Page 1
2 TABLE OF CONTENTS
3 Introduction
4 Safety Information
4 Unpacking and Installation
5 Front-Panel Controls and Indicators
6 Rear-Panel Connections
8 Installation and Configuration
8 Power Control Connections
8 Manual Operation
8 Remote Turn-On Using Music Sense
8 Keypad Control
9 Channel Configurations, Audio
Connections & Speaker Connections
9 One Input/Four Outputs
9 One Input/Three Outputs
9 One Input/Two Outputs
10 Two Inputs/Four Outputs
10 Two Inputs/Three Outputs
10 Two Inputs/Two Outputs
10 Note for Audio Connections
11 Speaker Wire Connections
12 System Connections
12 Parallel Output Connection
12 Infrared Control Connections
12 Keypad Connections
12 AC Power Connection
13 Operation
13 Volume Control &
Output Level Adjustment
13 Turn-On Volume Level Limits
14 Service Information
14 Fuse Replacement
14 Troubleshooting Guide
15 Technical Specifications
PA 4000 Bridgeable Multichannel/Multipurpose Amplifier
Typographical Conventions
In order to help you use this manual with the front-panel controls and rear-panel connections,
certain conventions have been used.
EXAMPLE Ð (bold type) indicates a specific front-panel button or rear-panel connection jack
1 Ð (number in a square) indicates a specific front-panel control or indicator
Á Ð (number in a circle) indicates a rear-panel connection
Page 2
3 INTRODUCTION
Introduction
Congratulations! As the owner of a PA 4000
Power Amplifier, you have at your command a
unique product. The PA 4000 has been carefully
designed to deliver the best possible sonic
performance, along with unique features that
make it as much at home in a multiroom
audio system as it is in providing power to the
additional surround channels required for the
latest digital audio formats.
The PA 4000 is alone among audio power
amplifiers in being designed to accommodate
the long speaker runs required for multiroom
applications without sacrificing the ultrawide-
bandwidth circuitry and high-current capability
technologies that are key to Harman KardonÕs
long-standing tradition of audio amplifier excel-
lence. As an added audiophile touch, five-way
speaker terminals ensure a secure connection
to large-gauge speaker wire, and individual
output level trim controls enable output bal-
ance to be set precisely.
Along with power and performance, the
PA 4000 provides the flexibility for a variety of
applications. Depending on your needs and sys-
tem requirements: the PA 4000 may be config-
ured to serve as a two-channel, high-power
amplifier for the rear surround channels in the
new 6.1 or 7.1 digital audio systems; it may be
used to power two separate remote zones or
four separate remote rooms; or Ð for the ulti-
mate in flexibility Ð it can even provide power
to a multiroom zone and rear surround chan-
nels at the same time! To allow the widest
range of system options, the PA 4000 includes
both Music Sense circuitry, which automatically
turns the amplifier on when an audio signal is
present, and a low-voltage trigger for compati-
bility with multiroom controllers.In order to fully enjoy the performance of your
amplifier, please take a few minutes to read this
ownerÕs manual. It contains important informa-
tion that will help you to make certain that the
amplifier is properly configured for operation
with the rest of the equipment in your system.
If you have any questions about this product,
its installation or its operation, please contact
your retailer or custom installer. They are your
best source of product information.
Welcome to the Harman Kardon family. We
wish you many years of listening pleasure! Features
n Dual-Input Bridgeable Multichannel
Amplifier
n High-current, ultrawide-bandwidth
design
n Dual-input design allows two
separate signals to be used for
simultaneous multizone and surround
channel or stereo listening
n Parallel line-level output connections
permit amplifiers to be cascaded for
system use
n Music Sense circuitry and low-volt-
age trigger connection for automatic
turn-on
n IR and keypad inputs for all output
channels permit individual remote
volume control
n Five-way binding post terminals
accommodate large-gauge
speaker cable
n Massive heatsinks for quiet, fan-free
convection cooling
n Output level trim controls
n Removable IEC power cord
n Specially optimized circuitry is com-
patible with long speaker wire runs
that may be necessary in a whole-
house multiroom system
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE
BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.
ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INRODUIRE LA
LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE
LA PRISE ET POUSSER JUSQU'AU FOND.
The lightning flash with arrowhead
symbol, within an equilateral triangle, is
intended to alert the user to the
presence of uninsulated dangerous voltage
within the products enclosure that may be of
sufficient magnitude to constitute a risk of
electric shock to persons.The exclamation point within an
equilateral triangle is intended to
alert the user to the presence of
important operating and maintenance
(servicing) instructions in the literature
accompanying the appliance.
CAUTION RISK OF ELECTRIC SHOCK
DO NOT OPEN
