0
N
0
N
DUAL-MONAURAL PREAMPLIFIER OWNER’S MANUAL
526
523
TABLE OF CONTENTS / ABOUT THIS DOCUMENT
TABLE OF CONTENTS
About This Document 2
Special Design Features 3
Installation Considerations 4
Unpacking, Placement and Ventilation, Power Requirements, Operating States
Getting Started 6
Front-Panel Overview: Rear Panel, Remote Control Overview
Quick Setup and Listen 12
Remote Control, Initial Connections
Setup Menu 15
Setup Menu Navigation, Input Setup, Volume Control, Power Management and Display, Advanced, Output
SSP Setup 20
Troubleshooting 22
Specifications 24
ABOUT THIS DOCUMENT
This Owner’s Manual covers unboxing of, familiarization with,
and configuration of your preamplifier. This manual will enable
you to finely tailor the behavior and performance of the preamp
to fit your preferences and the particulars of your equipment and
listening room. It is strongly recommended that you follow this
manual in the order in which it is written so that you understand
safety considerations before configuring this sophisticated
preamplifier.
2
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
SPECIAL DESIGN FEATURES
SPECIAL DESIGN FEATURES
Thank you for purchasing a № 526 or № 523 dual-monaural
preamplifier. Combining Mark Levinson’s unsurpassed analog
performance with flexible system configuration and optional
advanced digital and phono capabilities, these preamplifiers
push the reproduction of source material to new levels of
realism.
Architecture
The foundation of these preamplifiers is their proprietary
Mark Levinson discrete, direct-coupled, fully balanced, dualmonaural signal path with discrete, balanced R-2R ladder
volume controls. They feature individual signal switching
relays for each of their stereo inputs: two balanced (XLR)
and three single-ended (RCA), plus phono; and six additional
digital inputs on the № 526. Volume controls use discrete 15bit R-2R ladders and low-noise analog switches for the widest
possible bandwidth and maximum signal integrity. System
integration and expansion are possible using the outputs, which
can operate full-range or with a switchable fourth-order, 80Hz
filter allowing for seamless integration systems with powered
subwoofers.
Audio Chassis
Building upon this superb analog platform, the № 526 adds
equally outstanding digital audio capability. An ESS SABRE32
D/A converter with proprietary jitter elimination circuitry and
fully balanced, discrete I/V circuitry forms the heart of the digital
audio processing stage. Six digital audio inputs are provided
including one AES/EBU, two coaxial and two optical plus a USB
audio processor capable of asynchronous data transfer of highresolution DSD and PCM at up to 192kHz, 32-bit resolution. For
low-resolution audio formats, proprietary HARMAN Clari-Fi®
music restoration technology reconstructs information and
bandwidth lost in compressed file formats. System integration
and communication ports include Ethernet, USB, RS-232, IR
input, and 12V trigger input and output. A system IR remote
control is included.
Features
• Mark Levinson proprietary discrete, direct coupled, fully
balanced, dual-monaural signal path
• Discrete, balanced R-2R ladder volume controls
• Digital inputs: USB asynchronous, AES/EBU balanced, two
Toslink optical, two Coaxial (№ 526 only)
• Analog inputs: two balanced, three unbalanced, phono with
grounding pin
• Analog outputs: XLR balanced pair, RCA unbalanced pair, 1/4inch (6.3mm) headphone
• Supports high-resolution formats including 32-bit, 192kHz
PCM and double-speed DSD (№ 526 only)
• Mark Levinson DAC featuring the renowned ESS Sabre 32-bit
processor (№ 526 only)
• Phono stage with selectable gain, infrasonic filter, resistive
and capacitive-loading settings
• Selectable fourth-order, 80 Hz high-pass filter allows
seamless integration of subwoofer
• Designed and handcrafted in the USA
ENGLISH
Construction
The chassis of the preamplifiers utilizes modular architecture
to isolate critical low-level analog and digital circuitry from the
power supplies. The 6000-series extruded aluminum and steel
chassis features internal heatsinks and Mark Levinson’s iconic
appearance of black with silver trim.
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
3
INSTALLATION CONSIDERATIONS
INSTALLATION CONSIDERATIONS
UNPACKING
When unpacking your preamplifier:
• Save all packing materials in case you need to ship your
preamp in the future.
• Inspect your preamp for signs of damage during shipment. If
you discover damage, contact your authorized Mark Levinson
dealer for assistance in making appropriate claims.
• Please register your preamplifier within 15 days of purchase
at marklevinson.com.
• Retain your original, dated sales receipt as proof of warranty
coverage.
• Remove the accessory box from the shipping carton. Make
sure that all of the items listed below are included. If any are
missing, contact your authorized Mark Levinson dealer.
o IEC power cord (terminated according to the region to
which the unit is shipped)
o Remote control with preinstalled batteries
o Phillips screwdriver (for replacing remote batteries)
o Pair white gloves (for use during unpacking and initial
setup)
o Documentation
PLACEMENT AND VENTILATION
• Install the preamplifier on a shelf with several inches of
clearance above it to ensure proper ventilation. Do NOT
install the preamplifier inside of an enclosed cabinet or rack.
• Ensure that you install the preamplifier on a solid, flat and
level surface.
• Install the preamplifier as close as possible to associated
audio components to keep interconnecting cables as short as
possible.
• Select a dry, well-ventilated location that is out of direct
sunlight.
• DO NOT expose the preamp to high temperatures, humidity,
steam, smoke, dampness, or excessive dust.
• DO NOT block chassis ventilation holes.
POWER REQUIREMENTS
The preamplifier is configured at the factory for 100, 115, or
230 VAC power operation at 50Hz or 60Hz. Before operating,
ensure that the power label on the rear panel near the AC input
connector indicates the correct operating voltage. A detachable
IEC power cable intended for use in the region where the unit is
sold is included.
Connection to an AC voltage other than that for which the
unit is intended can create a safety and fire hazard and may
damage the unit. If you have any questions about the voltage
requirements for your preamplifier or about the line voltage in
your area, contact your authorized Mark Levinson dealer before
plugging the unit into an AC power outlet.
WARNING! MAKE SURE all components in the audio
system are properly grounded. Do NOT defeat the
safety purpose of polarized or grounding-type plugs
with “ground-lifter” or “cheater” adapters. Doing so
may cause dangerous voltage to build up between
components, which may result in personal injuries and/
or product damage.
You should unplug the preamplifier from the AC wall outlet during
lightning storms and extended periods of non-use.
CAUTION: BEFORE moving the unit, make sure it is powered off
by removing the power cord from the AC power outlet and the
unit’s rear panel.
4
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
OPERATING STATES
The preamplifier has three operating states:
Off: The AC mains power is disconnected by using the rearpanel Power switch or by removing the power cord from the
rear panel.
Standby: The Standby mode has three settings that can be
selected via the Setup menu: Green, Power Save, and Normal.
INSTALLATION CONSIDERATIONS
ENGLISH
Green:
This mode removes power from almost all of the
circuits, allowing the unit to be activated only via an IR control
signal, a 5V – 12V trigger or a press of the Standby button.
This mode provides maximum power conservation and is the
factory-default Standby mode. In Green standby, the LED is
dimmed.
Power Save:
This mode removes power from the audio circuits,
but keeps the control circuitry powered and ready to receive
commands from either the front panel controls or the remote
control. This mode provides moderate power conservation.
In Power Save standby, the LED is dimmed.
Normal:
This mode shuts off the display and mutes its audio
outputs, but keeps all of its control and audio circuits powered.
This mode provides the least amount of power conservation
but allows the audio circuits to remain warmed up to deliver
optimal performance at all times. Power consumption: 100W.
On: The entire unit is powered up and all configured outputs
are active.
The preamplifier has an Auto Off feature that automatically
places it into the Standby mode after 20 minutes of no user
control input or audio signal passing through the unit. The
factory-default setting for the Auto Off feature is on (engaged).
You can turn the Auto Off feature off (disengaged) in the Setup
menu.
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
5
GETTING STARTED
GETTING STARTED
FRONTPANEL OVERVIEW:
Input
Knob
headphones
Headphone
Output
Connector
N0 526 AND N0 523
IR
Receiver
polarity
Setup Button
Polarity Button Enter
setup
enter
Button
Front-panel controls/indicators
Input knob:
Rotate this knob to select the desired input to send
to the outputs. The name and volume level of the selected input
are indicated on the display. (Note: the Input knob will bypass
any input for which the Input Name Setup menu parameter has
been set to “Unused.”)
IR receiver:
the IR receiver receives commands from the
included remote control when the unit is not being controlled
via its rear-panel IR Input connector (see Rear-Panel Overview
for more information). Infrared communication requires lineof-sight between the remote and this “target” on the unit’s front
panel.
Volume
Knob
volumeinput
Intensity
Button
balance mute
Balance
Button
Mute Button
Standby
Display
Button
this ¼-inch (6.3mm) TRS phone
display intensity
Headphone output connector:
plug connector provides a line-level stereo signal that can drive
most headphones. When the unit detects that headphones have
been connected, the Balanced and Single-Ended outputs are
automatically muted, and the Volume knob switches to control
of the Headphone output level. When the unit detects the
headphones have been disconnected, the Balanced and SingleEnded outputs are automatically unmuted, and the Volume
knob returns to control of their level.
The balanced and single-ended outputs can be configured in
the Setup menu as Fixed (for use with recording components
or a second audio zone). When outputs are configured as Fixed,
they are not affected by any of the front-panel controls.
6
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
GETTING STARTED
Polarity button:
pressing this button inverts the absolute
polarity of the signal. The associated LED illuminates when the
signal’s polarity is inverted.
Setup button:
press this button to display the Setup menu, which
you can use to customize the preamp to suit your other system
components, individual preferences and listening space. The
Setup LED lights when the Setup menu is active.
Enter button:
press this button to select or deselect a menu
item when the Setup menu is displayed. When playing from a
digital source, pressing the Enter button displays the sample
rate, unless the PLL Lock is set to Wide.
Display Intensity button:
Press this button to change the
intensity of the front-panel display. Multiple presses of the
Display Intensity button cycle through the available brightness
levels: High, Medium, Low, and Off.
Balance button:
press this button to enter adjustment of the
left-to-right channel output balance (disabled if outputs are set
to Fixed in the Setup menu). The Balance LED lights when the
balance function is active.
NOTE: the Balance LED remains lit when the left-toright balance of the Main outputs is offset. Headphone
Balance can be adjusted independently of the Balanced
or Single-Ended outputs.
ENGLISH
Mute button:
press this button to mute and unmute the level of
the outputs by the amount determined in the Setup menu. The
LED lights when the mute function is active.
Volume knob:
turn this knob to adjust the volume level of the
outputs. The minimum volume level is OFF; the maximum
volume level is determined in the Setup menu. Whenever you
select an input, the unit applies the volume offset selected for it
in the Setup menu to the output volume level.
Standby button:
press this button to put the unit into and out of
the selected Standby mode. The LED illuminates when the unit
is On. When the unit is in Standby mode, it flashes slowly, with
brightness level to indicate Standby mode.
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
7
GETTING STARTED
N0 526 AND N0 523 REAR PANEL
Right Channel
Balanced output
connector
Right Channel
Single-ended
output connector
Right Channel
Coaxial Analog
Input Connectors
Left Channel
Coaxial Analog
Input Connectors
Left Channel
Single-ended
output connector
main outputs
Designed and assembled in U.S.A.
Harman International I ndustries, Inc.
PREAMPLIFIER N
S/N
Right Channel
Balanced Analog
Input Connectors
analog audio inputs
1 2
O
526
input connectors
phono inputs
ground tfelthgir
Phono
Micro USB
connector
USB Type-A
connector
3 4 5
Ethernet
Port
IR Input
Connector
RS-232
Port
IR
RS-232
Balanced
AES/EBU
Digital Input
Connector
Left Channel
Balanced Analog
Input Connector
trigger
in
out
out
1
analog audio inputs
345
2 3 4 5 6
12
digital audio inputs
main outputs
Left Channel
Balanced output
connector
~ ac mains
120W
Coaxial
Digital Input
Connectors
AC Mains
Connector
Trigger Input
Connector
Trigger Output
Connectors
Optical
Digital Input
Connectors
Power
Switch
USB Digital Audio
Input Connector
Fuse Compartment
0
526 Only
N
(see rear-panel
labeling for value)
8
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
GETTING STARTED
Output Connectors
Balanced output connectors:
these XLR 3-pin connectors
provide a line-level left-channel and right-channel signal that
can be used to send the selected input to power amplifier
inputs, a powered subwoofer, or to recording components.
Mark Levinson recommends using the Balanced outputs as the
primary output if your amplifiers offer balanced inputs.
Single-ended output connectors:
these RCA connectors
provide a line-level left-channel and right-channel signal that
can be used to send the selected input to amplifier inputs, a
powered subwoofer, to a second listening zone, or to recording
components.
The Balanced and Single-ended outputs can be configured
in the Setup menu as Fixed (for use with recording
components or a second audio zone). When outputs are
configured as Fixed, they are not affected by any of the
front-panel controls.
If your system includes a powered subwoofer, you can
configure the Balanced or Single-ended outputs in the
Setup menu as Variable. When so configured, the Balanced
and Single-Ended outputs will follow the settings of the
Volume, Balance and Mute controls. The Headphone
output is always variable.
Balanced
Input Connector
(female XLR)
Pin
Pin
3
2
Pin
1
Single-ended input connectors (3, 4, 5):
Balanced
Output Connector
(male XLR)
Pin
Pin
1
Pin
3
2
these connectors accept
left-channel and right-channel single-ended (unbalanced)
input signals from source components without balanced output
connectors. Mark Levinson recommends using balanced
connections whenever possible.
Phono input connectors:
these connectors accept left-channel
and right-channel input signals from turntables with movingmagnet or moving-coil cartridges that do not have a built-in
preamplifier. Connect the turntable output cable’s grounding
terminal to the preamplifier’s ground pin by loosening the
threaded collar, inserting the terminal, and tightening the collar
using your fingers only. Do not tighten the ground pin collar with
tools.
ENGLISH
Additionally, if you would like to include a powered
subwoofer in your system, you can to restrict the low
frequencies sent to your main speakers by engaging the
unit’s 24dB-per-octave Butterworth 4th-order 80Hz highpass filter, which can be applied to either the Balanced or
Single-Ended outputs.
For further information on configuring these parameters,
see the Setup Menu section of this manual.
Input Connectors
Balanced analog input connectors (1, 2):
these connectors
accept left-channel and right-channel balanced input signals
from source components with balanced (male XLR) output
connectors.
Balanced connector pin assignments:
• Pin 1: Signal ground
• Pin 2: Signal + (non-inverting) “hot”
• Pin 3: Signal – (inverting) “cold”
№ 526 only:
Digital input connectors: the № 526 has six digital audio
input connectors:
• One AES/EBU Balanced XLR, numbered 1
o Mark Levinson recommends using the
Balanced connection whenever possible.
• Two Coaxial S/PDIF RCA, numbered 2 and 3
• Two Optical S/PDIF TOSLINK, numbered 4 and 5
• One Asynchronous USB Type B, numbered 6
o The USB connection us used for streaming
audio from your computer.
Control Connectors
Micro USB connector:
this connection enables the unit to be
connected to a computer for internal webpage discovery. When
the unit is connected to power and network, the preamplifier
will mount to the PC as a mass-storage device containing a
hyperlink to its internal web page for configuration and status
monitoring.
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
9
GETTING STARTED
USB Type-A connector:
the connector is for attaching a USB
flash drive containing unit software update, or for importing
and exporting setup configurations. Further information on
software updates is available from the Setup Menu: Advanced
section of this manual
Ethernet connector:
.
This connector accepts a Cat5 or higher
cable for connection to a home network. For information on
how to configure and use the Ethernet port, see Setup Menu:
Advanced section of this manual
IR input connector:
this 1/8-inch (3.5mm) connector accepts IR
.
(infrared) control signals from other equipment. (see trigger
illustration below)
RS-232 connector:
this RJ-11 connector provides serial control
through a standard RS-232 connection.
Trigger output connectors:
these 1/8-inch (3.5mm) TS phone
plug connectors can be used to activate other components in
the audio system and listening room, such as amplifiers, lights,
and window shades. A 12V 100mA DC signal is output whenever
the unit is on. The trigger can also be pulsed and delayed. (See
illustration)
Trigger phone plug connector pin assignments:
REMOTE CONTROL OVERVIEW
Setup
Button
Input
Buttons
Polarity
Button
Display
Button
N0 526 Only
Standby
Button
Enter
Button
Volume
Buttons
Balance
Button
Mute
Button
USB
Control
Buttons
Clari-Fi
Button
• Tip: +
• Sleeve: –
Trigger input connector:
this 1/8-inch (3.5mm) TS phone plug
connector can be connected to the trigger output of another
system component or control system that supplies a trigger
voltage. Whenever the unit detects a voltage between 5V and
12V DC at this connection, it will turn On from Standby. When
the trigger signal at this connection ceases, the unit will enter
the selected Standby mode. (See illustration)
AC Mains connector:
This connector provides AC power to the
unit when the supplied power cord is connected from it to an
AC electrical outlet. Unplug the preamplifier from the AC wall
outlet during lightning storms and extended periods of non-use.
Power switch:
this mechanical switch turns the unit’s power
supply on or off. During normal operation, do not use the Power
switch to power off the unit; instead, use the Standby button.
Standby button:
press this button to put the unit into and out of
the selected Standby mode.
Input buttons:
press these buttons to select the desired input.
The name and volume level of the selected input are indicated
on the front-panel display.
Volume buttons:
press these buttons to adjust the volume level
of the Balanced outputs––and the Single-Ended outputs if you
have set them to Variable in the Setup menu, or the Headphone
output if you have connected headphones. The minimum
volume level is OFF; the maximum volume level is determined
in the Setup menu.
Whenever you select an input, the unit applies the volume offset
selected for it in the Setup menu to the Main output volume
level (and to the Line output volume level if you have set it to
Variable in the Setup menu).
Setup button:
press this button to display the Setup menu, which
you can use to customize the preamplifier to suit your individual
preferences, listening space and other system components.
The Setup LED on the front panel illuminates when the Setup
menu is active.
10
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
GETTING STARTED
Mute button:
press this button to mute and unmute the level
of the Balanced outputs––and the Single-Ended outputs if you
have set them to Variable in the Setup menu, or the Headphone
output if you have connected headphones––by the amount
determined in the Setup menu. The Mute LED on the front panel
lights when the mute function is active.
Enter button:
press this button to select or deselect a menu
item when the Setup menu is displayed.
Balance buttons:
press this button to edit the left-to-right
channel balance sent to the Balanced outputs, Single-Ended
outputs if set to Variable in the Setup Menu, or Headphone output
if headphones are connected. The Balance LED illuminates
when Balance adjustment is active. It also illuminated when
Balance adjustment is inactive if the left-to-right channel
balance is offset from 0.
Clari-Fi® button (№ 526 only): pressing this button activates
or deactivates HARMAN Clari-Fi music restoration
technology. After turning Clari-Fi on, the unit will display
the Clari-Fi Intensity menu, which can be adjusted from 0
to 9 using the Volume buttons.
Clari-Fi can be applied to digital input sources only.
ENGLISH
Polarity button:
pressing this button inverts the absolute
polarity of the signal at the outputs. The Polarity LED on the
front panel illuminates when the signal’s polarity is inverted.
Display button:
press this button to change the intensity of the
front-panel display. Multiple presses of the Display button cycle
through the available brightness levels: High, Medium, Low, Off.
If the display is Off and the unit is On, press the Display button
to turn the display on.
USB transport control buttons (№ 526 only): when the
USB Type-B input is selected and software that supports
external USB controls (such as Apple iTunes®), these
buttons control playback.
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
11
QUICK SETUP AND LISTEN
QUICK SETUP AND LISTEN
REMOTE CONTROL
Your remote control comes with two preinstalled AAA alkaline
batteries. To replace the batteries, remove the remote control’s
battery cover using the included screwdriver, insert the batteries
and replace the battery cover. Be sure to observe proper battery
polarity.
When using the remote control, aim it toward the front-panel IR
receiver. Make sure that no objects, such as furniture, block the
remote’s view of the receiver. Bright lights, fluorescent lights,
and plasma video displays may interfere with the function of the
remote.
• The remote has a range of about 17 feet (5m), depending on
the lighting conditions.
• You can use the remote at an angle of up to 45°.
• Placing the unit behind tinted glass will reduce the remote
control’s effective range.
INITIAL CONNECTIONS
CAUTION: Before making connections, make sure the
preamplifier and all associated components are powered off
and disconnected from electrical outlets.
1. Connect your amplifier(s) to the preamplifier’s output
connectors. Mark Levinson recommends using the Balanced
output connectors if your amplifier(s) have balanced input
connectors. Otherwise, use the Single-ended output
connectors.
2. Connect analog source components’ outputs to the preamp’s
analog audio inputs. Mark Levinson recommends using
Balanced connections whenever they are available.
3. (№ 526 only) Connect digital source components’ outputs
to the preamp’s digital audio inputs. If you are connecting
a computer via USB, download and install the USB driver
software from the product web page at marklevinson.com,
under the Downloads tab.
4. Connect the supplied power cable to the preamp’s AC Mains
connector and into an electrical outlet. Turn the rear-panel
Power switch on the preamp to On, and turn on all associated
components.
5. Press the front-panel Standby button or the Standby button
on the remote control.
6. Turn the Input knob or press the Input buttons on the remote
to select the input that corresponds to an input connector to
which you connected a source component.
7. Make sure the preamp’s volume is set to a reasonable level.
It is best to start low and turn up to avoid unintentionally
damaging your equipment. Begin playing the selected source
device.
12
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
N0 526 connections
DIGITAL SOURCE
COMPONENT
TO DIGITAL
OUTPUT
QUICK SETUP AND LISTEN
COMPUTER
ENGLISH
main outputs
Designed and assembled in U.S.A.
Harman International Industries, Inc.
TURNTABLE
O
526
PREAMPLIFIER N
S/N
ANALOG SOURCE
ANALOG SOURCE
analog audio inputs
1 2
phono inputs
ground tfelthgir
SINGLE-ENDED
COMPONENT
BALANCED
COMPONENT
3 4 5
TO USB
PORT
trigger
IR
out
out
RS-232
in
345
1
2 3 4 5 6
analog audio inputs
digital audio inputs
12
main outputs
~ ac mains
120W
TWO-CHANNEL
AMPLIFIER OR TWO
MONAURAL AMPLIFIERS
RIGHT
SPEAKER
LEFT
SPEAKER
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
13
QUICK SETUP AND LISTEN
N0 523 connections
main outputs
Designed and assembled in U.S.A.
Harman International Industries, Inc.
TURNTABLE
O
523
PREAMPLIFIER N
S/N
ANALOG SOURCE
ANALOG SOURCE
analog audio inputs
1 2
phono inputs
ground tfelthgir
SINGLE-ENDED
COMPONENT
BALANCED
COMPONENT
3 4 5
trigger
IR
out
out
RS-232
analog audio inputs
in
345
12
main outputs
~ ac mains
120W
TWO-CHANNEL
AMPLIFIER OR TWO
MONAURAL AMPLIFIERS
RIGHT
SPEAKER
14
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
LEFT
SPEAKER
SETUP MENU
SETUP MENU NAVIGATION
Pressing the Setup button displays the Setup menu on the
preamplifier’s front-panel display. When the Setup menu is
active…
• use the Input knob to scroll through options,
• use the Enter button to select and deselect options,
• use the Volume knob to adjust parameters, and
• to move back a level in the menu structure or exit the Setup
menu, press the Setup button repeatedly until the desired
menu is shown in the display.
INPUT SETUP
SETUP MENU
ENGLISH
Setup Menu
Input Setup
Volume Control
Power Management
Display
Advanced
Output
Input Setup
Input 1 (XLR1)
Input 2 (XLR2)
Input 3 (RCA1)
Input 4 (RCA2)
Input 5 (RCA3)
Input 6 (Phono1)
Input 7 (AES/EBU)
Input 8 (Coax1)
Input 9 (Coax2)
Input 10 (Opt1)
Input 11 (Opt2)
Input 12 (USB)
The Input Setup menu allows you to customize the following
parameters for the selected input:
The following settings are available for all inputs.
Name:
this option offers a choice of preset names for the
selected input (CD, SACD™, DVD, Blu-ray™, DAC, EQ, Input
[number], [Input type], [Input connector]. Additionally, the
following special functions are available for each input:
Unused: this option removes the selected input from the list
of available inputs. The input will be skipped when selecting
the active input.
Per-Input Settings
Name
Offset
SSP
Phono Type
Ph Gain
Ph Balance
Infrasonic Filt
R Load
C Load
Clari-Fi
DAC PCM Filter
DSD Filter USB input only
PLL Lock
6 dB Gain
Manual Entry: this option allows you to enter a custom name
for the selected input. Holding the Enter button longer than
two seconds starts Editing Mode. Use the Select knob to
select the character you want to change, use the Volume
control to choose from the list of available characters and
press the Enter button to confirm each character. After the
eighth character is entered or the Enter button has been held
longer than two seconds, the new name will be saved.
Offset:
the output level of audio devices can vary between brands
and models, making some devices sound louder or quieter
than others. The Offset adjustment allows you to precisely
Analog inputs only
Phono input only
Phono input only
Phono input only
Phono input only
Phono input only
Phono input only
Digital inputs only
Digital inputs only
Digital inputs only
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
15
SETUP MENU
compensate for that variance, allowing all associated devices in
your system to output at a similar volume level.
The setting offers a range of –12.0dB to +12.0dB, in 0.1dB steps.
Whenever an input is selected, the preamp applies the setting
of the Offset parameter to the volume level of the outputs.
SSP:
the SSP setting configures the selected input for complete
integration with a multichannel surround sound processor. See
the SSP Setup section of this manual for more information.
(Note: The SSP setting is only available for analog inputs.)
THE FOLLOWING SETTINGS ARE AVAILABLE FOR THE
DIGITAL INPUTS. (№ 526 ONLY)
PCM Filter
Fast
: this setting lets you set the filter characteristic:
: this filter has a steep roll-off characteristic that
may be better suited when listening to electric or
electronic music
Slow
: this filter has a gradual roll-off characteristic that
is well suited to most types of music
MPHAS: this is a minimum-phase filter that may be
better suited when listening to acoustic music
Although the above descriptions are offered as a guide,
feel free to set the PCM filter according to your own
tastes
Clari-Fi
: setting this option to ON activates HARMAN
Clari-Fi® music restoration technology for the selected
input. Clari-Fi analyzes compressed digital audio files
during playback and reconstructs what was lost in the
compression process. The Intensity control adjusts the
amount of reconstruction applied to the signal, and can
be applied according to your individual taste – there is no
“correct” amount.
PLL Lock
: this option selects between DAC DPLL Bandwidth
settings of Normal or Wide
The following settings are available for the Phono input.
Cartridge Type:
this setting enables selection of moving-magnet
(MM) or moving-coil (MC) cartridge.
Resistive Loading:
this option sets moving-coil cartridges’
resistive loading between 50 and 1000 ohms.
Capacitive Loading:
this option sets capacitive loading between
50 and 680 pF.
Infrasonic Filter:
this option sets the infrasonic “rumble” filter
on or off.
Gain:
this option selects High or Low gain for the Phono input.
Balance:
this option applies balance from -3dB to +3dB in 0.1
dB steps to the Phono input.
Gain:
setting this option to ON adds +6dB gain to the selected input.
16
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
SETUP MENU
Volume Control
Setup Menu
Setup Menu
Power Management
VOLUME CONTROL
Input Setup
Volume Control
Power Management
Display
Advanced
Output
Volume Control settings let you customize the performance of the
preamp‘s Volume and Mute functions.
Max Vol:
0.1dB increments between 40.0dB and 80.0dB. The factory default
maximum volume is 80.0dB.
Mute:
attenuation that occurs when the Mute button is engaged, in 0.1dB
increments between –10dB and –80.0dB. The factory default mute
attenuation is –40dB.
Turn On:
your preamp will default every time you turn it on.
CAUTION: setting the Turn-On parameter to Last can result in
louder-than-expected power-up volume if the preamp was set to a
high volume level setting when last powered down.
Taper:
control, from the following options:
Mode 1
volume will change. Rotating the knob slowly slows the rate the
volume changes, allowing you to make very precise adjustments
in the listening level. This is the factory default setting.
Mode 2
more gain change for a similar range of knob travel.
Mode 3
through the low volume range, and then decelerates in the higher
range, for precision adjustments. When decreasing the volume the
control works in the opposite fashion, changing quickly through
the high volume range and decelerating in the lower range.
Max
Mute
Turn On
Taper
this setting sets the maximum line output volume level in
this setting lets you set the amount of line output level
this setting lets you set a line output volume level to which
o 10.0dB – 60.0dB: choose a turn-on volume level in 0.1dB
increments between 10.0db and 60.0db. The factory
default setting is 40.0dB.
o Last: the volume level setting from the previous time the
unit was powered down is retained.
this setting lets you choose the desired taper for the volume
: the faster you rotate the volume knob the more quickly the
: Similar to Mode 1, with a “faster” response curve, with
: When increasing the volume the volume changes quickly
POWER MANAGEMENT AND DISPLAY
Input Setup
Volume Control
Power Management
Display
Advanced
Output
The Power Management and Display parameters let you
customize power-related functions.
Standby:
following options:
Auto Off:
function, which puts your preamp into the Standby mode after
20 minutes of inactivity (no audio signal, and no control input).
Display:
parameters:
this setting lets you set the Standby mode to one of the
Green
: this mode removes power from almost all of the
circuits, allowing the unit to be activated only via an IR control
signal, a 5V – 12V trigger voltage or a press of the Standby
button. This mode provides maximum power conservation
and is the factory-default Standby mode.
Power Save
circuits, but keeps the control circuitry powered and ready
to receive commands from either the front-panel controls
or the remote control. This mode provides moderate power
conservation.
Normal
outputs, but keeps all of the control and audio circuits
powered. This mode provides the least amount of power
conservation but allows the audio circuits to remain warmed
up to deliver optimal performance at all times.
Intensity
to High, Med, Low, or Off (which turns the display off entirely
until a control is operated). The factory default setting is High.
Timer
lets you choose how long the display remains lit after the
last time a control is operated. Choose from 10 seconds,
4 seconds, or 2 seconds. The factory default setting is 10
seconds.
: this mode removes power from the audio
: this mode shuts off the display and mutes audio
this setting lets you engage or disengage the Auto Off
this menu gives you access to the following display
: lets you set the brightness of your preamp’s display
(only applies when the display intensity is set to Off):
Standby
AutoOff
Display
Intensity
Timer
ENGLISH
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
17
SETUP MENU
Advanced
Setup Menu
ADVANCED
Input Setup
Volume Control
Power Management
Display
Advanced
Output
The Advanced section of the Setup menu gives you access
to a range of configuration and administrative settings and
functions.
Firmware:
related functions:
Version
firmware. (This setting is informational only, and does not
provide any adjustments.)
Update
from a flash drive inserted in the rear-panel USB Type
A port or from a connected computer over the Ethernet
connection. (If you press Enter when ENET is selected, the
preamp’s display shows “Start Download” to remind you to
connect via a browser and begin downloading the firmware.)
To update via a flash drive:
1. Select USB and press Enter.
2. The preamp will read the USB drive. The display will show
3. When the preamp finds a valid firmware file on the drive,
• If the preamp does not find a valid firmware file on the
Connect:
you made to your preamp: Ethernet, or RS232.
Config:
configuration settings.
Export
information to a thumb drive inserted in the rear-panel
USB Type A port. This data can then be used to identically
configure other preamplifiers, or serve as a backup so you
can easily reconfigure your preamp.
Firmware
Connect
Config
Network
Trigger1
Trigger2
Front IR
this menu gives you access to the following firmware-
: displays the version number of the currently loaded
: lets you update your preamp’s firmware, either
“Check updates…” while the drive is being read
the display will show “Updating…”
drive, the display will show “Not Available.”
this menu lets you select the type of control connection
this menu lets you import or export Setup menu
: press Enter to export all setup configuration
Import
: press Enter to import all setup configuration
information from a thumb drive inserted in the rear-panel
USB Type A port.
Lock
: engage the Lock to prevent accidental changing of
Setup menu parameters. The factory default setting is Off.
Restore
default condition.
Network:
related parameters:
Name
network name (the X’s represent the last three digits of the
unit’s unique MAC address). This setting is informational only
and does not provide any user adjustments.
DHCP
configuration) on or off. The factory default behavior is
On. When the mode is set to Off, you can specify static IP
and Subnet addresses for your preamp. Selecting Renew
(available only when DHCP is set to On) refreshes your DHCP
configuration, assigning a new IP address to your preamp.
This function is often useful when troubleshooting a network
connection.
Current IP
DHCP or manually) to your preamp.
Current subnet
(by DHCP or manually) to your preamp.
Current Gateway
assigned (by DHCP or manually) to your preamp.
Manual Entry
to enter a static IP, Subnet, and Gateway address. Holding
the Enter button longer than two seconds will start Editing
Mode. Use the Select knob to select the character you want
to change, use the Volume control to choose from the list of
available characters and press the Enter button to confirm
each character. After the last character is entered or Enter
button has been held longer than two seconds, the new
address will be saved.
Trigger:
is sent and received. Most components require this to be set
at “Normal,” but some products (such as some older Mark
Levinson components) require that it be set to Pulsed. There
are two triggers available. The menu options allow user to
disable trigger and set up the delay time.
Front IR:
on or off. If you have connected the unit’s rear-panel IR input
to an IR control device, set the Front IR receiver to Off to avoid
interference.
: lets you restore all parameters to their factory-
this menu offers access to the following network-
: No526XXX or No523XXX: Displays your preamp’s
: lets you toggle DHCP mode (network auto-
: shows the IP address currently assigned (by
: shows the subnet address currently assigned
: shows the gateway address currently
: this option (only when DHCP is off) allows you
this setting configures how the 12V trigger relay data
this menu allows you to turn the unit’s front IR receiver
18
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
OUTPUT
Output
Setup Menu
SETUP MENU
Input Setup
Volume Control
Power Management
Display
Advanced
Output
The Output section of the Setup menu lets you configure the
outputs.
Line Out:
outputs to Fixed, Variable or High Pass Filter:
Headphone:
for the Headphone output.
this menu lets you set the Balanced and Single-ended
Fixed
: use this setting when you have connected the Balanced
or Single-ended outputs to a recording device. The outputs
will remain at a fixed level regardless of the volume control
level.
Variable
Balanced or Single-ended outputs to a powered subwoofer
or to an external amplifier. The output level will vary with the
level of the volume control.
High Pass
octave, 4th-order Butterworth 80Hz high-pass filter on the
Balanced or Single-ended outputs. If you have connected a
powered subwoofer to one of the outputs and want to restrict
the low frequencies sent to your system’s main speakers, set
the High Pass filter to On for the output connected to your
speakers’ power amplifier(s). Note: the Headphone output is
always full-range and Variable.
: use this setting when you have connected the
: this menu allows you to activate a 24dB-per-
this menu lets you select Low or High Impedance
XLR Line Out
RCA Line Out
Headphone
ENGLISH
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
19
SSP SETUP
SSP SETUP
In the past, the differing number of channels in each component
made integration between two-channel and multichannel
components difficult. Sending multichannel processor output
signals to a stereo Preamplifier distorts calibrated processor output
levels. Multichannel processor volume controls adjust the relative
volume level of all channels in unison. However, stereo Preamplifier
volume controls adjust the relative volume level of just the front left
and right channels, leaving the center, surround, and subwoofer
channels unaffected.
To avoid these problems when the preamplifier is connected with an
associated surround sound processor, the SSP Mode allows selected
input sources to pass through the preamp without interference. When
SSP Mode is activated, the preamp’s volume control is deactivated
to prevent the preamp from distorting channel balance. As a result,
the processor controls the relative volume level of all channels while
maintaining its calibrated output levels.
To connect the preamp with a surround sound processor:
1. Make sure the preamplifier and all associated components are
powered off and disconnected from electrical outlets.
2. Connect the output connectors on the surround-sound source
component to the input connectors on the surround-sound
processor. For example, if the source component is a Blu-ray
disc player, connect it to the appropriate input connectors on the
surround sound processor.
3. Connect the front left and right output connectors on the processor
to the desired analog input connectors on the № 526 or № 523
preamplifier. For best performance, use balanced connections
whenever possible.
4. Connect the center, surround, and subwoofer output connectors
on the processor to the appropriate input connectors on the power
amplifier(s).
5. Connect the preamplifier’s outputs to the amplifier(s) connected
to the system’s left and right (main) speakers.
To activate SSP Mode for a selected input:
CAUTION: Before activating the SSP mode for any input, set
the associated surround sound processor volume control to a
reasonable level to prevent sending dangerous signal levels to the
associated loudspeakers.
1. Activate the Setup menu by pressing the Setup button
2. Select Input Setup, and press Enter
3. Select the input you wish to configure for SSP use, and press Enter
4. Select SSP, and press Enter
5. Set the SSP parameter to On
6. Press the Setup button four times to step backward through the
menu hierarchy and exit the Setup menu
20
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
SURROUNDSOUND
SOURCE DEVICE
N0 526 / N0 523 SSP SETUP
Analog OutputDigital Output
OpticalCoaxial RL
ENGLISH
SURROUNDSOUND
PROCESSOR
PREAMPLIFIER
LEFT & RIGHT
POWER AMPLIFIER
122
12
43
Front
Left
O
526
PREAMPLIFIER N
S/N
S-Video Inputs
312
312
312
3
Digital Audio Inputs
1
645
Analog Audio In 1Analog Audio In 2
RR
Center
Right
analog audio inputs
12
phono inputs
ground tfelthgir
Y/G
645
3
LL
Subwoofer 1 Subwoofer 2
Left
345
Composite Video Inputs Component Video Inputs
Microphone Inputs
Analog Audio Outputs
Right
main outputs
Designed and assembled in U.S.A.
Harman International Industries, Inc.
1
Pb/B Pr/R
12
HDMI OutputsHDMI Inputs
ASE/EBU Inputs
12
Right
IR
RS-232
Y/G
3
L
R
out
2
Pb/B Pr/R
Monitor
Out
Analog Audio Inputs
4
Left
trigger
out
Component Video Output
Y
Pb
Link
56
L
R
Surround
Right
in
345
1
2345 6
3
Y/G
Pr
IR Input
Left
analog audio inputs
digital audio inputs
Pb/B Pr/R
FL
FR SUB
12
Trigger Outputs
7.1 Channel Input
CTR SL
Right
Surround
Back
Y/G
RS-232
SR BR
Left
main outputs
4
Pb/B Pr/R
BL
~ ac mains
120W
AC Input
Ethernet
Remote Zone
Left
Right
To Right Speakers
To Left Speakers
CENTER & SURROUND
POWER AMPLIFIER
To Center &
Surround
Speakers
single ended
outputs
balanced
inputs
balanced
inputs
single ended
outputs
balanced
inputs
single ended
outputs
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
21
TROUBLESHOOTING
TROUBLESHOOTING
Incorrect operation is sometimes mistaken for malfunction. If problems occur, see this section for troubleshooting information. If
problems persist, contact your authorized Mark Levinson dealer.
NO POWER
Examine the power cord to ensure that it is connected to both the AC mains connector and a working, unswitched electrical outlet.
Make sure the preamp is powered on with the rear-panel Power switch. Examine the electrical circuit breaker to ensure that power is being
supplied to the electrical outlet to which the preamp is connected.
Make sure the preamp is not in standby. The front-panel standby LED illuminates fully and continually when the preamplifier is On. The LED flashes
slowly when the preamp is in Standby mode.
REMOTE CONTROL DOES NOT OPERATE
Eliminate obstructions between the remote control IR transmitter and the IR receiver on the front-panel display. Make sure the rear-panel IR input
connector is not being used.
Make sure the remote control is positioned within 17 feet (5m) of the front panel. If the chassis is placed inside a glass cabinet, tinted glass will
reduce the remote control range.
Make sure the remote control signal is being received at the IR receiver on the front-panel display at a reasonable angle.
Make sure the IR receiver on the front-panel display is not exposed to strong sunlight, halogen light, or fluorescent light. This can cause IR
reception to become unreliable.
Replace the remote control batteries.
NO SIGNAL AT THE OUTPUTS
Examine all audio cables to ensure a solid connection between the preamplifier and all associated components. Examine the speaker cables to
ensure a solid connection between the speakers and the amplifiers. Make sure that the connected speakers are operational. Make sure the volume
is set to an audible level.
Make sure the mute is deactivated. Make sure the Offset setting for the selected input is not reducing the volume to an inaudible level. Make sure
all associated components are connected to working electrical outlets and powered on. Make sure the source device connected to the preamp’s
selected input is producing an output signal.
MISSING INPUT
Make sure the Name parameter for the selected input has not been set to Unused in the Setup menu.
DIGITAL AUDIO DROPOUTS
Set PLL Lock to Wide
22
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
AUDIO HUM
TROUBLESHOOTING
Disconnect components one at a time to isolate the problem.
Once the problem is identified, make sure the problematic component is properly grounded and connected to the same electrical circuit as the
preamp.
VOLUME CAN’T BE SET TO MAXIMUM
You have the option of establishing a maximum volume level in the Setup menu. If this option is set, it can prevent the unit’s maximum volume level
of 80.0 from being reached. Refer to Volume Control / MaxVol for more information.
FRONTPANEL DISPLAY NOT WORKING
Verify that the Intensity parameter in the Setup menu is not set to Off.
NO NETWORK CONNECTIVITY
Verify that the network cables are properly connected between the router, switch or hub and the preamp.
Verify the age of the router, switch or hub. If the router, switch or hub is more than ten years old, there may be a communication issue with the
preamp. Power cycle the preamp and use a newer router, switch or hub between the network and the preamp.
IF ALL ELSE FAILS…
Power cycle the preamp with the rear-panel Power switch, waiting at least 10 seconds between powering the unit off and on.
Restore factory-default settings (See Advanced: Config / Restore).
ENGLISH
Contact your authorized Mark Levinson dealer.
Contact Mark Levinson Customer Service at 888-691-4171 or marklevinson.com.
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
23
SPECIFICATIONS
MARK LEVINSON N0 526 AND N0 523 SPECIFICATIONS
LINE STAGE
Gain
• Normal gain setting
• High gain setting
• Fixed mode, normal gain setting
• Fixed mode, high gain setting
Frequency response
• 20Hz to 20kHz
• 0.4Hz to 370kHz
Total harmonic distortion plus noise (THD+N)
• at 1kHz (2V
• at 20kHz (2V
single-ended or 4V
RMS
single-ended or 4V
RMS
balanced output)
RMS
RMS
Signal-to-noise ratio
• 20Hz to 20kHz, wideband, unweighted
• A-weighted
• Reference to 2V
4V
balanced output, max volume
RMS
single-ended or
RMS
Crosstalk
• at 1kHz
• at 20kHz
Channel separation
High-pass filter
Volume control
SINGLEENDED (RCA) INPUTS
balanced output)
13.5dB balanced; 7.5dB single-ended
19.5dB balanced; 13.5dB single-ended
3.0dB balanced; –3.0dB single-ended
9.0dB balanced; 3.0dB single-ended
±0.02dB
+0.1 / -3dB
<0.003%
<0.005%
>97dB
>100dB
>115dB @ 1kHz
>105dB @ 20kHz (spot noise)
<-107dB
<-82dB
below noise floor (>115dB @ 1kHz)
defeatable 80Hz, 4
th
order (24dB/octave) Butterworth
balanced, current mode, discrete 15-bit R-2R ladder
• Input impedance >45kΩ
• Maximum input level normal gain setting: >10V
BALANCED (XLR) INPUTS
• Input impedance >45kΩ
• Maximum input level normal gain setting: >15V
SINGLEENDED (RCA) OUTPUTS
• Output impedance <80Ω
• Maximum output level >11V
RMS
BALANCED (XLR) OUTPUTS
• Output impedance <160Ω
• Maximum output level >22V
RMS
, high gain setting: >7V
RMS
, high gain setting: >7.5V
RMS
RMS
RMS
24
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
HEADPHONE OUTPUT
• Output impedance
• Maximum output, low impedance setting
30Ω (0.3W), 20Hz to 20kHz, <0.1% THD
300Ω, 20Hz to 20kHz, <0.1% THD
• Maximum output, high impedance setting
300Ω, 20Hz to 20kHz, <0.1% THD
• Total harmonic distortion plus noise (THD+N)
20Hz to 20kHz, 2V
20Hz to 20kHz, 2V
at 30Ω
RMS
at 300Ω
RMS
PHONO STAGE
• RIAA frequency response
• Infrasonic filter
Moving Magnet mode
• Input resistance
• Input capacitance
• Gain
• Total harmonic distortion plus noise
• Signal-to-noise ratio (Referred to 2V
• Maximum input level
Moving Coil mode
• Input resistance
• Input capacitance
• Gain
• Total harmonic distortion plus noise
• Signal-to-noise ratio (Referred to 2V
• Maximum input level
output)
RMS
output)
RMS
selectable; <3Ω or 75Ω
>3V
RMS
>9V
RMS
>7V
RMS
<0.03%
<0.01%
20Hz to 20kHz, ±0.3dB
defeatable, 15Hz, 2nd order (12dB/octave)
47kΩ
selectable; 50, 100, 150, 200, or 680pF
40dB @ 1kHz
<0.03%, 20Hz to 20kHz, 2V
RMS
output
>97dB (20Hz to 20kHz, wideband, unweighted)
>102dB (A-weighted)
>110dB @ 20Hz to 20kHz (spot noise)
>95mV @ 1kHz; >285mV @ 20kHz
selectable; 20, 33, 50, 66, 100, 200, 330, 500, 1000, or 47kΩ
50pF
selectable; 50, 60, or 70dB @ 1kHz
50dB gain setting: <0.02%, 20Hz to 20kHz, 2V
60dB gain setting: <0.02%, 20Hz to 20kHz, 2V
70dB gain setting: <0.04%, 20Hz to 20kHz, 2V
RMS
RMS
RMS
output
output
output
50dB gain setting: >87dB (20Hz to 20kHz, wideband, unweighted)
50dB gain setting: >94dB (A-weighted)
50dB gain setting: >100dB at 20Hz to 20kHz (spot noise)
60dB gain setting: >77dB (20Hz to 20kHz, wideband, unweighted)
60dB gain setting: >84dB (A-weighted)
60dB gain setting: >90dB at 20Hz to 20kHz (spot noise)
70dB gain setting: >68dB (20Hz to 20kHz, wideband, unweighted)
70dB gain setting: >74dB (A-weighted)
70dB gain setting: >80dB at 20Hz to 20kHz (spot noise)
50dB gain setting: >30mV @ 1kHz; >105mV @ 20kHz
60dB gain setting: >9.5mV @ 1kHz; >90mV @ 20kHz
70dB gain setting: >3.2mV @ 1kHz; >30mV @ 20kHz
ENGLISH
DIGITALTOANALOG CONVERTER (№ 526 ONLY)
• Output voltage
• Frequency response
• Total harmonic distortion
• Signal-to-noise ratio (Referred to 3.7V
• Sample rates/bit depth
• PCM
• DSD
/ 0dBFS output)
RMS
3.7V
@ full scale (0dBFS)
RMS
20Hz to 20kHz, +0 / –0.2dB
<0.0001% @ 1kHz, full scale (0dBFS)
<0.0003% @ 20kHz, full scale (0dBFS)
>117dB (20Hz to 20 kHz, wideband, unweighted)
>120dB (A-weighted)
32, 44.1, 48, 88.2, 96, 176.4, or 192kHz; up to 32 bits
Native or DoP (DSD over PCM), single- and double-speed (2.8 and
5.6MHz)
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
25
SECTION / SECTION
GENERAL
• Analog audio connectors
Line inputs
Phono input
Outputs
• Digital audio input connectors (№ 526 only)
Balanced
Coaxial
Optical
USB asynchronous
• Control connectors
RS-232
Infrared (IR)
DC triggers
Ethernet
USB
• Mains voltage
• Power consumption
Standby, Green mode
Standby, Power Save mode
Standby, Normal mode
Power on, idle
Power on, idle, headphones connected
• Dimensions
Unit
With Packaging
3 pairs single-ended (RCA), 2 pairs balanced (XLR)
1 pair single-ended phono inputs (RCA), 1 phono ground binding post
1 pair single-ended line (RCA), 1 pair balanced line (XLR), 1 TS ¼”
(6.3mm) headphone
1 AES/EBU (XLR)
2 S/PDIF (RCA)
2 Toslink
1 USB Type B)
1 RJ-12
1 ⅛” (3.5mm) phone jack
2 programmable 12V outputs (⅛” / 3.5mm phone jack), 100mA maximum
1 programmable 12V input (⅛” / 3.5mm phone jack)
1 RJ-45
1 USB Type A, 1 Micro USB
100VAC, 115VAC, or 230VAC, factory set
0.4W
5W
72W (№ 526); 67W (№ 523)
75W (№ 526); 70W (№ 523)
88W (№ 526); 83W (№ 523)
Height 3.75” (95mm)
Width: 17.25”/438mm
Depth: 18” (457mm)
Weight: 41 lbs. (18.6kg)
Height: 26” (660mm)
Width: 26” (660mm)
Depth: 17” (432mm)
Weight: 60 lbs. (27.2kg)
HARMAN International Industries, Incorporated
8500 Balboa Boulevard
Northridge, CA 91329 USA
© 2016 HARMAN International Industries, Incorporated. All rights reserved.
Mark Levinson and Clari-Fi are registered trademarks of HARMAN International Industries,
Incorporated. Blu-ray is a trademark of the Blu-ray Disc Association. SACD (Super Audio CD) is
a trademark of Sony Corporation. Other company and product names may be trademarks of the
respective companies with which they are associated.
This document should not be construed as a commitment on the part of HARMAN International
Industries, Incorporated. The information it contains, as well as the features, specifications and
appearance of the product, is subject to change without notice. HARMAN International Industries,
Incorporated, assumes no responsibility for errors that may appear within this document.
For customer service and product shipment information, refer to our website: marklevinson.com
Part No. 070-90027 Rev: 1.0
26
N0 526 / N0 523 DUAL-MONAURAL PREAMPLIFIER / OWNER’S MANUAL
No523: MSIP-REM-HOE-Model523
No526: MSIP-REM-HOE-Model526
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