IC Audio AMP 480 User manual

… to make people listen
Power Amplifier AMP 120/240/480
User manual
ic audio
AMP 120 / AMP 240
AMP 480
AMP 120 POWER AMPLIFIER
MIC/LINE MUSIC
AMP 480 POWER AMPLIFIER
MIC/LINE MUSIC
Status 02/2006

2EN
Power-Amplifier - Rear -
AMP 120/240/480 ic audio
AMP 480
AMP 120 / AMP 240
POWER INPUT:350WATTSPOWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
MI C/ LI NE I NP UT
REMOTE START
LINE
MIC
SENS
MU SI C OU TP UT MU SI C IN PU T
POWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
REMOTE START
LINE
MIC
SENS
MIC/LINE

Content
3EN
Preperation
Devuce Functions
-Front side-
Special Characteristics
Device Functions
-Rear side-
Further Information
Unpacking 5
Safety Instructions 5
General Informations 5
Rack-Mounting 6
Cooling 6
LED - Display 9
ON/OFF -Switch 9
Volume - Controller 10
Alarm Function 7
Common Function 7
Inputs 7
Outputs 7
115V und 230V Mains Connections 12
Input Sensitivity 12
24V Battery Connections 13
Remote Start (AMP480) 13
100V/8W Speaker Output 14
Disjoined Anouncement Zones 14
INPUT 15
Priority INPUT 16
OUTPUT 17
Top view of all functions 18
Power Amplifiier Settings 20
Cicuit Board Fuse 20
Stand alone (default setting )20
Double - or Treble Operating 20
Connection Plan 21
Technical Specifications 22
Block Plugging Diagramm 23
Index 24
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Preparation
- Unpacking
- Safety Instructions
- General Informations
- Rack-Mounting
- Cooling
Unpacking
Safety Instructions
General Informations
Rack-Mounting
Cooling
4EN
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Please note the unpacking instructions
Please note the safety instructions before the
connecting the AMP 120/240/480
Cooling and instructions for the installation
Informations about the right rack-mounting
Please note the ventilation - cooling
guidelines

5EN
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Unpacking
Please verify if the following parts were delivered:
!line cord
!mounting foots pre-assembled
Safety instructions
The wires of the main power line have the following
colours:
GREEN and YELLOW: (E)
BLUE: (N)
BROWN : (L)
As the colours of the wires in the mains lead of this
apparatus may not correspond with the coloured
markings identifying the terminals in your plug
proceed as follows:
The wire which is coloured green and yellow must
be connected to the terminal which is marked by
the letter E or by the safety earth symbol or
coloured green and yellow. The wire which is
coloured blue must be connected to the terminal
which is marked with the letter N or coloured
black. The wire which is coloured brown must be
connected to the terminal which is marked with the
letter L or coloured red.
If a 13 Amp (B.S.1363) plug or any other type of
plug is used,a 5 Amp fuse must be fitted either in
the plug or at the distribution board.
!DO NOT run microphone cables near mains,
data, telephone or 100V line cables.
!DO NOT run 100V line cables near data,
telephone or other low voltage cables.
!DO NOT exceed 90% of the amplifiers output
power when using 100V line (speech only).
!DO NOT exceed 70% of the amplifiers output
power when using 100V line (high level
background music).
!DO NOT use re-entrant horn loudspeakers for
background music unless the loudspeaker has
been specifically designed for this purpose.
!AVOID jointing the microphone cable, when
this is unavoidable make sure a good screened
connector is used, e.g. XLR.
!ALWAYS use a balanced or floating low
impedance microphone terminating into a
balanced input on long microphone cable runs.
!ALWAYS use a mains grade double insulated
cable for the loudspeaker cable runs.
!ENSURE that all loudspeakers are in-phase.
!ENSURE that there are no short circuits on the
loudspeaker line before connecting to the
amplifier.
General Informations
Preparation

6EN
Exhaust air
AUTOREVERSE
Background Music Casette Player
PROGRAM
EJECT
40°C
POWER
Preparation ic audio
Cooling
The housing of the Power Amplifier is a 19 inch
rack standard construction. Please check if you
have enough space for cooling the amplifier. For
the optimum mounting in the 19” rack you should
fix the power - amplifier in the rack-frame with 4
screws.
Please use for the mounting in the rack-system the
support bracket of the rack-producer.
Rack-Mounting
The power amplifier AMP 480 pulls fresh air
through the small holes in the front sheet and
pushes the exhaust air through the long holes in
the rear sheet. The amplifier has a temperature
controlled cooling. It will be automatically activated
by a increased power consumption.
Please make sure that the internal space of the
rack system is cooling and you have a room
maximum temperature of 40°C..
We recommend to install a cooling system at the
rear site of the racksystem to support the transport
the exhaust air in the racksystem.

Special Characteristics
- Alarm Function
- Common Function
- Inputs
- Outputs
- Remote Start
!2 split output zones
!Music muting
!Priority input
Alarm Function
!INPUT
RCA Jack Socket
XLR
1/4” Stereo Socket
Inputs
!115V-230V (AMP120/AMP240) Mains
Connection
!230V~240V (AMP480) Mains Connection
!24V Battery Connection
Common Function
!100V - Speaker of the first Zone
!8 ohm - Speaker of the first Zone
!100V - Speaker of the second Zone
!OUTPUT
RCA Jack Socket
XLR
1/4” Stereo Socket
Outputs
7EN
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Remote Start

Device Functions
- Front side -
- LED - Display
- ON/OFF - Switch
- Controller
Display for the activation
LED - Anzeige
Setting - up the Power Amplifier
ON/OFF - Switch
Control of volume - MIC/LINE
Control of volume - MUSIC
Controller
8EN
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LED - Display
ON/OFF - Switch
Power LED
9EN
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Device Functions
- Front side -
The LED-Display shows the recording level of the
Power-Amplifier. The green LEDs show the range
in which the AMP 120/240/480 could be operated
permanently. The red LED shines only when
running in full conduction. This zone is not
advisable for long-term usage.
LED - Display
With this switch you turn on the apparat.
After turning the machine on, the LED is shining
blue. Before turning the machine on, the Master
controller should be set to a low volume.
ON/OFF - Switch
AMP 120/ 240/ 480
MIC/LINE MUSIC
AMP 120/ 240/ 480
MIC/LINE MUSIC

Volume Controller
ic audioic audio
10
Device Functions
- Front side -
With the MIC/LINE or the PRIO-Controller you can
change the volume of the Power amplifier.
MIC/LINE & PRIO- Controller
EN
AMP 120/ 240/ 480
MIC/LINE PRIO

- 115V-230V (AMP 120/ AMP 240)
Mains Connection
- 230V~240V (AMP 480)
Main Connection
- Input Sensitivity
- 24V Battery Supply
- Remote Start
- 100V/8 Speaker Output
- INPUT
- PRIORITY INPUT
- OUTPUT
- Top view of all functions
W
AMP 120
AMP 240
Selector to adapt the mains connections
AMP 480 Mains Connections
115V~230V Mains Connection
230V~240V Mains Connections
Connection to ups
24V Battery Supply
Terminal for 100V/8W speakers
100V/8W Speaker Output
Connection to the input sources
Connection to the microphone
Connection for priority
Diagramm connected with all possible devices of
the power amplifier AMP 120/ 240/ 480
INPUT
PRIORITY INPUT
OUTPUT
Top view of all functions
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11EN
Device Functions
- Rear side -
Adjustment of MIC and LINE Sensitvity
Input Sensitivity
Switch the Amplifier into operation mode over a
distance
Remote Start

AMP 120 / AMP 240
Switch 115V-230V
Device Functions
- Rear side -
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AC 230-240V Mains connection (AMP 480)
AC 115V-230V Mains connection (AMP120 / AMP240)
12
The amplifier is factory set at 230 V(AC) mains
voltage.
You can set the switch to 115V if neccessary by
pushing the slide switch from right to left.
A before please disconnect the mains cable.
Ensure yourself that the device is set to the local
mains voltage before you connect it.
115V ~ 230V (AMP 120/240)
230V~240V (AMP 480)
Mains Connection
EN
AMP 480
POWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
REMOTE START
LINE
MIC
SENS
POWER INPUT:350WATTSPOWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
MI C/ LI NE I NP UT
REMOTE START
LINE
MIC
SENS
MU SI C OU TP UT MU SI C IN PU T
MIC/LINE

AMP 120 / AMP 240
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13EN
You can also drive the device with 24V(AC).
This is useful in case your mains connection is
broken down and you can bypass this with an
uninteruptible power supply (UPS).
In this case no manual switching is interruped at
the amplifier. As soon the mains connection, the
device is automatically driven by external battery
power, regardless to the position of the ON/OFF-
switch.
Note: The connection cable must be fitted of an in-
line fuse quick blow type F15A.
24V-Battery Supply
Device Functions
- Rear side -
24V-Battery Supply / UPS Connection
24V-Battery Supply / UPS Connection
You can start the amplifier via contact from
anywhere. An external power supply (24V)
activates the amplifier and bridges the main power
switch.
Remote Start
AMP 480
Remote Start (for external 24V power supply)
POWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
REMOTE START
LINE
MIC
SENS
POWER INPUT:350WATTSPOWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
MI C/ LI NE I NP UT
REMOTE START
LINE
MIC
SENS
MU SI C OU TP UT MU SI C IN PU T
MIC/LINE

POWER INPUT:350WATTSPOWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
MI C/ LI NE I NP UT
REMOTE START
LINE
MIC
SENS
MU SI C OU TP UT MU SI C IN PU T
POWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
REMOTE START
LINE
MIC
SENS
If you want to use the amplifier only temporarily
and have the loudspeakerzone muted in normal
condition, you can use the SPEECH/ONLY-Output.
This output is only working when having contact
on the priority terminal.
Disjoined Announcement Zones
all the time
only when priority
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14
Device Functions
- Rear side -
The power amplifier provides two different speaker
zones.
!The Music/Speech - Output gives an output at
all times reproducing any signal input into the
amplifier.
!The Speech Only - Output will only work, when
the PRIORITY terminal is connected.
100V Speaker Output 8ohm Speaker Output
This output allows connection of standard low
impedance speakers. The minimum load
impedance must be 8W. When two or more
speakers are connected, ensure that they are
wired in such a way, that the load impedance is
between 8W and 16W.
EN
Priority-terminal
AMP 120 / AMP 240
Priorität
Normal
SPEECH ONLY
MUSIC / SPEECH
AMP 480
MIC/LINE

POWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
REMOTE START
LINE
MIC
SENS
INPUT
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Use the symmetric input to connect your
signal source if it is run by a pre-amplifier or a
gear with a similar symmetric guided signal
source.
On the rear side of your amplifier you can connect
your particular signal source in the region of input
depending on whether it is symmetric or
asymmetric.
XLR-INPUT
1
2
3
There is a rca jack socket for the left and one
for the right channel, which are joined together
inside the device.
This allows the connection of a stereo gear or
a device, that has no symetric output, without
any additional special cable.
Tip: HOT (Signal)
Ring: COLD (Signal)
Ground: GND
1/4” Jack Plug
GROUND RING TIP
6.35 mm Stereo
RCA Jack Plug
SCREEN (GND)
HOT (RIGHT)
SCREEN (GND)
HOT (LEFT)
UNBALANCED
BALANCED
15
Device Functions
- Rear side -
PRE-
AMP
CD
TUNER
TAPE
1: SCREEN
2: HOT
3: COLD
AMP 120/240(480)
AMP 120/240(480)
POWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
REMOTE START
LINE
MIC
SENS
MIC/LINE
MIC/LINE

POWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
REMOTE START
LINE
MIC
SENS
AMP 120/240(480)
MIC/LINE
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On the rear side of your amplifier you can connect
your microphone or any music source in the plug
of MIC/LINE (it is symmetric). The input is
adjustable.
XLR-INPUT
1
2
3
Tip: HOT (Signal)
Ring: COLD (Signal)
Ground: GND
1/4” Jack Plug
GROUND RING TIP
6.35 mm Stereo
Device Functions
- Rear side -
1: SCREEN
2: HOT
3: COLD
16EN
MIC/LINE

POWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
REMOTE START
LINE
MIC
SENS
OUTPUT
UNBALANCED
By using the output you have the possibility to
connect a tape deck or further amplifiers.
To connect an asymmetrical power
amplifier you can use the RCA socket
output at best. The output is conducted
double mono to connect your power
amplifier without any additional special
cable.
2
1
3
XLR-OUTPUT
1: SCREEN
2: HOT
3: COLD
BALANCED
To connect an additional amplifier use the
symmetric output provided that your end
device has a symmetric input, of course. To do
so you can choose either the XLR-socket or
the ¼” stereo jack socket.
Tip: HOT (Signal)
Ring: COLD (Signal)
Ground: GND
SCREEN (GND)
HOT
GROUND RING TIP
6.35 mm Stereo
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Device Functions
- Rear side -
RCA Jack Plug
1/4” Jack Plug
Power
Amplifier
Power
Amplifier
asymmetr.
Input
()
17EN
AMP 120/240(480)
AMP 120/240(480)
POWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
REMOTE START
LINE
MIC
SENS
MIC/LINE
MIC/LINE

POWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
REMOTE START
LINE
MIC
SENS
OVERVIEW of all functions
AMP 120 / 240
OVERVIEW of all functions
AMP 480
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Device Functions
- Rear side -
18EN
BOOSTER AMP UNIT 2
BALANCED
IN PUT
UNIT 1
PRE-Amplifier
BALANCED
MASTER OUT
UNIT 1
PRE-Amplifier
OVERRIDE BALANCED
MASTER OUT
BOOSTER AMP UNIT 2
BALANCED
IN PUT
REMOTE START
POWER INPUT:350WATTSPOWER INPUT:350WATTSPOWER INPUT:350WATTS
POWER INPUT:350WATTSPOWER INPUT:350WATTS
MI C/ LI NE I NP UT
REMOTE START
LINE
MIC
SENS
MU SI C OU TP UT MU SI C IN PU T
REMOTE START
MIC/LINE

Further
Information
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- Power Amplifier Settings
- Circuit Board Fuse
- Stand alone (default setting)
- Double - or Treble Operating
- Connection Plan
- Technical Specifications
- Block Plugging Diagram
- Index
Containing all technical specifications
Technical Specifications
Circut construction
Block Plugging Diagram
Content in alphabetical order.
Index
19EN
Jumper-Settings
Power Amplifier Settings
Checking the fuse
Circuit Board Fuse
Jumper-Settings
Stand alone (default setting)
Jumper-Settings
Double - or Treble Operating
Overview
Connection Plan

Power amplifier - Settings
The power amplifier have three different input
sensitivity settings. You can select the sensitivity with
the jumper SW 401.
(1V, 500mV und 100mV)
AMP 120/240/480
20EN
100mV
500mV
SW401
SW403
print board
JP1 JP2
SW404
1V
Power amplifier-settings
Stand alone (default setting) double - oder treble operating
For the stand alone operation with the power
amplifier, select the jumper (SW403 and SW404) of
the print board to the “STAND ALONE” Position.
For the double or treble operation define power
amplifier as an MASTER - UNIT. Select the jumper to
the MASTER position (look at the draft). All further
power amplifiers will adjust with the jumper “SLAVE”.
(Look at the draft)
The power amplifier have three different input
sensitivity settings. You can select the sensitivity with
the jumper SW 401.
(1V, 500mV und 100mV)
SW403
SW404 Stand Alone
Master
Slave
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Circuit Board Fuse
If the amplifier isn’t working, please check the outside
fuse on the rear panel or the inside one.
Further
Information