
• If you use unmanaged s witches, make sure to not use net work 
s w itches that support the EEE function, since EEE operation 
cannot be disabled in these s witches.
* EEE (Energy Efficient Ethernet) is a technology that reduces s witch 
po wer consumption during periods of lo w net work traffic. It is also kno wn 
as Green Ethernet and IEEE 802.3az. 
						

							Controls and Functions Owner’s Manual
10
Controls and Functions
Front Panel
1[INPUT] Connectors 1–8 (Ri8-D only)
These are the XLR-3-31 type analog balanced 
connectors for the input channels. The input level 
range is from –62 dBu to +10 dBu. +48V phantom 
power can be supplied to devices that require it via the 
input connectors.
NOTE
The PAD will be s witched on or off internally when the gain 
of the internal head amp is adjusted bet ween +17 dB and 
+1 8 dB. Keep in mind that noise may be generated if there 
is a difference bet ween the Hot and Cold impedance of the 
external device connected to the INPUT connector  when 
using phantom po wer.
2OUTPUT +4 dBu Connectors 1–8 (Ro8-D only)
These XLR-3-32 type balanced connectors deliver 
analog output from the unit’s corresponding output 
channels. Nominal output level is +4 dBu.
3[+48V] Indicators (Ri8-D only)
These indicators light when +48V phantom power is 
turned ON for the corresponding input channels. 
Phantom power supply switching can be carried out 
from a compatible digital mixing console or computer 
application. No phantom power will be supplied, 
however, if the [+48V MASTER] switch is OFF, even 
if phantom power to individual channels is turned ON 
(the +48V indicators will flash). The +48V indicators 
also function as error indicators: the indicators for all 
channels will flash if an error occurs.
CAUTION:
• Make sure that phantom po wer is turned OFF unless it is 
needed.
• When turning phantom po wer ON, make sure that no 
equipment other than phantom-po wered devices such as 
condenser microphones are connected to the 
corresponding [INPUT] connectors. Applying phantom 
po wer to a device that does not require phantom po wer can 
damage the connected device.
• Do not connect or disconnect a device to an INPUT  while 
phantom po wer is applied. Doing so can damage the 
connected device and/or the unit itself.
• To prevent possible damage to speakers, make sure that 
po wer amplifiers and/or po wered speakers are turned OFF 
when s witching phantom po wer ON or OFF. We also 
recommend setting all digi tal mixing console output  controls to minimum when turning phantom po
wer ON or 
OFF. Sudden high level peaks caused by the s witching 
operation can damage equipment as w ell as the hearing of 
those present.
4[PEAK] Indicators (Ri8-D only)
These indicators light red when the signal level of the 
corresponding channel reaches or exceeds –3 dBFS.
The PEAK indicators also function as error 
indicators: the indicators for all channels will flash if 
an error occurs.
5[SIG] (Signal) Indicators
These indicators light green when the signal applied 
to the corresponding channel reaches or exceeds 
–34 dBFS.
The SIG indicators also function as error indicators: 
the indicators for all channels will flash if an error 
occurs.
6[UNIT ID] Rotary Switch
This rotary switch enables you to set an ID number so 
that connected devices will recognize the 
Ri8-D/Ro8-D. The UNIT ID must be a unique 
number in the network so that the Ri8-D/Ro8-D will 
be able to transmit and receive audio signals over a 
Dante network, or be controlled from a connected 
digital mixing console.
Use the rotary switch while the power to the unit is 
turned OFF. Otherwise, the ID setting will not be 
effective.
7[SYSTEM ] Indic a tors
These indicators show the Ri8-D/Ro8-D’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 18).
11  2  3  4  5  6  7  8ON
1  2  3  4  5  6  7  8ON1
12B
3 4
5A 0
78
78
69