Mark Levinson 532 User Manual
Owner’s Manual
No532
Power Amplifier
FCC Notice
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Caution!
Changes or modifications not expressly approved by the party responsible for compliance could
void the user’s authority to operate the equipment.
Canada
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la Classe B est conforme à la norme NMB-003 du Canada.
Mark Levinson is a registered trademark of Harman International Industries,
Incorporated.
Window, Microsoft and Internet Explorer are registered trademarks of Microsoft
Corporation in the United States and/or other countries.
Other company and product names may be trademarks of the respective
companies with which they are associated.
For customer service and product
©2008 Harman International Industries, Incorporated. All rights reserved.
shipment information, refer to the
website: www.marklevinson.com
This document should not be construed as a commitment on the part of Harman
International Industries, Incorporated. The information it contains is subject to
change without notice. Harman International Industries, Incorporated, assumes
no responsibility for errors that may appear within this document.
Part No. 070-18979| Rev 1 |06/08
Important Safety Instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus
that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has
two blades with one wider than the other. A grounding-type plug has two blades and a third
grounding prong. The wide blade or third prong is provided for your safety. If the provided plug
does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience
receptacles and the point where it exits from the apparatus.
11. Only use attachments and accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket or table specified by the manufacturer or
sold with the apparatus. When a cart is used, use caution when moving the cart/
apparatus combination to avoid injury or tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, such as when the power-supply cord or plug is damaged; liquid has
been spilled or objects have fallen into the apparatus; or the apparatus has been exposed to rain
or moisture, does not operate normally or has been dropped.
15. The MAINS cord is intended to be the safety disconnect device for this apparatus and shall
remain readily operable at all times.
16. Ventilation should not be impeded by covering the ventilation openings with items such as
newspapers, tablecloths, curtains and so on.
17. No naked flame sources, such as candles, should be placed on the apparatus.
18. Terminals marked with this symbol may be considered HAZARDOUS LIVE, and the
external wiring connected to these terminals requires installation by an INSTRUCTED
PERSON or the use of ready-made leads or cords.
19. This product must be terminated with a three-conductor AC mains power cord that includes an
earth ground connection. To prevent shock hazard, all three connections must ALWAYS be used.
iii
Warning!
To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. The
apparatus shall not be exposed to dripping or splashing. No objects filled with liquids, such as
vases, shall be placed on the apparatus.
Mark Levinson
Safety Terms & Symbols
These terms may appear in this manual:
Warning! Calls attention to a procedure, practice, condition or the like that,
if not correctly performed or adhered to, could result in personal
injury or death.
Caution! Calls attention to a procedure, practice, condition or the like that,
if not correctly performed or adhered to, could result in damage
or destruction to part or all of the component.
Note Calls attention to information that is essential to highlight.
These symbols may appear on the product:
Appears on the component to indicate the presence of
noninsulated, dangerous voltage inside the enclosure – voltage that
may be sufficient to constitute a risk of shock.
iv
Appears on the component to indicate important operation and
maintenance instructions included in the accompanying
documentation.
Appears on the component to indicate compliance with the EMC
(Electromagnetic Compatibility) and LVD (Low-Voltage Directive)
standards of the European community.
Documentation Conventions
This document contains general safety and operation instructions
for the N
read this document before attempting to use this product. Please
pay particular attention to safety instructions.
o
532 Dual Monaural Power Amplifier. It is important to
This manual is not intended as a general reference guide for audio or
home theater systems. If you’re uncertain how to set up or maintain your
system, seek the advice of a professional installer or ask your dealer for a
recommendation.
Nº532 Power Amplifier
Table of Contents
Introduction ............................................................................ 2
Product Description ...................................................................2
What’s in the Box .......................................................................3
Product Registration ...................................................................4
Installation Considerations ...................................................... 4
Unpacking .................................................................................4
Placement and Ventilation .........................................................4
Power Requirements ............................................................... 5
Operating States ........................................................................6
Front Panel ............................................................................. 7
Rear Panel ............................................................................... 8
Network Setup ...................................................................... 11
Material Requirements .............................................................12
Computer Requirements ..........................................................12
Connecting the Cables ............................................................. 12
Internal Web Page ...................................................................13
Network Setup Parameters ....................................................... 14
Connecting With DHCP (Recommended) ................................. 14
Setting Up the Computer .........................................................15
Connecting With Static IP Addressing .......................................17
Direct Connection ....................................................................19
ML Net .................................................................................. 20
Masters and Slaves ...................................................................20
Connecting the Devices ...........................................................20
Discovering Slaves ...................................................................21
Status Reporting ......................................................................21
Fault Reporting ........................................................................21
ML Net and Link2 ....................................................................22
Link2 ..................................................................................... 22
Troubleshooting .................................................................... 23
Fault Protection ..................................................................... 25
ML Net Fault Conditions ........................................................ 25
Restoring Factory Defaults ..................................................... 26
Care & Maintenance .............................................................. 26
Specifications ........................................................................ 27
Declaration of Conformity ..................................................... 28
1
Mark Levinson
Introduction
Thank you for purchasing the Nº532 Dual Monaural Power
Amplifier. True to Mark Levinson® tradition, the audio excellence
and performance levels of the Nº532 are unsurpassed in today’s
marketplace.
Product Description
2
The Nº532 Dual Monaural Power Amplifier redefines the concept of
outstanding performance. Drawing together all of the best features
of past Mark Levinson amplifiers to create a new, streamlined design
with extensive isolation of signal path circuitry, exceptionally low
impedance levels from the AC supply to the loudspeaker outputs
and very minimal signal degradation, the final result is impressive
even for the Mark Levinson high standard of excellence.
The first non-reference Mark Levinson amplifier to be fully
differential, the Nº532 provides both RCA and XLR connectors that
accept and deliver a balanced signal directly to the input stage of
the amplifier, with no additional circuitry. Each phase of the
differential input has identical electrical properties. The input and
voltage gain stages are tightly matched to maximize the rejection of
common mode signals. Such noise is rejected at the input stage,
preventing the amplification of introduced noise through the entire
amplifier signal path. In addition, since the amplifier is differential
for both input and output, the input stage handles the balanced
signals in their “native” format, ensuring that no noise is introduced through unnecessary signal conversions.
The Nº532 has two independent audio channels, isolated from each
other and from the control and power circuitry. This isolated
design results in two “piers”, each containing identical circuitry for
a single audio channel. The control and power circuitry resides in
the center of the amplifier, between the piers and thus isolated from
each audio channel. This unusual design provides a number of
advantages – additional heatsink capacity for thermal requirements,
virtually ideal balanced output characteristics, and the ability to
isolate potentially noisy power and control circuits from the signal
path of the audio channels.
The extremely low-noise toroidal power supply features an
interwinding screen between the transformer coils, filtering
mains-born noise from the secondary power supply. A separate,
dedicated power supply for the voltage gain stages provides double
isolation between the main audio supply and the higher current
that powers the rest of the amplifier, ensuring minimal noise
introduction. Physically, the power supplies are placed very close
together for the greatest benefit from magnetic field cancellation,
isolated, and placed as far away from the signal inputs as possible to
reduce noise introduction from high-current levels.
Nº532 Power Amplifier
Special care was taken in the design and placement of the voltage
regulator circuitry. Using multiple stages, two types of regulators,
and custom-tailored to the audio circuitry for which they provide
power, these discrete, low-noise and wide bandwidth circuits are in
close proximity to the audio signal path that they power, but placed
on a separate circuit board to minimize interaction with the audio
signals and prevent the corruption of low-level signals.
The signal path is electrically identical for both audio channels and
contains no relays, capacitors, or inductors to minimize forms of
nonlinearity and maintain very low output impedance levels. The
compact design of the circuitry allows the signal path to be tighter
and smaller, reducing parasitic capacitances and minimizing
propagation delay and phase shift. The end result is a faster, wider
bandwidth and cleaner output signal with very low impedance level
and minimal signal degradation. Lastly, the audio signal output
path contains 24 output devices per channel – providing an
impressive power capability while minimizing crossover distortion.
The Nº532 also provides support for external controls through a
network-capable Ethernet port for use with ML Net and external
protocol controllers through a computer or network, a Mark
Levinson Link2 control port, and standard trigger controls.
What’s in the Box
Note Do NOT discard the nylon lifting strap after unpacking the Nº532
Embracing new technology with the same level of enduring
excellence, the Nº532 dual monaural power amplifier is the
best-performing power amplifier designed by Mark Levinson. Truly
impressive output capabilities combined with the high power
efficiency of all Mark Levinson amplifiers make the Nº532 a
remarkably capable amplifier, sure to impress even the most
demanding of audio enthusiasts.
The Nº532 dual monaural power amplifier includes:
Item Quantity
Nº532 Dual Monaural Power Amplifier 1
Nº532 owner’s manual (this document) 1
Nylon lifting strap 1
Heavy white gloves 2 pairs
Cable with 3.5mm mini-plugs (for use with trigger) 1
Detachable AC power cord*
*varies by destination country
power amplifier. This strap should be used whenever the amplifier
needs to be lifted or moved.
1
3
Mark Levinson
Product Registration
Unpacking DO save all packing materials for possible future shipping needs.
Register your Nº532 online at www.marklevinson.com within 15
days of purchase. Retain the original, dated sales receipt as proof of
warranty coverage.
Installation Considerations
The Nº532 dual monaural power amplifier requires special care
during installation to ensure optimal performance. Pay particular
attention to instructions included in this section and to precautions
included throughout this owner’s manual.
DO inspect the Nº532 for signs of damage during shipment. If
damage is discovered, contact your authorized Mark Levinson
dealer for assistance in making appropriate claims.
DO locate and remove the accessory bag from the carton. Make
sure it contains all of the items listed in the “What’s in the Box”
table on the previous page. If not, contact your authorized Mark
Levinson dealer.
4
Caution! DO NOT attempt to lift or move the N
without adequate assistance. The shipping weight of the N
Placement and
Ventilation
exceeds what a single person should lift alone. To avoid injury or
damage to the N
move the amplifier.
Two pairs of knit white gloves with special gripping surfaces on
the palms and fingers are included with the N
gloves when lifting or moving the amplifier.
DO install the Nº532 power amplifier on its own shelf for proper
ventilation.
o
532, at least two people are required to lift or
o
532 power amplifier
o
532 . Wear these
o
532
DO install the Nº532 chassis on a solid, flat, level surface.
DO install the Nº532 power amplifier close to associated
components to keep interconnecting cables as short as possible.
DO select a dry, well-ventilated location out of direct sunlight.
DO allow at least 3 to 4 inches (8 to 10cm) of clearance above and
on each side of the amplifier for proper heat dissipation.
Nº532 Power Amplifier
DO allow at least 6 inches (15cm) of clearance behind the amplifier
so that the power cord and cables have space to bend without
becoming crimped or strained.
DO NOT place the Nº532 on a thick rug or carpet or cover the
amplifier with a cloth, as this might prevent proper cooling.
DO NOT obstruct the ventilation holes on the top and bottom of
the Nº532 or reduce airflow through the Nº532.
DO NOT place the Nº532 near low-level components. The power
amplifier is capable of producing large output currents and hence
significant magnetic fields, which can induce noise in sensitive
components.
DO NOT expose the Nº532 power amplifier to high temperatures,
humidity, steam, smoke, dampness, or excessive dust. Avoid
installing near radiators and other heat-producing appliances.
Warning! MAKE SURE all components 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 can
result in personal injuries and/or product damage.
Power Requirements
The Nº532 dual monaural power amplifier is configured at the
factory for 100, 120, or 230 VAC power operation at 50Hz or 60Hz.
Before operating the Nº532, ensure that the power label on the rear
panel near the AC input connector indicates the correct operating
voltage.
Caution! DO NOT attempt to adjust the operating voltage. Consult a Mark
Levinson dealer if the operating voltage is incorrect or must be
changed for relocation purposes.
Different operating voltages may require the use of different
power cords and/or attachment plugs. Contact a Mark Levinson
dealer for additional assistance.
5
The Nº532 dual monaural power amplifier is capable of passing
remarkable sound at exceptional power levels. Depending on
listening habits, loudspeaker demands, and the number of power
amplifiers present in the system, it is possibe that the electrical
service may become the limiting performance factor of your system.
Mark Levinson
If this case occurs, consider installing a dedicated AC circuit for the
system. Contact a licensed electrician for assistance. If more than
one AC circuit is providing power to the system, contact a licensed
electrician to ensure that all components are operating with the
same solid, low-impedance ground reference.
Caution! Building regulations and electrical codes differ from location to
location, making it impossible to anticipate the requirements of
amplifier high-current AC circuits, such as the N
monaural power amplifier is capable of using. Contact a local,
licensed electrician for further information.
o
532 dual
Operating States
6
Caution! BEFORE moving the N
The Nº532 dual monaural power amplifier is designed for
continuous operation and has four operating states:
• Off – AC power is disconnected using the front-panel Power
switch or by removing the power cord from the rear panel.
• Power Save Mode – this is an energy-saving mode. AC power
is only connected to the low-voltage power supply, so all
nonaudio functions, such as ML Net and Link2, are active.
• Standby – AC power is fully connected to the amplifier but the
outputs are muted.
• On – the Nº532 is fully powered and all outputs are active.
The Nº532 should be unplugged during lightning storms and
extended periods of nonuse as a precaution against potentially
damaging power surges through the line.
o
532 power amplifier, make sure it is
powered off with the Power button. Then make sure the power
cord is disconnected from the rear panel connector and the
electrical outlet.
Nº532 Power Amplifier
Status LED
Standby
Button
Power
Button
Front Panel
The front panel contains one LED and two buttons – Standby and
Power – as shown.
Power Button
Controls the AC power to the input of the amplifier when a power
cord is connected from the electrical outlet to the AC input
connector on the Nº532 rear panel.
When the Power button is pressed to turn on the Nº532, the
amplifier enters either the Standby mode or the Power Save mode,
depending upon the state of the rear panel Power Save Mode
switch.
Standby Button
Places the Nº532 into Standby or Power Save mode, depending
upon the state of the rear panel Power Save Mode switch. Pressing
the button while the amplifier is in Standby or Power Save mode
turns on the amplifier.
Standby mode provides full AC power to the amplifier but mutes
the outputs. Power Save mode powers only the low-voltage power
supply, control circuits, and communication circuits so that only
the nonaudio functionality is available.
Note When the amplifier enters or exits Power Save mode, there’s an
extended initialization period before the amplifier is fully powered on.
During this period, additional Standby button presses are ignored.
7
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