Kramer PA-120Z User manual

P/N: 2900-300802 Rev 1 www.kramerAV.com
USER MANUAL
MODELS:
PA-240Z
240W Power Amplifier
PA-120Z
120W Power Amplifier

PA-240Z - Contents
i
Contents
Introduction 1
Getting Started 1
Overview 2
Typical Applications 3
Defining the PA-240Z 240W Power Amplifier 4
Connecting the PA-240Z 6
Connecting the Output to a Balanced/Unbalanced Stereo Audio Acceptor 7
Connecting a Balanced/Unbalanced Stereo Audio Source to the Input 8
Connecting to PA-240Z via RS-232 8
RJ-45 Pinout 8
Connecting PA-240Z via the Ethernet Port 9
Operating the PA-240Z 12
Setting the DIP-Switches 12
Adjusting the Master Volume 12
Using the Embedded Web Pages 13
Setting the Speaker Output Parameters 15
Setting the Line Level Output Parameters 16
Selecting Hi-Z Mono Settings 17
Changing Standby Settings 18
Setting Device Parameters 19
Managing Web Page Security 22
Viewing the About Page 26
Technical Specifications 27
Default Communication Parameters 28
Protocol 3000 29
Understanding Protocol 3000 30
Kramer Protocol 3000 Syntax 31
Protocol 3000 Commands 32

Kramer Electronics Ltd.
PA-240Z - Introduction
1
Introduction
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world of
unique, creative, and affordable solutions to the vast range of problems that confront the video,
audio, presentation, and broadcasting professional on a daily basis. In recent years, we have
redesigned and upgraded most of our line, making the best even better!
Our 1,000-plus different models now appear in 15 groups that are clearly defined by function:
GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers; GROUP 3: Control
Systems; GROUP 4: Format & Standards Converters; GROUP 5: Range Extenders &
Repeaters; GROUP 6: Specialty AV Products; GROUP 7: Scalers; GROUP 8: Cables and
Connectors; GROUP 9: Room Connectivity; GROUP 10: Mounting and Rack Adapters;
GROUP 11: Sierra Video; GROUP 12: Digital Signage; GROUP 13: Audio; GROUP 14:
Collaboration; and GROUP 15: KM & KVM Switches.
Getting Started
We recommend that you:
Unpack the equipment carefully and save the original box and packaging materials for
possible future shipment.
Review the contents of this user manual.
Go to www.kramerav.com/downloads/PA-120Z, PA-240Zto check for up-to-date user
manuals, application programs, and to check if firmware upgrades are available (where
appropriate).
Achieving the Best Performance
Use only good quality connection cables (we recommend Kramer high-performance,
high-resolution cables) to avoid interference, deterioration in signal quality due to poor
matching, and elevated noise levels (often associated with low quality cables).
Do not secure the cables in tight bundles or roll the slack into tight coils.
Avoid interference from neighbouring electrical appliances that may adversely influence
signal quality.
Position your Kramer PA-240Z away from moisture, excessive sunlight and dust.
This equipment is to be used only inside a building. It may only be connected to other
equipment that is installed inside a building.

Kramer Electronics Ltd.
PA-240Z - Introduction
2
Safety Instructions
Caution:
There are no operator serviceable parts inside the unit.
Warning:
Use only the power cord that is supplied with the unit.
Warning:
Do not open the unit. High voltages can cause electrical shock! Servicing by
qualified personnel only.
Warning:
Disconnect the power and unplug the unit from the wall before installing.
Recycling Kramer Products
The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce
the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected
and recycled. To comply with the WEEE Directive, Kramer Electronics has made
arrangements with the European Advanced Recycling Network (EARN) and will cover any
costs of treatment, recycling and recovery of waste Kramer Electronics branded equipment on
arrival at the EARN facility. For details of Kramer’s recycling arrangements in your particular
country go to our recycling pages at www.kramerav.com/support/recycling.
Overview
Congratulations on purchasing your Kramer PA-240Z 240W Power Amplifier and/or PA-120Z
120W Power Amplifier.
Although this user manual describes the PA-240Z it refers to both PA-240Z and PA-120Z,
unless specified otherwise.
PA-240Z is a high-performance Hi-Z (70V/100V) and Lo-Z (4/8Ω), network controllable power
amplifier featuring balanced and unbalanced inputs and also a line-level balanced output. This
powerful amplifier is suitable for large-scale applications.
PA-240Z is housed in a desktop sized enclosure and two units can be mounted in a 1U rack
space using the optional RK-1 adapter.
PA-240Z provides exceptional quality and user-friendly operation.
Exceptional Quality
For PA-240Z:
A single channel of 240W into a 70V/100V line.
2 channels of 120W into 4/8Ω.
For PA-120Z:
A single channel of 120W into a 70V/100V line.
2 channels of 60W into 4/8Ω.
Individual input mix, EQ and HPF (High-Pass Filter) per output.
Built-in 3-band parametric EQ.

Kramer Electronics Ltd.
PA-240Z - Introduction
3
User-friendly Operation
Status LED indicators for the selected input, output muted and clipped signal on the
output.
Over-current, short circuit or over-heat protection –The PROTECT LED lights and the
device shuts down until correct operational conditions are regained.
Auto-standby with adjustable threshold.
Controllable via RS-232 and IP.
Typical Applications
The PA-240Z is ideal for the following typical applications:
Medium to large meeting rooms.
Auditoriums and lecture halls.
Court rooms.
Retail stores and shopping centers.
Hotel lobbies.
Transportation hubs.

Kramer Electronics Ltd.
PA-240Z - Defining the PA-240Z 240W Power Amplifier
4
Defining the PA-240Z 240W Power
Amplifier
This section defines the PA-240Z.
Figure 1: PA-240Z 240W Power Amplifier Front Panel
Figure 2: PA-120Z 120W Power Amplifier Front Panel
#
Feature
Function
ON LED
Lights green when powered on and orange when in standby.
INPUT 1 LED
Lights green when a signal is present on input 1.
INPUT 2 LED
Lights green when a signal is present on input 2.
MUTE
Lights red when the output is muted, off when unmuted.
CLIP LED
Lights red when the signal is clipped on the output and creating distortion.
(When clipping is detected, lower the volume until the LED turns off.)
PROTECT LED
Lights red in case of over-current / short circuit / over-heat.
The device shuts down until correct operational conditions are regained.

Kramer Electronics Ltd.
PA-240Z - Defining the PA-240Z 240W Power Amplifier
5
Figure 3: PA-240Z and PA-120Z Rear Panel
#
Feature
Function
AUDIO IN
Connectors
(1 and 2)
Unbalanced Stereo
Audio 3.5mm Mini
Jack
Connect to an unbalanced stereo audio source.
Balanced Stereo
Audio Terminal Block
Connector
Connect to a line-level, balanced, stereo audio source.
LINE OUT Balanced Stereo Audio
Terminal Block Connector
Connect to a balanced, stereo audio acceptor (for example,
amplified speakers).
VOLUME Control Trimmer
Master volume for speaker output –rotate to set the maximum
amplifier volume.
The volume level set here defines the maximum level of the
speaker output volume on the embedded web pages (see Setting
the Speaker Output Parameters on page 15).
FACTORY DEFAULT Button
Press to return to the factory default settings, including all the
configurations and network settings.
ETHERNET RJ-45 Connector
Connect to an ETHERNET LAN.
RS-232 (G, Tx, Rx) Port
Connect to the RS-232 connector on the A/V equipment or a PC
or other Serial Controller.
Hi-Z/Lo-Z and 100V/70V
DIP-Switches
Set to Hi-Z for high impedance and Lo-Z for low impedance.
In Hi-Z, set to 70V or 100V.
Lo-Z/Hi-Z Out Terminal Block
Connectors
For Lo-Z: connect stereo output to Lo-Z speakers:
L+ and L- to the left speaker; R+R- to the right speaker.
For Hi-Z (70V or 100V): connect Hi-Z and COM to mono Hi-Z
speakers.
The speaker can output either the Left side of the audio input or
reduce the stereo input to a mono signal (see Selecting Hi-Z Mono
Settings on page 17).
Power Connector with Fuse
AC connector, enabling power supply to the unit.
POWER Switch
Switch for turning the unit on or off.

Kramer Electronics Ltd.
PA-240Z - Connecting the PA-240Z
6
Connecting the PA-240Z
Always switch off the power to each device before connecting it to your PA-240Z. After
connecting your PA-240Z, connect its power and then switch on the power to each device.
To connect the PA-240Z as illustrated in the example in Figure 4:
1. Connect the audio sources. For example:
An unbalanced stereo audio source to the AUDIO IN 1 3.5mm mini jack (for
example, an MP3 player).
A balanced stereo audio source to the AUDIO IN 2 5-pin terminal block connector
(for example, the Kramer VP-444 Switcher/Scaler).
2. Connect the LINE OUT balanced stereo audio 5-pin terminal block connecter to a
balanced stereo input (for example, an additional PA-240Z device).
3. Connect the Hi-Z OUT or Lo-Z OUT 4-pin terminal block connector as follows:
For Hi-Z connection: connect Hi-Z and COM terminal blocks to the + and –terminals
of a mono speaker (for example, the Galil 8-C ceiling speakers, daisy chained).
The speakers either output the left side (L+, L-) of the audio input or the stereo input
reduced to a mono signal (see Selecting Hi-Z Mono Settings on page 17).
For Lo-Z connection: connect the L+ and L- connectors to the left-side speaker and
the R+ and R- connectors to the right-side speaker (for example, the Yarden 6-O
speakers).
4. Set the DIP-switches :
For Hi-Z operation: Set DIP-switch 1 to Hi-Z and then set DIP-switch 2 to 70V or
100V.
For Lo-Z operation: Set DIP-switch 1 to Lo-Z.
5. If required, connect:
A PC via RS-232 , see Connecting to PA-240Z via RS-232 on page 8.
The ETHERNET port , see Connecting PA-240Z via the Ethernet Port on page 9.

Kramer Electronics Ltd.
PA-240Z - Connecting the PA-240Z
7
6. Connect the power cord (not shown in Figure 4).
Figure 4: Connecting to the PA-240Z Rear Panel
Connecting the Output to a Balanced/Unbalanced
Stereo Audio Acceptor
The following are the pinouts for connecting the output to a balanced or unbalanced stereo
audio acceptor:
Figure 5: Connecting to a Balanced Stereo Audio
Acceptor
Figure 6: Connecting to an Unbalanced Stereo
Audio Acceptor

Kramer Electronics Ltd.
PA-240Z - Connecting the PA-240Z
8
Connecting a Balanced/Unbalanced Stereo Audio
Source to the Balanced Input
The following are the pinouts for connecting a balanced or unbalanced stereo audio source to
the balanced input:
Figure 7: Connecting a Balanced Stereo Audio
Source to the Balanced Input
Figure 8: Connecting an Unbalanced Stereo
Audio Source to the Balanced Input
Connecting to PA-240Z via RS-232
You can connect to the PA-240Z via an RS-232 connection using, for example, a PC.
From the RS-232 9-pin D-sub serial port connect:
Pin 2 to the TX pin on the PA-240Z RS-232 terminal block
Pin 3 to the RX pin on the PA-240Z RS-232 terminal block
Pin 5 to the G pin on the PA-240Z RS-232 terminal block
RJ-45 Pinout
:
PIN EIA /TIA 568B
PIN
Wire Color
1
Orange / White
2
Orange
3
Green / White
4
Blue
5
Blue / White
6
Green
7
Brown / White
8
Brown

Kramer Electronics Ltd.
PA-240Z - Connecting the PA-240Z
9
Connecting PA-240Z via the Ethernet Port
You can connect to the PA-240Z via Ethernet using either of the following methods:
Directly to the PC using a crossover cable (see Connecting the Ethernet Port Directly to a
PC on page 9).
Via a network hub, switch, or router, using a straight-through cable (see Connecting the
Ethernet Port via a Network Hub or Switch on page 11).
If you want to connect via a router and your IT system is based on IPv6, speak to your IT
department for specific installation instructions.
Connecting the Ethernet Port Directly to a PC
You can connect the Ethernet port of the PA-240Z directly to the Ethernet port on your PC
using a crossover cable with RJ-45 connectors.
This type of connection is recommended for identifying the PA-240Z with the factory
configured default IP address
After connecting the PA-240Z to the Ethernet port, configure your PC as follows:
1. Click Start > Control Panel > Network and Sharing Center.
2. Click Change Adapter Settings.
3. Highlight the network adapter you want to use to connect to the device and click Change
settings of this connection.
The Local Area Connection Properties window for the selected network adapter appears
as shown in Figure 9.
Figure 9: Local Area Connection Properties Window
4. Highlight either Internet Protocol Version 6 (TCP/IPv6) or Internet Protocol Version 4
(TCP/IPv4) depending on the requirements of your IT system.

Kramer Electronics Ltd.
PA-240Z - Connecting the PA-240Z
10
5. Click Properties.
The Internet Protocol Properties window relevant to your IT system appears as shown in
Figure 10 or Figure 11.
Figure 10: Internet Protocol Version 4 Properties Window
Figure 11: Internet Protocol Version 6 Properties Window

Kramer Electronics Ltd.
PA-240Z - Connecting the PA-240Z
11
6. Select Use the following IP Address for static IP addressing and fill in the details as
shown in Figure 12.
For TCP/IPv4 you can use any IP address in the range 192.168.1.1 to 192.168.1.255
(excluding 192.168.1.39) that is provided by your IT department.
Figure 12: Internet Protocol Properties Window
7. Click OK.
8. Click Close.
Connecting the Ethernet Port via a Network Hub or Switch
You can connect the Ethernet port of the PA-240Z to the Ethernet port on a network hub or
using a straight-through cable with RJ-45 connectors.
Control Configuration via the Ethernet Port
To control several units via Ethernet, connect the Master unit (Device 1) via the Ethernet port
to the Ethernet port of your PC. Use your PC provide initial configuration of the settings (see
Connecting PA-240Z via the Ethernet Port on page 9).

Kramer Electronics Ltd.
PA-240Z - Operating the PA-240Z
12
Operating the PA-240Z
This section describes the following operations:
Setting the DIP-Switches on page 12.
Adjusting the Master Volume on page 12.
Setting the DIP-Switches
By default, the DIP-switches are set to Hi-Z and 100V.
DIP-Switch #
Setting
Note
1
Set to Hi-Z for high impedance configurations.
Use when connecting mono speakers
in daisy-chain.
Set to Lo-Z for low impedance configurations.
Use when connecting to a single pair of
speakers, one to the left and one to the
right.
2
When in Hi-Z, set either to 70V or 100V according to
your requirements.
Adjusting the Master Volume
Use the VOLUME trimmer on the rear panel to set the maximum level for the speaker
output speaker output. Adjust the master volume (speaker output) via the web pages, see
Setting the Master Volume and Balance on page 16.

Kramer Electronics Ltd.
PA-240Z - Using the Embedded Web Pages
13
Using the Embedded Web Pages
Control the PA-240Z via the web pages which are accessed using a Web browser and an
Ethernet connection.
Before attempting to connect:
Perform the procedures described in Connecting PA-240Z via the Ethernet Port
on page 9.
Ensure that your browser is supported.
The following operating systems and Web browsers are supported:
OS
Browser
Windows (7 and higher)
IE
FireFox
Chrome
Mac/iOS
Safari
Android
Chrome
The PA-240Z web pages enable performing the following:
Setting the Speaker Output Parameters on page 15.
Setting the Line Level Output Parameters on page 16.
Selecting Hi-Z Mono Settings on page 17.
Changing Standby Settings on page 18.
Setting Device Parameters on page 19.
Managing Web Page Security on page 22.
Viewing the About Page on page 26.

Kramer Electronics Ltd.
PA-240Z - Using the Embedded Web Pages
14
To browse the PA-240Z web pages:
1. Open your Internet browser.
2. Type the IP address of the device in the address bar of your browser. For example, the
default IP address:
The Authentication window appears (if security is enabled):
Figure 13: Using the Embedded Web Pages –Authentication Window
3. Enter the User Name (Admin, by default) and Password (Admin, by default) and click
OK.
The Speaker Output page appears:
Figure 14: Speaker Output Page with Navigation List on Left
4. Click the desired web page or click the arrow to hide the navigation list.

Kramer Electronics Ltd.
PA-240Z - Using the Embedded Web Pages
15
Setting the Speaker Output Parameters
Use the Speaker Output page to set the speaker input signals mixing and the output
parameters.
PA-240Z enables automatically setting the line level output parameters according to the
speaker output parameters (see Setting the Line Level Output Parameters on page 16).
The Speaker Output Mixer enables performing the following operations:
Mixing the Input Signal Levels on page 15.
Setting Equalization Levels on page 16.
Setting the Master Volume and Balance on page 16.
Mixing the Input Signal Levels
The indication buttons next to Input 1 and Input 2 appear green when there is an active
signal on that input.
To set the Mixing Level:
1. In the Navigation pane, click Speaker Output. The Speaker Output page appears.
Figure 15: Speaker Output Page
2. In the Mix column, use the sliders to set the mixing level for each input or enter their
value below the sliders.
3. Set the High-Pass Filter ON or OFF to cut-off frequencies lower than 70Hz.
To save energy, enable the High-Pass Filter when outputting soft background music or vocal
sounds.

Kramer Electronics Ltd.
PA-240Z - Using the Embedded Web Pages
16
Setting Equalization Levels
We recommend that you first set the frequencies, then the Q and finally the gain for the Bass
Mid and Treble ranges.
To set EQ levels:
1. In the navigation pane click Speaker Output. The Speaker Output page appears.
2. In the EQ column set the following:
Set the Bass [60Hz, 80Hz, 100Hz or 200Hz] Mid [500Hz, 1kHz, 1.5kHz or 2.5kHz]
and Treble [10kHz, 12.5kHz, 15kHz or 17.5kHz] frequency.
Set the Bass, Mid and Treble Q-Factor [0.1 to 16].
The lower the Q value, the higher the bandwidth.
Use the sliders to set Bass, Mid and Treble equalization or enter their value below
the sliders.
Setting the Master Volume and Balance
The maximum master volume level of the speaker output is set via the trimmer on the rear
panel, see Adjusting the Master Volume on page 12.
In the Master Volume column:
Use the slider to set the speaker audio level.
Click to mute/unmute the output volume.
Set the left right balance on the speaker output.
Setting the Line Level Output Parameters
PA-240Z enables automatically setting the line level output parameters according to the
speaker output parameters see Setting the Speaker Output Parameters on page 15 or setting
them manually via the Line Level Output page.
To set the line level output parameters independently (unlinked to speaker output
parameters):
1. In the Navigation pane, click Speaker Output. The Speaker Output page appears.
2. Click Unlinked.
3. In the Navigation pane, click Line Level Output. The Line Level Output page appears.

Kramer Electronics Ltd.
PA-240Z - Using the Embedded Web Pages
17
Figure 16: Line Level Output Page
4. Set the line level parameters in the Line Level Output page, as instructed for Setting the
Speaker Output Parameters on page 15.
Selecting Hi-Z Mono Settings
To Select Hi-Z Mono Settings:
1. In the Navigation pane, click Audio Settings. The Audio Settings page appears.
2. Set the Hi-Z reduction to mono to one of the following:
Select Left only to use left audio in connectors
Select Stereo Down Mix to reduce the stereo input to mono.
Figure 17: Audio Settings Page

Kramer Electronics Ltd.
PA-240Z - Using the Embedded Web Pages
18
Changing Standby Settings
To change standby settings:
1. In the Navigation pane, click Audio Settings. The Audio Settings page appears
(Figure 17).
2. Define the Standby Settings:
Set auto standby to ON or OFF.
Type the audio threshold to initiate auto standby.
Set the standby timeout to 5, 10 or 15 minutes.