Metro Audio Systems PA-120 User manual

POWER AMPLIFIERS
PA-120 / PA-240

Table of Contents
Introductions ----------------------------------------- 2
Features -----------------------------------------------2
Front panel controls -------------------------------3
Rear panel controls ---------------------------------4
Block diagram ----------------------------------------5
Specifications ----------------------------------------6
Table of Contents
1

Table of Contents
Introductions ----------------------------------------- 2
Features -----------------------------------------------2
Front panel controls -------------------------------3
Rear panel controls ---------------------------------4
Block diagram ----------------------------------------5
Specifications ----------------------------------------6
Table of Contents
1

Welcome
Congratulation and thank you for the purchasing EP-1series constant voltage power amplifier.
Unpacking and Installation
Introductions
2
Introductions/Features
Although it is neither complicated to install nor difficult to operate unit, a few minutes of your
time is required to read this manual for a properly wired installation and becoming familiar
with its many features and how to use them. Please take a great care in unpacking your set
and do not discard the carton and other packing materials. They may be needed when moving
your set and are required if it ever becomes necessary to return your set for service. Never
place the unit near radiators, in front of heating vents, excessive humid or dusty location to
avoid early damage and for your years of quality use.
Connect your unit with the system components according to the description on the following
pages.
- Front : Power on/off switch.
Features
•Controls
- Rear : 1 output level controls.
1 HPF(180 Hz) on/off switches.
•Connectors
- Blanced input with euro block.
- Constant voltage output with euro block .
- Power and SIG,-10dB, CLIP protect for each output channel.
•Indicators:
Congratulation and thank you for the purchasing PA Series constant voltage power amplifier.

3
FRONT PANEL
Front Panel Controls
1.OUTPUT LEVEL METER
2.CLIP INDICATORS
These indicators show current output level.
These indicators warn against overload shortly on the each output channels. We would like to
recommend for users to adjust VOLUME control when CLIP indicators are flickering to make best
performance.
3.PROTECT INDICATORS
4.POWER INDICATOR
These indicators show to be protected amplifiers due to over current or over heat.
This indicator lights when power switch is turned on.
5.POWER SWITCH
This button is power on/off switch.
Front Panel Controls
1
PA-120
POWER AMPLIFIER
3
FRO NT PANEL
Fro nt Pa ne l C o ntro ls
1.OUTPUT LEVEL METER
2.CLIP INDICATORS
These indicators show current output level.
These indicators warn against overload shortly on the each output channels. We would like to
recommend for users to adjust VOLUME control when CLIP indicators are flickering to make best
performance.
3.PROTECT INDICATORS
4.POWER INDICATOR
These indicators show to be protected amplifiers due to over current or over heat.
This indicator lights when power switch is turned on.
5.POWER SWITCH
This button is power on/off switch.
Front Pa ne l C ontro ls
1

Front Panel Controls
4
Rear Panel Controls
1.AC POWER INPUT CONNECTOR
A correct capacity of fuse and power cable should be applied. Please make sure the value of fuse
before replacing.
2.AMPLIFIER OUTPUTS
3.VOLUME CONTROLS
4.SIGNAL INPUTS
5.HPF SWITCH
These amplifier output blocks provide 100V constant voltage output for commercial and industrial use.
These controls allow to adjust output level.
This amplifier provide euro block terminae for signal input.The channels consist of balanced line and
link output.
These switches toggles between flat and 180 Hz high pass filter for each input signal.These filters
using to depend on the kind of speakers or environment of installation.
1
Front Pa ne l C ontro ls
4
1.AC POWER INPUT CONNECTOR
A correct capacity of fuse and power cable should be applied. Please make sure the value of fuse
before replacing.
2.AMPLIFIER OUTPUTS
3.VOLUME CONTROLS
4.SIGNAL INPUTS
5.HPF SWITCH
These amplifier output blocks provide 100V constant voltage output for commercial and industrial use.
These controls allow to adjust output level.
This amplifier provide euro block terminae for signal input.The channels consist of balanced line and
link output.
These switches toggles between flat and 180 Hz high pass filter for each input signal.These filters
using to depend on the kind of speakers or environment of installation.
1
PA-120
POWER AMPLIFIER

5
Block Diagram
Block Diagram
Front Pa ne l C ontro ls
4
1.AC POWER INPUT CONNECTOR
A correct capacity of fuse and power cable should be applied. Please make sure the value of fuse
before replacing.
2.AMPLIFIER OUTPUTS
3.VOLUME CONTROLS
4.SIGNAL INPUTS
5.HPF SWITCH
These amplifier output blocks provide 100V constant voltage output for commercial and industrial use.
These controls allow to adjust output level.
This amplifier provide euro block terminae for signal input.The channels consist of balanced line and
link output.
These switches toggles between flat and 180 Hz high pass filter for each input signal.These filters
using to depend on the kind of speakers or environment of installation.
1
PA-120
POWER AMPLIFIER

6
Specifications
*Specifications and design subject to change without notice for improvements.
Specifications
Model Name
Output / Impedance
Frequency Response
T.H.D
Closstalk
Rated Output Power
EP-1120 EP-1480
120W
Dimensions (W x H x D)
Weight (Net)
Power Source
S/N Ratio
Input sensitivity
/Impedance
50Hz - 15kHz
< 0.1%
>70 dB
>90 dB
AC 230 V, 50/60Hz
483x88x380mm
100V (83 Ω)
Input
link
EP-1240 EP-1360
240W
100V (42 Ω)
360W
100V (27 Ω)
480W
100V (21 Ω)
6.6 kg6.4 kg6.2 kg6 kg
0dB/20KΩ Balanced
0dB/20KΩ Balanced
EP-1600
600W
100V (16 Ω)
6.8 kg
6
Sp e c ific a tions
*Specifications and design subject to change without notice for improvements.
Sp e c ific a tions
Model Name
Output / Impedance
Frequency Response
T.H.D
Closstalk
Rated Output Power 120W
Dimensions (W x H x D)
Weight (Net)
Power Source
S/N Ratio
Input sensitivity
/Impedance
100V (83 Ω)
Input
link
PA-240PA-120
240W
100V (42 Ω)
6.2 kg6 kg
50Hz - 15kHz
<0.1%
>70 dB
>90 dB
AC 230 V, 50/60Hz
483x88x380mm
0dB/20KΩ Balanced
0dB/20KΩ Balanced