AMPLIFIER MONITOR
AMPLIFIER OUTPUT LEVEL METER ( dB )
AMPLIFIER OUTPUT SIGNAL
8 97 11 12
4
32
1
OFF
MAX
MONITOR VOLUME
7
5
6
3
4
8
AMPLIFIER SELECT
1
11
12
9
10
2
10654321
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AM 4120
amperes
Thank you for choosing another quality product from Amperes Electronics.
VER 2 / 2015
AM4120 monitor panel does not only provide audio monitoring of your pa power amplifiers of up to 12 units
connected to it with its high fidelity 1 watt speaker, but it offers 5 level LED monitoring as well as continuous audio
presence signal indicators. The LED level meter proves to be useful in the amplifier output calibration of your
installation.
With AM4120, we offer a product of easy installation, with the affordable price of a quality equipment. Though it is
rather simple in the installation works, a brief read through the manual is recommended.
PAGE 2 AM4120 | 12 Ch Amplifier Monitor Panel
AMPLIFIER MONITOR
AMPLIFIER OUTPUT LEVEL METER ( dB )
AMPLIFIER OUTPUT SIGNAL
8 97 11 12
4
32
1
OFF
MAX
MONITOR VOLUME
7
5
6
3
4
8
AMPLIFIER SELECT
1
11
12
9
10
2
10654321
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AM 4120
amperes
Parts Identification
1
2
3
4
5
6
7
1. SPEAKER
Audio monitoring of selected amplifier output is monitored from this 1 watt speaker
2. MONITOR VOLUME KNOB
3. AMPLIFIER SELECT
The loudness of speaker volume is controlled from this 5 steps attenuator.
This knob is used to select the amplifier intended to be monitored.
4. LED BAR METER
The output level of the amplifier selected is monitored from the 5 segment LED bar meter. The meter indicates the
actual output level of amplifier regardless of the position of the monitor volume. The reference of the reading shall
be 0dB equivalent to 100V line output.
5. AMPLIFIER OUTPUT SIGNAL LED
6. DC SUPLLY CONNECTOR
These LED shall provide signal presence of all the amplifiers connected to the monitoring panel.
AM4120 shall require 24V DC supply for its operation. Kindly use recommended power supply (Amperes PS9400).
7. AMPLIFIER INPUT CONNECTOR
Polarity of amplifiers to be connected to AM4120 shall be observed as wrong connection shall cause your power
pack faulty.
NOTE :
Amperes Electronics Sdn Bhd has the policy of improving or reviewing its products in design, performance as well as quality
from time to time. It is therefore, Amperes Electronics has the right to change the above specifications without prior notice.
The specification change shall cover the physical appearance, features as well as components used. However, amperes
Electronics shall maintain at all times that the products manufactured are of highest quality.
Operating voltage 24V DC via PS9400 PSU
Power consumption 50 mW
Amplifier inputs 12 : 70 / 100V line
Monitoring mode Audio : 1W speaker with 5 presets
Visual : 5 segment LED level meter
LED for all channels
Dimensions (WxHxD) 482 x 44 x 180 mm
Weight 2.1 kg
AM4120
Connection Schematic
AMP.INPUT SIGNAL
P.AMP #12
P.AMP #1
100V
COM
COM
100V
PLEASE OBSERVE CONNECTION
POLARITY
DC24V REG.SUPPLY
(AMPERES PS9400)
AMPERES AM4120 SHALL OPERATE
WITH OR WITHOUT 24V DC SUPPLY
ONLY LED BAR METER IS NOT AVAIL-
ABLE WITHOUT 24V DC SUPPLY
CAUTION : PLEASE OBSERVE POLARITY
AMP 12
AMP IN - FROM AMPLIFIER OUTPUT
PLEASE OBSERVE LINE POLARITY
TO ZONE SELECTOR / SPK
AMP 1
AMP IN 12
AMP IN 1
AM 4120
AMPLIFIER MONITOR PANEL WIRING DIAGRAM
AMPERES ELECTRONICS
Another Quality Product From
AM 4120
AMPLIFIER MONITOR
100V
AMP 7
DC 24V
+
-
AMP 1
100V
AMP 4
100V
COM
100V
100V
COM
COM
AMP 2 AMP 3
COM
100V
COM
COM
AMP 5
100V
AMP 6
COM
AMP 12
COM
COM
AMP 8
100V
COM
100V
AMP 9
100V
100V
AMP 11
COM
AMP 10
COM
100V
AM4120
Technical Specifications
PAGE 3AM4120 | 12 Ch Amplifier Monitor Panel
Warranty Conditions
Disclaimer
AMPERES ELECTRONICS SDN BHD
MADE IN MALAYSIA
Published : March 2015
ISO 9001: 2008
Design & Manufacture of Public Address Equipment and Systems
Certicate No. 16895 / A / 0001 / UK / En
Only Amperes Electronics Service Centres are allowed to make warranty repairs : a list of Amperes Electronics
Service Centres may be asked for by the purchaser or send directly to Amperes Electronics Sdn Bhd at 70 Jalan
Industri PBP 3, Tmn Perindustrian Pusat Bandar Puchong, 47100, Puchong, Selangor, Malaysia or its authorized
master distributor, TNT Links Sdn Bhd / MyPA Systems Sdn Bhd. This warranty is not valid if repairs are
performed by unauthorized personnel or service centres.
This warranty covers only repairs and replacement of defective parts ; cost and risks of transportation as well as
removal and installation of the product from the main system are for the account of the purchaser. This warranty
shall not extend to the replacement of the unit.
This warranty does not cover damages caused by misuse, neglect, accident of the product as well as using the
product with power supply voltage other than shown on the product, or any other power supply source / adaptor
not recommended by the manufacturer.
This warranty does not cover damages caused by fire, earthquakes, floods, lightning and every cause not directly
related to the unit.
This warranty does not include any indemnity in favor of the purchaser or the dealer for the period out of use of the
unit; moreover the warranty does not cover any damages which may be caused to people and things when using
the product.
This warranty certificate is valid only for the described product, and is not valid if modifications are made on this
certificate or on the identification label applied on the product.
This warranty covers all the material and manufacturing defects and is valid for a period of 12 months from the
date of purchase or for a longer period in countries where this is stated by a national law. In this case, the
extension is valid only in the country where the product is purchased.
Amperes Electronics Sdn Bhd is not obliged to modify previously manufactured products under warranty if the
design changes or improvements are made.
Information contained in this manual is subject to change without prior notice and does not represent a
commitment on the part of the vendor. AMPERES ELECTRONICS SDN BHD shall not be liable for any loss or
damages whatsoever arising from the use of information or any error contained in this manual.
It is recommended that all services and repairs on this product be carried out by AMPERES ELECTRONICS SDN
BHD or its authorized service agents.
AMPERES series must only be used for the purpose they were intended by the manufacturer and in conjunction
with this operating manual.
AMPERES ELECTRONICS SDN BHD cannot accept any liability whatsoever for any loss or damages caused by
service, maintenance or repair by unauthorized personnel, or by use other than that intended by the manufacturer.
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