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52 RefeReNce PReamPlifieR

  

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Quick-Start Guide

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52  Control  connector:  This  multi-pin  connector  shares 

control  information  between  the  Controller  chassis  and 
the Preamplifier chassis. Use the supplied multi-pin N

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52 

control  cable  to  connect  the  Preamplifier’s  N

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52  Control 

connector to the N

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52 Control connector on the Controller.

DC Power connectors: These connectors receive DC power 
supplied  by  the  Controller  chassis.  Use  the  two  supplied 
multi-pin  DC  power  cables  to  connect  the  Preamplifier’s 
left-channel DC Power connector to the Controller’s left-
channel DC Power connector, and the Preamplifier’s right-
channel  DC  Power  connector  to  the  Controller’s  right-
channel DC Power connector.

Main  output  connectors:  These  connectors  provide 
left-channel  and  right-channel  output  to  associated 
components. Two balanced (male XLR) and two unbalanced 
(RCA) stereo output connectors are available.

For  best  performance,  use  balanced  connections 
whenever  possible.  Refer  to  the  illustration  on  page  8 
to  ensure  that  the  N

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52  balanced  output  connector  pin 

assignments correspond to the balanced input connector 
pin  assignments  of  the  associated  component  you  want 
to  connect.  If  not,  wire  the  cable  so  that  the  appropriate 
N

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52  output  pin  connects  to  the  appropriate  associated 

component input pin.

Auxiliary  output  connectors:  These  connectors  provide  a 
second left-channel and right-channel output that can be 
used to send audio to a powered subwoofer, to a second 
listening  zone  or  to  recording  components  such  as  CD 
recorders or tape decks. One stereo set of balanced (male 
XLR) output connectors and one stereo set of unbalanced 
(RCA) output connectors are available.

The front panel Aux button activates the Aux mode, allowing 
you  to  use  the  front-panel  controls  to  determine  which 
input is sent to the Auxiliary outputs. Settings you make in 
the Input Setup menu determine if the selected input will 
appear  at  the  XLR  Auxiliary  output  connectors,  the  RCA 
Auxiliary  output  connectors,  both  sets  of  connectors  or 
if it will not be sent to the Auxiliary outputs at all, even if 
selected in the Aux mode. (For information about setting 
these parameters see the 

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52 User Guide.) The Aux LED 

lights when Aux mode is activated. See 

Aux button and LED 

on page 5 for additional information.

Note:

  The  following  Auxiliary  output  conditions  will 

apply  if  you  use  the  Aux  mode  to  set  the  Auxiliary 
output  signal  to  anything  other  than  “Off”  or  “Main 
Var[iable]:”

input setup  

menu aux  

setting for 

selected input

rca auxiliary 

outputs

Xlr auxiliary 

outputs

Both

Active (0dB gain)

Active (+6dB gain)

RCA only

Active (0dB gain)

Muted

XLR Only

Muted

Active (0dB gain)

Off

Muted

Muted

See the 

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52 User Guide for more information.

For best performance, use balanced connections whenever 
possible.  Refer  to  the  illustration  on  page  8  and  to  the 
documentation  for  the  connected  component  to  ensure 
that  the  balanced  input  connector  pin  assignments 
correspond  to  the  N

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52’s  Auxiliary  output  balanced 

connector  pin  assignments.  If  not,  wire  the  cable  so  that 
the  appropriate  input  pin  connects  to  the  appropriate 
output pin.

Phono  input  connectors:  These  unbalanced  (RCA)  stereo 
input  connectors  accept  input  signals  from  most  phono 
cartridges.  Two  gain  settings,  multiple  resistive  load  and 
multiple  capacitive  load  settings  are  available  for  the 
Phono inputs in the Setup menu, allowing the connection of 
moving-coil, moving-magnet, high-output, and low-output 
designs.  For  information  about  setting  the  Phono  Input 
parameters see the 

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52 User Guide.

Phono  Ground  connector:  This  post  provides  an  earth-
reference  ground  connection  for  the  connected  phono 
cartridge.  Connecting  the  phono  cartridge  grounding 
wire  to  the  phono  ground  connector  grounds  the  phono 
cartridge  to  the  preamplifier  chassis,  which  sometimes 
reduces  audible  hum  and  other  noise  that  results 
from  multiple  grounding  paths.  Otherwise,  the  ground 
connection  between  the  associated  phono  cartridge  and 
the preamplifier chassis is isolated.

Note:

  Listen  to  the  connected  phono  cartridge  both 

with and without the phono ground connection. Select 
whichever results in the best performance.

GettinG StaRted

Summary of Contents for #52

Page 1: ...Reference Preamplifier Quick Start Guide N0 52 ...

Page 2: ......

Page 3: ...ormation you will need to unpack and place your N0 52 connect it to the rest of your audio system turn it on and have a first listen Before you attempt more extensive use of this sophisticated preamplifier you must read the full N0 52 User Guide which is contained in the supplied USB memory stick The User Guide contains information about features operations adjustments alternate connections and ne...

Page 4: ...ster online at www marklevinson com or complete the included product registration card Retain your original dated sales receipt as proof of warranty coverage Placement and Ventilation Install the Controller and the Preamplifier each on its own shelf to ensure proper ventilation Ensure that you install the Controller and Preamplifier on solid flat and level surfaces Install the Preamplifier chassis...

Page 5: ... Controller s rear panel Standby The N0 52 Standby mode has three settings that can be selected via the Setup menu Green Power Save and Normal Green This mode removes power from almost all of the N0 52 s 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 ...

Page 6: ...in the Normal Standby mode Preamplifier Logo The Mark Levinson logo lights when the N0 52 is On and turns off when the N0 52 is in Standby or is Off Note For complete information about the functions of the front panel controls and their settings parameters see the N0 52 User Guide Preamplifier Logo N0 52 preamplifier Preamplifier LED N0 52 Controller Standby Button and LED Volume Knob Mute Button ...

Page 7: ...High Medium Low and Off Balance button and LED Press this button to set the left to right channel balance of the Main output connectors The Balance LED lights when the balance function is active Note When the balance function is inactive the Balance LED remains lit if the left to right channel balance of the Main output connectors is offset Mute button and LED Press this button to mute and unmute ...

Page 8: ...Output Input ac mains 65W RS 232 IR Input Ethernet USB N0 52 Controller Right Channel DC Power Connector USB Port Ethernet Port Trigger Input Connector Trigger Output Connector Left Channel DC Power Connector AC Mains Connector Power Switch N0 52 Control Connector IR Input Connector RS 232 Port ...

Page 9: ...ector can be used to activate other components in the audio system and listening room such as amplifiers lights and window shades A 12V DC signal is output whenever the N0 52 is on Trigger input connector This 3 5mm tip sleeve connector can be connected to the trigger output of another system component or control system that supplies a trigger voltage Whenever the N0 52 detects a voltage between 5...

Page 10: ...2 Signal non inverting Pin 3 Signal inverting Connector ground lug Chassis ground Balanced Input Connector female XLR Pin 3 Pin 3 Pin 1 Pin 1 Pin 2 Pin 2 Balanced Output Connector male XLR Unbalanced input connectors These connectors accept left channel and right channel unbalanced input signals from source components without balanced output connectors Four unbalanced RCA stereo connectors numbere...

Page 11: ...iliary output connectors both sets of connectors or if it will not be sent to the Auxiliary outputs at all even if selected in the Aux mode For information about setting these parameters see the N0 52 User Guide The Aux LED lights when Aux mode is activated See Aux button and LED on page 5 for additional information Note The following Auxiliary output conditions will apply if you use the Aux mode ...

Page 12: ...r iable in the Aux mode The volume changes in 1 0dB increments up to 23 0dB and in 0 1dB increments above 23 0dB The minimum volume level is OFF the maximum volume level is determined in the Setup menu Whenever you select an input the N0 52 applies the volume offset selected for it in the Setup menu to the Main output volume level and to the Aux output volume level Polarity button This button cont...

Page 13: ...olarity Remove Screws and Cover Insert 2 x AAA Batteries Replace Cover and Screws Using the Remote Control When using the remote control aim it toward the N0 52 Controller chassis 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 rem...

Page 14: ...les connect the Controller s left channel DC Power connector to the Preamplifier s left channel DC Power connector Connect the right channel DC Power connectors using the other supplied DC power cable 2 Using the supplied N0 52 control cable connect the Controller s N0 52 Control connector to the Preamplifier s N0 52 Control connector N0 52 preamplifier N0 52 Controller Right Channel DC Power Cabl...

Page 15: ... 52 Unbalanced input connectors numbered 4 5 6 or 7 if the source component does not offer balanced output connectors Use the N0 52 Phono input connectors to connect to a turntable phono cartridge Quick Setup and Listen N0 52 preamplifier Phono Source Device Line Level Source Device Balanced Audio Cable not supplied Use one or the other Use one or the other Balanced Audio Cable not supplied Unbala...

Page 16: ...nced input connectors Use the N0 52 unbalanced Main output connectors if the associated power amplifier does not offer balanced input connectors Quick Setup and Listen outputs inputs single ended balanced outputs inputs single ended balanced N0 52 preamplifier Power amplifier Balanced Audio Cable not supplied Use one or the other Use one or the other Balanced Audio Cable not supplied Unbalanced Au...

Page 17: ... component The N0 52 s front panel display indicates the name and volume level of the selected input Factory default input names correspond to their assigned stereo input connector number For example Input 1 is assigned to the input connectors numbered 1 Input 2 is assigned to the input connectors numbered 2 and so on 8 Make sure the N0 52 s volume is set to a reasonable level Then begin playing t...

Page 18: ...fset 0 0dB SSP Off Note SSP is not available for the Phono input Aux Both The following additional setting defaults apply only to the Phono input Mono Mode Off Phono Gain 40dB Phono Balance 0 0dB 20Hz High Pass Filter Off Resistive Load 47k ohms Capacitive Load None Volume Control Maximum Volume 80 0dB Muting Level 40 0dB Turn On Volume Level 40 0dB Volume Taper Mode 1 Power Management Standby Mod...

Page 19: ...stive Capacitive 3 3Ω 5 0Ω 7 7Ω 10Ω 33Ω 50Ω 77Ω 100Ω 330Ω 47kΩ user selectable 50pF 100pF 150pF 200pF 250pF 300pF 350pF 0 01µF user selectable Output Impedance 20 ohms balanced XLR connectors 10 ohms unbalanced RCA connectors Maximum Main Output 16V balanced XLR connectors 8V unbalanced RCA connectors THD N 0 001 balanced line level 0 02 phono Crosstalk 120dB any input to any output input untermin...

Page 20: ...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 cust...

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