Rotel RC-1572MKII User manual

Owner’s Manual
Manuel de l’utilisateur
Bedienungsanleitung
Manual de Instrucciones
Gebruikershandleiding
Manuale di istruzioni
Instruktionsbok
Инструкция пользователя
RC‑1572MKII
Stereo Control Amplier
Amplicateur de Contrôle Stéréo
Stereo‑Vorverstärker
Preamplicador Estereofónico
Stereo‑regelversterker
Preamplicatore Stereo
Stereokontrollförstärkare
Предварительный стерео усилитель

2RC‑1572MKII Stereo Control Amplier
Notice
The RS232 connection should be handled by authorized persons only.
WARNING: There are no user serviceable parts inside. Refer all servicing
to qualified service personnel.
WARNING: To reduce the risk of fire or electric shock, do not expose
the unit to moisture or water. Do not expose the unit to dripping or
splashing. Do not place objects filled with liquids, such as vases, on
the unit. Do not allow foreign objects to get into the enclosure. If the
unit is exposed to moisture, or a foreign object gets into the enclosure,
immediately disconnect the power cord from the wall. Take the unit to a
qualified service person for inspection and necessary repairs.
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with dry cloth.
Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat. 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.
Protect the power cord from being walked on or pinched particularly
at plugs, convenience receptacles, and the point where they exit from
the apparatus.
Only use attachments/accessories specified by the manufacturer.
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.
Unplug this apparatus during lightning storms or when unused for
long periods of time.
Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been 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.
The apparatus should be used in non tropical climate.
The ventilation should not be impeded by covering the ventilation openings
with items, such as newspapers, table‑cloths, curtains, etc.
No naked flame sources, such as lighted candles, should be placed on
the apparatus.
Touching uninsulated terminals or wiring may result in an unpleasant
sensation.
Rotel products are designed to comply with international
directives on the Restriction of Hazardous Substances
(RoHS) in electrical and electronic equipment and the
disposal of Waste Electrical and Electronic Equipment
(WEEE). The crossed wheelie bin symbol indicates
compliance and that the products must be appropriately
recycled or processed in accordance with these
directives.
This symbol means that this unit is double insulated.
An earth connection is not required.
Important Safety Instructions
You must allow a minimum 10 cm or 4 inches of unobstructed
clearance around the unit.
WARNING:
The rear panel power cord connector is the mains power
disconnect device. The device must be located in an open area that
allows access to the cord connector.
The unit must be connected to a power supply only of the type and
voltage specified on the rear panel. (USA: 120 V/60Hz, EC: 230V/50Hz)
Connect the component to the power outlet only with the supplied power
supply cable or an exact equivalent. Do not modify the supplied cable.
Do not use extension cords.
The mains plug is the disconnect of the unit. In order to completely
disconnect the unit from the supply mains, remove the main plug from
the unit and the AC power outlet. This is the only way to completely
remove mains power from the unit.
The batteries in the remote control should not be exposed to excessive
temperature such as sunshine, fire or other heat sources. Batteries
should be recycled or disposed as per state and local guidelines.
This device complies with Part 15 of the FCC Rules. Operation is
subject to the following to 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.
12
3
Pin Assignments
Balanced Audio (3 pole XLR):
Pin 1: Ground / Screen
Pin 2: In phase / +ve / Hot
Pin 3: Out of phase / ‑ve / Cold

3
GND
1 2 4
3
=-09
8
65 7
q w
er t yio]
up[
Figure 1: Controls and Connections Bedieningselementen en aansluitingen
Commandes et Branchements Controlli e connessioni
Bedienelemente und Anschlüsse Kontroller och anslutningar
Controles y Conexiones Органы управления и разъемы

4RC‑1572MKII Stereo Control Amplier
A
C
E
F
G
H
I
J
K
Q
N
M
L
O
B
D
P
Figure 2 : RR‑AX93 Remote Control
Télécommande infrarouge RR‑AX93
Fernbedienung RR‑AX93
Mando a Distancia RR‑AX93
Afstandsbediening RR‑AX93
Telecomando RR‑AX93
RR‑AX93 fjärrkontroll
Пульт ДУ RR-AX93

5
English
RP-565E
CLASS 1
LASER PRODUCT
APPAREIL LASER
DE CLASSE 1
GND
R L GND
PHONO
Rotel RC-1572MKII
Rotel RCD-1572
Rotel RB-1582MKII
Figure 3 : Analog Input and Output Connections
Branchements des entrées et sorties analogiques
Analoge Ein‑ und Ausgangsanschlüsse
Entradas y Salidas Analógicas
Analoge ingangen en uitgangen
Collegamenti ingressi ed uscite analogici
Anslutningar för analoga in‑ och utgångar
Аналоговые входные и выходные разъемы

6RC‑1572MKII Stereo Control Amplier
RP-565E
CLASS 1
LASER PRODUCT
APPAREIL LASER
DE CL ASSE 1
GND
Rotel RC-1572MKII
Rotel RCD-1572
Rotel RB-1582MKII
Figure 4 : Balanced (XLR) Input and Output Connections
Branchements des entrées et sorties symétriques (XLR)
Symmetrische (XLR‑)Ein‑ und Ausgangsanschlüsse
Entradas y Salidas Balanceadas (XLR)
Gebalanceerde ingangen (XLR) en uitgangen
Ingressi ed uscite analogici bilanciati (XLR)
Balanserade in‑ och utgångar (XLR)
Балансные (XLR) входные и выходные разъемы

7
English
RP-565E
CLASS 1
LASER PRODUCT
APPAREIL LASER
DE CLASSE 1
GND
Rotel RC-1572MKII
Rotel RCD-1572
(Supplied)
Computer
Figure 5 : Digital Input and 12 Volt Trigger Out Connections
Entrées numériques et Branchements des sorties trigger 12 V
Anschlussdiagramm (Digitaleingänge, 12V‑Trigger‑Ausgänge)
Entrada Digital y Conexiones de Salida para Señal de Disparo de 12 Voltios
Digitale ingangen en 12V‑triggeruitgangen
Collegamenti ingressi digitali e segnali Trigger 12 V
Anslutningar för digitala ingångar och 12‑volts styrsignaler
Цифровой вход и выход 12-В триггерного сигнала

8RC‑1572MKII Stereo Control Amplier
Important Notes
When making connections be sure to:
4Turn off all the components in the system before hooking up any components, including loudspeakers.
4Turn off all components in the system before changing any of the connections to the system.
It is also recommended that you:
4Turn the volume control of the amplier all the way down before the amplier is turned on or off.
Remarques importantes
Pendant les branchements, assurez-vous que :
4Tous les maillons sont éteints avant leur branchement, quels qu’ils soient, y compris les enceintes acoustiques.
4Éteignez tous les maillons avant de modier quoi que ce soit au niveau de leurs branchements, quels qu’ils soient.
Il est également recommandé de :
4Toujours baissez le niveau sonore via le contrôle de volume, avant d’allumer ou d’éteindre l’amplicateur.
Wichtige Hinweise
Achten Sie beim Herstellen der Verbindungen auf Folgendes:
4Schalten Sie alle Komponenten im System ab, bevor Sie Geräte (einschließlich Lautsprecher) anschließen.
4Schalten Sie alle Komponenten im System ab, bevor Sie Anschlüsse im System verändern.
Ferner empfehlen wir, dass
4Sie die Lautstärke herunterdrehen, bevor Sie den Verstärker ein- oder abschalten.
Notas Importantes
Cuando realice las conexiones, asegúrese de que:
4Desactiva todos los componentes del equipo, cajas acústicas incluidas, antes de conectar cualquier nuevo componente en el mismo.
4Desactiva todos los componentes del equipo antes de cambiar cualquier conexión del mismo.
También le recomendamos que:
4Reduzca el nivel de volumen de su amplicador a cero antes de activarlo o desactivarlo.
Héél belangrijk
Bij het maken van de verbindingen:
4Zorg dat niet alleen de RC-1572MKII, maar de gehele installatie uitstaat, als nog niet alle verbindingen gemaakt zijn.
4Zorg dat niet alleen de RC-1572MKII, maar de gehele installatie ook uitstaat, als u verbindingen gaat wijzigen.
Wij raden u ook aan om
4de volumeregelaar van de (voor)versterker geheel dicht te draaien (volkomen linksom) wanneer u uw eindversterker aan- of uitzet.
Note importanti
Quando effettuate i collegamenti assicuratevi di:
4Spegnere tutti i componenti del sistema prima di collegare qualsiasi componente, inclusi i diffusori.
4Spegnere tutti i componenti del sistema prima di modicare qualsiasi connessione nel sistema.
Vi raccomandiamo inoltre di:
4Portare il volume a zero prima di accendere o spegnere l’amplicatore.
Viktigt
Tänk på följande när du gör anslutningar:
4Stäng av alla apparater i anläggningen innan du ansluter nya komponenter eller högtalare.
4Stäng av alla apparater i anläggningen innan du ändrar någon anslutning.
Du rekommenderas också:
4Vrida ner volymen på förförstärkaren helt och hållet innan förstärkaren slås på eller av.
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9
English
About Rotel
Our story began over 50 years ago. Over the decades, we have received
hundreds of awards for our products and satised hundreds of thousands
of people who take their entertainment seriously - like you!
Rotel was founded by a family whose passionate interest in music led them
to manufacture high-delity components of uncompromising quality. Through
the years, that passion has remained undiminished and the family goal of
providing exceptional value for audiophiles and music lovers, regardless
of their budget, is shared by all Rotel employees.
Rotel’s engineers work as a close team, listening to, and ne tuning, each
new product until it reaches their exacting musical standards. They are
free to choose components from around the world in order to make that
product the best they can. You are likely to nd capacitors from the United
Kingdom and Germany, semiconductors from Japan or the United States,
while toroidal power transformers are manufactured in Rotel’s own factory.
We all have concerns about our environment. And, as more and more
electronics are produced it is especially important for a manufacturer to do all
it can to engineer products that have a minimum impact on the environment.
At Rotel, we are proud to do our part. We have reduced the lead content
in our products by using special lead-free ROHS solder and components.
Our engineers continually strive to improve power supply efciency without
compromise to quality. When in standby mode Rotel products use minimal
power to meet global Standby Power Consumption requirements.
The Rotel factory is also doing their part to help the environment through
constant improvements to product assembly methods for a cleaner and
greener manufacturing processes.
All of us at Rotel thank you for buying this product. We are sure it will bring
you many years of enjoyment.
Getting Started
Thank you for purchasing the Rotel RC-1572MKII Stereo Control Amplier.
When used in a high-quality music audio system, your Rotel product will
provide years of musical enjoyment.
The RC-1572MKII is a full featured, high performance component. All aspects
of the design have been optimized to retain the full dynamic range and subtle
nuances of your music. The RC-1572MKII has a highly regulated power
supply incorporating a Rotel custom-designed toroidal power transformer
and custom-made slit foil capacitors. This low impedance power supply has
ample power reserves, which enables the RC-1572MKII to easily reproduce
the most demanding audio signals. This type of design is more expensive
to manufacture, but it is better for the music.
The printed circuit boards (PCB) are designed with Symmetrical Circuit
Traces. This ensures that the precise timing of the music is maintained and
faithfully recreated. The RC-1572MKII circuitry uses metal lm resistors
and polystyrene or polypropylene capacitors in important signal paths.
All aspects of this design have been examined to ensure the most faithful
music reproduction.
Contents
Important Safety Instructions ..........................................2
Figure 1: Controls and Connections 3
Figure 2: RR‑AX93 Remote Control 4
Figure 3: Analog Inputs and Output Connections 5
Figure 4: Balanced (XLR) Input and Output Connections 6
Figure 5: Digital Inputs Connection and 12 Volt Trigger Out Connection 7
Important notes 8
About Rotel .......................................................9
Getting Started ....................................................9
A Few Precautions 10
Placement 10
Cables 10
The RR-AX93 Remote Control ........................................10
Remote Control Batteries 10
AC Power and Control ..............................................10
AC Power Input ]10
Power Switch and Power Indicator 1A10
12V Trigger Connection =10
Input Signal Connections ............................................11
Phono Input eand Ground Connection 911
Line Level Inputs e11
Balanced (XLR) Inputs u 11
Digital Inputs i11
Output Connections ................................................11
MONO SUB Out output r11
Preamp Output t11
Balanced (XLR) Output y 11
Headphone Output 611
Remote Sensor 2.................................................11
Display 3......................................................11
Front USB Input 5................................................11
APTX Bluetooth Connection [........................................11
Rear USB Power port q............................................11
Audio Controls ....................................................12
Volume Control 4G12
Balance Control 8C12
Tone Control Bypass 8C12
Bass and Treble Tone Controls 8C12
Function Control 7K12
Dimmer Control ...................................................12
Display Dimmer 8B12
POWER LED Dimmer 812
Rotel Link 0....................................................12
EXT REM IN Jack -...............................................12
RS232 w.......................................................12
PC-USB Input o..................................................13
Network Connection p.............................................13
Settings Menu ....................................................13
Troubleshooting ...................................................15
Power Indicator Is Not Illuminated 15
Fuse replacement 15
No Sound 15
Cannot Connect via Bluetooth 15
Playable Audio Format 15
Specications.....................................................16

10 RC‑1572MKII Stereo Control Amplier
The main functions of the RC-1572MKII are easy to install and use. If you
have experience with other stereo systems, you shouldn’t nd anything
perplexing. Simply plug in the associated components and enjoy.
A Few Precautions
WARNING: To avoid potential damage to your system, turn off ALL
the components in the system when connecting or disconnecting the
loudspeakers or any associated components. Do not turn the system
components back on until you are sure all the connections are correct
and secure.
Please read this manual carefully. In addition to basic installation and operating
instructions, it provides valuable information on various RC-1572MKII system
congurations as well as general information that will help you get optimum
performance from your system. Please contact your authorized Rotel dealer
for answers to any questions you might have. In addition, all of us at Rotel
welcome your questions and comments.
Save the RC-1572MKII shipping carton and all enclosed packing material
for future use. Shipping or moving the RC-1572MKII in anything other than
the original packing material may result in severe damage to your amplier.
If included in the box please complete the owner’s registration card or
register on line. Also be sure to keep the original sales receipt. It is your best
record of the date of purchase, which you will need in the event warranty
service is ever required.
Placement
Like all audio components that handle low-level signals, the RC-1572MKII
can be affected by its environment. Avoid placing the RC-1572MKII on top
of other components. Also avoid routing audio signal cables near power
cords. This will minimize the chance it will pick up hum or interference.
We recommend installing the RC-1572MKII in furniture designed to house
audio components. Such furniture is designed to reduce or suppress
vibration which can adversely affect sound quality. Ask your authorized
Rotel dealer for advice about component furniture and proper installation
of audio components.
The RC-1572MKII is supplied with an RR-AX93 remote control and must
be placed where the infrared signal from the remote can reach the front
panel Remote Sensor.
Cables
Be sure to keep the power cords, digital signal cables and regular audio
signal cables in your installation away from each other. This will minimize
the chance of the regular audio signal cables picking up noise or interference
from the power cords or digital cables. Using only high quality, shielded
cables will also help to prevent noise or interference from degrading the
sound quality of your system. If you have any questions see your authorized
Rotel dealer for advice about the best cable to use with your system.
The RR‑AX93 Remote Control
Some functions can be done with either the front panel controls, or the
supplied RR-AX93 remote control. When these operations are described,
the square call out numbers refer to the main unit, while the encircled letters
refer to the remote control.
Remote Control Batteries
Two UM-4/AAA size batteries (supplied) must be installed before the remote
control can be used. To install the batteries, remove the cover on the back of
the RR-AX93. Install the batteries as shown in the illustration in the battery
well. Test the control for proper operation, then replace the cover. When the
batteries become weak the remote control won’t operate the RC-1572MKII
consistently. Installing fresh batteries should eliminate the problem.
AC Power and Control
AC Power Input ]
Your RC-1572MKII is congured at the factory for the proper AC line voltage
in the country where you purchased it (either 120 volts AC or 230 volts AC
with a line frequency of either 50 Hz or 60 Hz). The AC line conguration
is noted on a decal on the back panel.
NOTE: Should you move your unit to another country, it may be possible
to recongure it for use on a different line voltage. Do not attempt to
perform this conversion yourself. Opening the enclosure of the unit
exposes you to dangerous voltages. Consult a qualied service person
or the Rotel factory service department for information.
NOTE: Some products are intended for sale in more than one country
and as such are supplied with more than one AC cord. Please only use
the one appropriate for your country/region.
RC-1572MKII should be plugged directly into a polarized wall outlet
using the supplied cable or other compatible cable as recommended by
your authorized Rotel dealer. Do not use an extension cord. A heavy duty
multi-tap power outlet strip may be used if it (and the wall outlet) is rated
to handle the current demanded by the RC-1572MKII and all the other
components connected to it.
If you are going to be away from home for an extended period of time
such as a month long vacation, it is a sensible precaution to unplug the
RC-1572MKII (as well as other audio and video components) while you
are away.
POWER Switch and Power Indicator 1A
Press the front panel Power Switch button 1to turn the unit on. The Power
Indicator light is illuminated when the unit is on. Press the Power Switch
button again to turn the unit off.
When the power switch is in the ON position, the remote control ON and
OFF buttons Amay be used to activate the RC-1572MKII. In Standby
mode the power LED remains illuminated, but the display is turned OFF.
12V TRIGGER Connection =
See Figure 5
Some audio components can be turned on automatically when they receive
a 12V turn on “signal”. The two 12V Trigger Outputs on the RC-1572MKII
provide the required signal. Connect compatible components to the
RC-1572MKII with a conventional 3.5mm mini mono plug cable. When the
RC-1572MKII is in standby mode or turned off, the trigger signal is disabled,
so the components controlled by it will be turned off.

11
English
Input Signal Connections
NOTE: To prevent loud noises that neither you nor your speakers will
appreciate, make sure the system is turned off when you make any
signal connections.
Phono Input eand Ground Connection (GND) 9
See Figure 3
Plug the cable from the turntable into the appropriate left and right phono
inputs. If the turntable has a “ground” wire, connect it to the screw terminal
to the left of the Phono inputs. This will help prevent hum and noise.
Line Level Inputs e
See Figure 3
The CD, Tuner, and Aux inputs of the amplier are analog “line level” inputs.
These inputs are for connecting components such as CD players or other
audio playback devices with an analog audio output.
The left and right channels are clearly labeled and should be connected to
the corresponding channels of the source component. The Left connectors
are white, the Right connectors are red. Use high quality RCA cables for
connecting input source components to the RC-1572MKII. Ask your authorized
Rotel dealer for advice about cables.
Balanced (XLR) Inputs u
See Figure 4
A pair of balanced XLR inputs accept audio signals from CD player, Blu-ray
player or other source components with XLR outputs.
NOTE: You should choose only one method of analog connection from
a source component to RC-1572MKII. Do not connect both the RCA and
XLR outputs of a source component to the RC-1572MKII at the same time.
Digital Inputs i
See Figure 5
There are two sets of digital inputs labeled COAXIAL 1 and 2, OPTICAL
1 and 2. Connect the COAXIAL or OPTICAL PCM outputs of your source
component into these sockets. The digital signals will be decoded and
played by the RC-1572MKII. The unit is capable of decoding PCM signals
up to 24 bit, 192kHz.
Output Connections
MONO SUB Output r
There are 2 connectors for mono subwoofer output to connect to a subwoofer.
These mono outputs are summed with both the left and right audio signal.
They are parallel outputs allowing 2 subwoofers to be connected to the
RC-1572MKII.
Preamp Output t
See Figure 3
A pair of RCA connectors supplies an analog output signal from the
RC-1572MKII to a power amplier with RCA unbalanced input connectors.
Balanced (XLR) Output y
See Figure 4
A pair of XLR balanced connectors supplies an analog output signal from
the RC-1572MKII to a power amplier with XLR balanced input connectors.
NOTE: Do not connect both the RCA and XLR to the same amplier
at the same time.
NOTE: Changes to the settings of the Volume, Balance or Tone controls
affect the signal from the XLR and Preamp outputs.
Headphone Output 6
The headphone output allows you to connect headphones for private listening.
This output accepts a standard 3.5mm (1/8”) mini stereo headphone
connector. Plugging in a set of headphones does not cut off the signal to the
preamp outputs. In most instances you should turn off the power amplier
when listening to headphones.
NOTE: Because the sensitivity of speakers and headphones can
vary widely, always reduce the volume level before connecting or
disconnecting headphones.
Remote Sensor 2
This remote sensor window receives IR commands from the remote control.
Please do not block this sensor.
Display 3
The front panel display shows the source selected, volume level and tone
settings. The display provides access to the setup and conguration menu
options of the amplier.
Front USB Input 5
The front USB input can be connected to an iPhone, iPad or iPod device
providing music playback. Simply plug the device into the front USB and
select USB function from the source selector. The iPod and iPhone remain
active allowing search and play functions.
APTX Bluetooth Connection [
The Bluetooth Antenna [on the RC-1572MKII’s back panel is for wireless
streaming via Bluetooth from your device (i.e. mobile phones, tablets or
computers). From your device, look for “Rotel Bluetooth” and connect to it.
Connection is normally automatic, but if prompted for a password, please
enter “0000” on your device. The RC-1572MKII’s supports both traditional
Bluetooth, AAC and APTX Bluetooth audio streaming.
Rear USB Power Port q
The rear USB port provides 5V/0.5 amps for charging or powering
USB devices including streaming music players. This port does not allow
playback of audio.
The port can be congured to remain powered even when the RC-1572MKII
is in standby mode through the front panel setup menu (See USB POWER
option on page 13).

12 RC‑1572MKII Stereo Control Amplier
This conguration option allows the attached streaming source to remain
powered for use with the Signal Sense function for automatic power on/
off control of the amplier.
NOTE: When configured to provide continuous power to the rear
panel USB port the RC-1572MKII will consume additional power even
when in standby mode.
Audio Controls
Volume Control 4G
Turn the controls clockwise to increase the volume, or counter clockwise to
decrease the volume. From the remote control press the volume + or - button
to turn the volume up or down. Press the MUTE Hbutton to completely
mute the volume.
Balance Control 8C
The Balance Control adjusts the left-to-right balance of the sound output. The
factory default is the center position or “0”. To change the balance from
the front panel, press the MENU 8button to toggle the front display to
BALANCE setting mode. Then press the - or + buttons on the front panel to
change the value to LEFT or RIGHT. The value can change from L15 to R15.
NOTE: This setting is saved permanently including after powering off
the RC-1572MKII.
To make temporary changes not saved after power off, from the remote
control press the BAL Cbutton to access the BALANCE setting menu, then
press the up/down/left/right Earrow buttons to adjust.
Tone Control Bypass 8C
Bass and Treble Control (Tone Control) circuits are bypassed at factory
default to ensure the purest possible sound. To turn on the tone control from
the front panel, press the MENU 8button to toggle to the Bypass control
then press the - or + buttons on the front panel to turn bypass on or off.
When tone bypass is set to on, the front display will show TONE BYPASS.
NOTE: This setting is saved permanently including after powering off
the RC-1572MKII.
To temporarily changes the Tone Control Bypass, press the BYPASS Cbutton
on the remote control to toggle the Bypass mode enabled and disabled.
Bass and Treble Controls 8C
To set the Bass or Treble controls from the front panel , press the MENU 8
button to toggle to the Tone control menu and press the ENTER 8button
to toggle to either the BASS or TREB Setting menu. Then press the - or +
button on the front panel to adjust the value. The Bass and Treble values
range from -10 to +10.
NOTE: These settings are saved permanently including after powering
off the RC-1572MKII.
To temporarily change the Bass and Treble settings from the remote control,
press the BASS or TREB Cbutton, then press the up/down/left/right E
arrow buttons on the remote control to adjust the value.
NOTE: Bass and Treble changes are only available when Tone Bypass
is disabled (see Tone Control Bypass section).
A properly setup high-performance audio system produces the most natural
sound with little or no adjustment of the tone controls. Use these controls
sparingly. Be particularly careful when turning the controls up as this
increases the power output in the bass or treble range, increasing the load
on the amplier and speakers.
NOTE: Setting the Bass and Treble controls do not automatically turn
on the tone control. To turn on tone control, refer to previous section
Tone Control Bypass.
Source Input Selector 7K
Press the corresponding input button on the front panel 7or remote control
Kto select the desired listening source.
Push the front panel source buttons to toggle between Optical 1 - 2 and
Coaxial 1- 2 or use the dedicated source button on the remote control.
Dimmer Control
Display Dimmer 8B
To change the brightness of the front display, press the MENU 8button
to toggle to the DIMMER Setting. Then press the - or + buttons on the front
panel to change the display brightness.
NOTE: This setting is saved permanently including after powering off
the RC-1572MKII.
To temporarily change the display brightness, press the DIM Bbutton on
the remote control.
POWER LED Dimmer 8
To change the brightness of the Power LED on the front panel, press the
MENU 8button to toggle to the POWER LED Settings. Then press the - or
+ buttons on the front panel to change the LED brightness.
Valid settings include: BRIGHT, MID, DIM.
NOTE: This setting is saved permanently including after powering off
the RC-1572MKII.
Rotel Link 0
Rotel Link is not used for RC-1572MKII.
EXT REM IN Jack -
This 3.5mm mini-jack receives command codes from industry-standard infrared
receivers via hard-wired connections. This feature could prove useful when
the unit is installed in a cabinet and the front-panel sensor is blocked. Consult
your authorized Rotel dealer for information on these external repeaters and
the proper wiring of a jack to t the mini-jack receptacle.
RS232 w
The RC-1572MKII can be controlled via RS232 for integration with
automation systems. The RS232 input accepts a standard straight DB-9
Male-to-Female cable.

13
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For additional information on the connections, software, and operating codes
for RS232 control of the RC-1572MKII, contact your authorized Rotel dealer.
PC‑USB Input o
See Figure 5
Connect this input using the supplied USB cable to the PC-USB socket of
your computer.
The RC-1572MKII supports both USB Audio Class 1.0 and USB Audio Class
2.0 modes. Windows computers do not require installation of a driver for
USB Audio Class 1.0 and support playback of audio up to 96kHz sampling
rates. The Factory Default setting is USB Audio Class 1.0.
To take advantage of USB Audio Class 2.0 audio playback supporting up to
384kHz sampling rates you will need to install the Windows driver supplied
on CD included with the RC-1572MKII. You will also need to switch the
RC-1572MKII to USB Audio Class 2.0 playback mode with the following:
• Press MENU on the front panel until “PC-USB AUDIO CLASS” appears
on the display.
• Select “2.0” using the “-” button then press “ENTER”.
• Power cycle the RC-1572MKII and reboot your PC after changing the USB
Audio mode to ensure both units are properly congured.
Many audio playback applications do not support 384kHz sampling rate.
Please conrm your audio player supports 384kHz audio and you have
384kHz audio les to properly playback this sample rate. Also, you may
need to congure the audio driver in your PC to output 384kHz or your
computer may “down sample” to a lower audio sample rate. For more
information please refer to your audio player or operating system information.
The RC-1572MKII has been certied as Roon Tested and compatible with
Roon software via PC-USB.
Being Roon Tested means that Rotel and Roon have collaborated to ensure
you have the best experience using Roon software and the RC-1572MKII
together, so you can just enjoy the music.
For the best user experience it is suggested to use USB Audio Class 2.0
when using Roon.
NOTE: USB Audio Class 2.0 required installation of the Windows PC
driver on the CD ROM included with the RC-1572MKII.
NOTE: MAC computers do not require a driver to support PC-USB
1.0 or 2.0 audio.
NOTE: Upon successful installation of the driver, you may need to select
the ROTEL audio driver from the audio/speaker setup of your computer.
NOTE: Support for MQA and MQA Studio requires USB Audio Class
2.0. Please select USB Audio 2.0 to support MQA.
Network Connection p
The RC-1572MKII can be attached to a network using the rear panel
NETWORK socket p. The NETWORK congurations allow both STATIC
and DHCP IP addressing. See the Network section of this manual under
Setting Menu for IP address conguration information.
The NETWORK connection allows software updates to be downloaded from
the Internet. The NETWORK connection also allows IP control for integration
with automation systems.
For additional information on the IP control please contact your authorized
Rotel dealer.
Settings Menu
You can access the settings menu from the front panel by pressing the
MENU 8button or the SETUP Dbutton on the remote control. You can
change the value of the selected option by pressing the +/- buttons on the
front panel or up/down/left/right Earrow buttons on the remote control.
Step through the sub-menus by pressing the MENU 8button on the front
panel or SETUP Dbutton on the remote control.
• Tone Control: TONE BYPASS ON/OFF, BASS level and TREBLE levels can
be changed to desired settings. Press the ENTER button on the front panel
or the ENT button on the remote control to toggle between the tone setup
options. (For more information on Tone Control refer to the Tone Control
Bypass, Bass and Treble control sections.)
NOTE: These settings are stored permanently even after the RC-1572MKII
is powered off.
• BALANCE: Changes left/right balance (For more information on Balance
sections).
NOTE: This setting is stored permanently even after the RC-1572MKII
is powered off.
• DIMMER: Dims the display.
NOTE: This setting is stored permanently even after the RC-1572MKII
is powered off.
• POWER LED: Dims the Power LED on the front panel.
NOTE: This setting is stored permanently even after the RC-1572MKII
is powered off.
• POWER ON MAX VOLUME: This sets the maximum volume level when
the unit is turned ON. “45” is the factory default.
NOTE: Power On Max Volume settings do not apply to sources
configured with Fixed Gain.
• POWER OPTION: Enables the RC-1572MKII to be controlled via the network
port when attached to an automation system. The power consumption is

14 RC‑1572MKII Stereo Control Amplier
NOTE: The Volume knob on the front panel and Volume +/- buttons
on the IR remote are disabled when the volume is Fixed. To disable this
feature set the Fixed Volume level to “Variable”.
• PC-USB AUDIO CLASS: Changes supported PC-USB Audio Class of the
attached device.
NOTE: Some computers attached to the PC-USB do not support USB
Audio Class 2.0 and do not support 32/384 audio playback. If needed
the PC-USB can be configured for USB Audio Class 1.0. Please consult
your computer operating system for details.
• PC-USB AUDIO MODE: Change PC-USB Audio mode to support MQA
and PCM Audio up to 24bits or PCM Audio Only up to 32bits. When
PCM 32B is selected MQA audio is not supported. To playback MQA
the MQA/24B option must be selected.
Valid settings include: MQA/24B (Default), PCM 32B.
• NETWORK: Shows the network connection status and to view/congure
the network settings. If the network is properly congured and attached,
“Connected” will be displayed. To view or modify the network settings,
press the ENTER button.
The RC-1572MKII supports both DHCP and STATIC IP addressing. Select
the desired IP address method and press ENTER.
If DHCP is selected you can refresh IP address by pressing ENTER or press
MENU to view IP address information. Press the MENU button to toggle
through IP address settings. If the IP address is renewed the network will
be tested and connection status reported.
If STATIC IP address mode is selected you must congure all settings for the
network including IP Address, Subnet Mask, Gateway and DNS Server.
Use the up/down/left/right arrow buttons or the +/- buttons to adjust
the values and press ENTER to move to the next value. When the proper
IP information is congured press MENU to go to the next setting. After
entering the STATIC IP address information the network will be tested and
connection status reported.
NOTE: For more information regarding network connection please
contact your authorized Rotel dealer.
NOTE: A network connection is not required for the RC-1572MKII to
operate.
• MAIN: This shows the current software version loaded into the
RC-1572MKII. The software can be updated if the RC-1572MKII is properly
connected to the Internet.
• Press ENTER to check if a new software version is available.
• If a new software version is available press the + button on the front
panel or the up/right button on the remote control to select YES then
press ENTER button to begin the software update process.
• The new software will be downloaded from the Internet. The RC-1572MKII
will power cycle when the software update is complete.
NOTE: Do NOT power off the RC-1572MKII during the software
update process.
higher in Quick Power mode. If network control is not required select the
Normal Power mode. “Normal” is the factory default.
Valid settings include: Normal, Quick.
NOTE: WhenthePOWEROPTIONisconfiguredtoQuick,theRC-1572MKII
will consume additional power in standby mode.
NOTE: Due to local power consumption regulations the POWER OPTION
function is not available in all markets.
• USB POWER: This option allows the rear panel USB connector to provide
power, even when the RC-1572MKII is in standby mode.
To enable the continuous power mode select the ALWAYS option. To provide
power only when the RC-1572MKII is powered on, select the NORMAL
option. The default for USB POWER is set to NORMAL.
NOTE: The front panel power button must be in the ON position to
supply power to the rear panel USB connector.
NOTE: When the USB POWER is configured to ALWAYS the RC-1572MKII
will consume additional power in standby mode to supply USB power.
NOTE: Due to local power consumption regulations the USB POWER
function is not available in all markets.
• AUTO POWER OFF: The RC-1572MKII can be congured to automatically
power off if unused for a specied period. If no changes are made to the
unit within the specied “Auto Power Off” timer the unit will automatically
go to STANDBY mode. The Auto Power Off timer will be restarted if
changes are made to the volume, source or playback. The default for
Auto Power Off is set to 20 MINS.
Valid settings include: 20 MINS (Default), DISABLE, 1 HOUR, 2 HOURS,
5 HOURS, 12 HOURS.
• FIXED GAIN: Congures a Fixed Volume level for a specied input. To
enable this feature press the +/- buttons to select the desired xed volume
level for Aux, USB, PC-USB, Optical 1, Optical 2, Coax 1, Coax 2 or
Bluetooth. When enabled and the input with a Fixed Volume is selected,
the Volume level will immediately be set to the specied level.
Valid settings include: VARIABLE, FIXED 01-95, FIXED MAX.
• AUX VOL: VARIABLE (disabled) is factory default.
• USB VOL: VARIABLE (disabled) is factory default.
• PC-USB VOL: VARIABLE (disabled) is factory default.
• OPT1 VOL: VARIABLE (disabled) is factory default.
• OPT2 VOL: VARIABLE (disabled) is factory default.
• COAX1 VOL: VARIABLE (disabled) is factory default.
• COAX2 VOL: VARIABLE (disabled) is factory default.
• BTOOTH VOL: VARIABLE (disabled) is factory default.

15
English
NOTE: It is recommended to Reset Factory Defaults after the software
update is complete.
• PC-USB: This shows current loaded software version for PC-USB processor.
• SIGNAL SENSE: Check if an audio signal is present on the congured
Signal Sense input. The RC-1572MKII monitors the data stream to
determine if there is audio. If there is no audio detected for 10 minutes,
the RC-1572MKII will enter Signal Sense Power Mode. When in Signal
Sense Power Mode and the RC-1572MKII detects audio on Signal Sense
input, the unit will automatically power on. To disable this function, select
the OFF option which is the factory default setting.
NOTE: When the SIGNAL SENSE function is activated, the RC-1572MKII
will consume additional power in signal sense standby mode.
NOTE: Due to local power consumption regulations the SIGNAL SENSE
function is not available in all markets.
• FACTORY DEFAULT: This sets the unit back to the original state as when
it left the factory. Press the + button on the front panel or the Right button
on the remote control to select <YES> then press the ENTER button on the
front panel or the ENT button on the remote control.
NOTE: All previously configured options will be erased and reset to
the factory default settings.
Troubleshooting
Most difculties in audio systems are the result of incorrect connections,
or improper control settings. If you encounter problems, isolate the area
of the difculty, check the control settings, determine the cause of the fault
and make the necessary changes. If you are unable to get sound from the
RC-1572MKII, refer to the suggestions for the following conditions:
Power Indicator Is Not Illuminated
The Power Indicator ring around the power button and the basic items in
the Display window should be illuminated whenever the RC-1572MKII is
plugged into the wall power outlet and the POWER switch is pushed in. If
it does not illuminated, test the power outlet with another electrical device,
such as a lamp. Be sure the power outlet being used is not controlled by a
switch that has been turned off.
Fuse Replacement
If another electrical device works when plugged into the power outlet,
but the Power Indicator still will not illuminated when the RC-1572MKII is
plugged into the wall outlet, it indicates that the internal power fuse may
have blown. If you believe this has happened, contact your authorized Rotel
dealer to get the fuse replaced.
No Sound
Check the signal source to see if it is functioning properly. Make sure the
cables from the signal source to the RC-1572MKII inputs are connected
properly. Check all the wiring between the RC-1572MKII and the power
amplier, and the speakers.
Cannot Connect via Bluetooth
If you cannot pair your Bluetooth enabled device to the RC-1572MKII, delete
the memory of the previous connection on the RC-1572MKII and on your
device. On your device this is often listed as “Forget this Device”. Then try
to make the connection again.
Playable Audio Format
USB Apple (iPhone, iPod, iPad)
Format Notes
Any supported le
loaded to Apple
device.
Any supported le loaded to Apple device. Phone may
resample depending on stored format. May exclude
Apps designed to play formats not originally supported
by the sending device.
APTX and AAC Bluetooth
Format Notes
Any format supported
by the sending device.
May exclude Apps designed to play formats not originally
supported by the sending device.
PC-USB
Format Notes
Format determined
by the Media Player/
Server software that
you use.
Any supported format by the PC software:
PCM Audio:
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz,
192 kHz, 384 kHz
16 Bit, 24 Bit, 32 Bit
MQA, MQA Studio (24 Bit / 384 kHz)
Roon Tested
Coax/Optical
Format Notes
SPDIF LPCM
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz,
192 kHz
16 Bit, 24 Bit

16 RC‑1572MKII Stereo Control Amplier
Specications
Total Harmonic Distortion (20 Hz - 20 kHz) < 0.004%
Intermodulation Distortion (60 Hz : 7 kHz, 4:1) < 0.004%
Input Sensitivity / Impedance
Phono Input (MM) 3 mV / 47k ohms
Line Level Inputs (RCA) 200 mV / 100k ohms
Line Level Inputs (XLR) 300 mV / 100k ohms
Input Overload
Phono Input 63 mV
Line Level Inputs (RCA) 4 V
Line Level Inputs (XLR) 5 V
Output Level
Line Level (RCA) 1 V
Balance (XLR) 2 V
Frequency Response
Phono Input 20 Hz - 20k Hz, + 0.3, -- 0.2 dB
Line Level Inputs (RCA) 10 Hz - 100k Hz, + 0, -- 0.2 dB
Line Level Inputs (XLR) 10 Hz - 100k Hz, + 0, -- 0.2 dB
Tone Controls
Bass ± 10 dB at 100Hz
Treble ± 10 dB at 10kHz
Signal to Noise Ratio (IHF “A” weighted)
Phono Input 80 dB
Line Level Inputs (RCA) 118 dB
Line Level Inputs (XLR) 118 dB
Channel Separation
Phono Input > 85 dB
Line Level Inputs (RCA) > 85 dB
Line Level Inputs (XLR) > 75 dB
Digital Section
Frequency Response 20 Hz - 20k Hz (0 ± 0.5dB Max)
Signal to Noise Ratio (IHF ”A” weighted) 100 dB
Input Sensitivity / Impedance 0 dBfs / 75 ohms
Preamplifier Output Level 1.44V (at -- 20dB)
Coaxial/Optical Digital Signals SPDIF LPCM
(up to 192k Hz 24 bit)
PC-USB USB Audio Class 1.0
(up to 96k Hz 24 bit)
USB Audio Class 2.0
(up to 384k Hz 32bit)*
*Driver installation required
MQA and MQA Studio
(up to 384k Hz 24bit)*
Roon Tested
General
Power Requirements:
USA: 120 volts, 60 Hz
EC: 230 volts, 50 Hz
Power Consumption 35 watts
Standby Power Consumption
Normal < 0.5 watts
Network wakeup < 2 watts
BTU (4 ohms, 1/8 power) 65 BTU/h
Dimensions (W x H x D) 431 x 99 x 338 mm
(17 x 3 7/8x 13 1/4ins)
Front Panel Height 2U (88.1 mm, 3 1/2ins)
Weight (net) 8.4 kg, 18.5 lbs.
All specifications are accurate at the time of printing.
Rotel reserves the right to make improvements without notice.
Rotel and the Rotel Hi-Fi logo are registered trademarks of The Rotel Co., Ltd, Tokyo,
Japan.
“Made for iPod,” and “Made for iPhone,” means that an electronic accessory
has been designed to connect specically to iPod or iPhone, respectively, and
has been certied by the developer to meet Apple performance standards.
Apple is not responsible for the operation of this device or its compliance with
safety and regulatory standards. Please note that the use of this accessory
with iPod, or iPhone may affect wireless performance.
iPhone, iPod, iPod classic, iPod nano, and iPod touch are trademarks of
Apple Inc., registered in the U.S. and other countries.

RC-1572MKII Owner’s Manual Ver C 052421 English
The Rotel Co. Ltd.
Tachikawa Bldg. 1F.,
2-11-4, Nakane, Meguro-ku,
Tokyo, 152-0031
Japan
Rotel USA
Sumiko
6655 Wedgwood RD N, Suite 115
Maple Grove, MN 55311
USA
Phone: [phone] (option 2)
E-mail: ser[email protected]
Rotel Canada
Kevro International
902 McKay Rd. Suite 4
Pickering, ON L1W 3X8
Canada
Tel: [phone]
Rotel Europe
Dale Road
Worthing, West Sussex BN11 2BH
England
Phone: + 44 (0)1903 221 710
Fax: [phone]
www.rotel.com