Majorcom: PA120 User manual

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux : 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
User Manual
PA120
PA240
PA360

User Manual
www.majorcom.fr • [e-mail]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
Table of Contents
Introductions ...................................................................................... 2
Features .............................................................................................. 3
Controls ............................................................................................... 4
Setups ................................................................................................. 5
Connections ...................................................................................... 6
Block diagrams ................................................................................ 8 Specifications
................................................................................... 9
Applications ...................................................................................... 10

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
Introduction
PA120 / PA240 / PA360
Unpacking and Installation
Although it is neither complicated to install nor difficult to operate your amplifier, a few minutes of your time is
required to read this manual for a properly wired installation and becoming familiar with its features and how
to use them. Please take a great care 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 radiator, in front of heating vents,
to direct sun light, In excessive humid or dusty location to avoid damages and to guaranty a long reliable
use.
Connect your unit with the system components according to the description on the following pages.
PA240

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
Features
The PA120, PA240 and PA360 are comprehensive, qualified power amplifier solutions for commercial and
industrial applications. These low-cost units provide all necessary features in a multifarious building-block
format.
* One line input and one link output with XLR jacks.
* Low impedance(4Ω) and constant voltage(70V, 100V) output with EURO block terminal.
* 120watts(PA120), 240watts(PA240) and 360watts(PA360) rated power output.
* Advanced protection system includes current limiting, over current and thermal protection.
* 19-inches standard rack mountable type.
* Wide frequency range from 40Hz to 16kHz ± 3dB.
* Low distortion and low noise level.
* Designed for operation on either AC Mains or DC 24V evacuations.
* Adjustable input level from -12dB to 0dB.
* Built in 400Hz high-pass filter.
* Built in high temperature detection and auto muting function.
* Expendable by adding power amplifier with LINK terminal.
* Compact size(2U) and lightweight.
* Ideal commercial and industrial use.

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
Controls
Front Panels
[ Figure 1.1 Front panel diagram ]
1. Ventilation fan.
2. Indicators ( Protection and Output level )
3. Power switch with power indicator.
Rear Panel
[ Figure 1.2 Rear panel diagram ]
1. DC +24V input terminal.
2.AC power input connector with fuse holder.
3. Speaker connection terminal (4-ohm, 70V, 100V and COM).
4. Level adjustment (-12dB to 0dB).
5. HPF(400Hz) on/off switch.
VOLTAGE
MODEL
115 / 120Vac
220 / 230 / 240 Vac
PA120
T4 A / 250V
T3.15 A / 250V
PA240
T8 A / 250V
T4 A / 250V
PA360
T12 A / 250V
T6.3A / 250V

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
6. Signal input and Link output connectors.
7. Ground switch for provide against ground loop.
8. Air flow.

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
Setups
Installation
CAUTION : Before you begin, make sure your amplifier is disconnected from the power source, with the power
switch in the “OFF” position.
Wiring Guide
Choose input wire and connectors
HPA recommends using pre-built or professionally wired balanced line. 22 to 24 gauge cables. Figure 2.1
shows connector pin assignments for wiring.
[ Figure 2.1 Input wire and connectors ]
Choose output wire and connectors
For the amplifier output connectors, HPA recommends using pre-built or professionally wired, high-quality, and
heavy gauge speaker wires. You may use EURO blocks for your output connectors. To prevent the possibility
of short-circuits, wrap or otherwise insulate exposed loudspeaker cable connectors.
Using the guidelines below, select the appropriate size wire based on the distance from amplifier to speaker.
The wire sizes apply to the 4-ohm tap.
Distance Wire Size
Up to 25 ft. 16 AWG
26~40 ft. 14 AWG
41~60 ft. 12AWG
61~100 ft. 10AWG
101ft~150 ft. 8AWG
151~200 ft. 6AWG
NOTE : Custom wiring should only be performed by qualified personnel. Class 2 wiring is required.
CAUTION : Never use shielded cable for output power wiring

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
Connections
OUTPUT : Maintain proper polarity on output connectors.
For output channel, connect the output EURO block terminals to the loudspeaker loads. Use terminals marked
(4Ω) for a 4-ohm loudspeaker load, or use terminals marked 70V or 100V and COM for constant-voltage
loudspeaker loads.
Connect the COM terminal to speaker negative(-) lead; connect one of the other terminals to speaker
positive(+) lead.
The impedance and output voltage are same as following Table 1.1
PA-120
4Ω / 22V
41Ω / 70V
83Ω / 100V
PA-240
4Ω / 31V
21Ω / 70V
41Ω / 100V
PA-360
4Ω / 38V
13.6Ω / 70V
27.8Ω / 100V
[ Table 1.1 Output voltage and impedance ]
NOTE : Impedances indicated in the table1.1 represent the total speaker system impedances.
Speaker connection is shown in Figure 3.1
[ Figure 3.1 How to connect speakers ]

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
Connections
CAUTION : Never use both the Low-Z(4 ohms) and Hi-Z(70V and 100V) terminals atthe same time.
[ Figure 3.2 Wrong connection ]

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
Specifications
PA120
PA240
PA360
Electrical
Rated Output
(at T.H.D 1.0%, 1kHz)
120Watt
240Watt
360Watt
Gain Control
-12dB ~ 0dB
Input Sensitivity
(at Balanced line)
1.0 ± 0.1Vrms / 10Kohm
High-pass Filter(at 400Hz)
-3dB
Frequency Response
+1.5 / -3 dB at 70Hz~18kHz
S/N Ratio
Better than 90dB
T.H.D at 1/2 rated output, 1kHz
Less than 1.0%
Output Voltage and
Impedance
4Ω / 22V
4Ω / 31V
4Ω / 38V
41Ω / 70V
21Ω / 70V
13.6Ω / 70V
83Ω / 100V
41Ω / 100V
27.8Ω / 100V
Construction
Cooling
FAN
Operating Temperature/Humidity
0°~40°C at 95% at non-condensing
Dimensions (Width/Height/Depth)
482 mm X 88 mm X 340 mm
Net Weight
11.65kg
13.87kg
15.16kg
Power Consumptions at 1/8 power
185W
361W
525W

User Manual
www.majorcom.fr • [email protected]
Services techniques et commerciaux: 56, chemin de la Flambère - 31300 TOULOUSE (France) • Tel. [phone] • Fax. [phone]
SiègeSocial:RN307-78810 FEUCHEROLLES • S.A. Capital 80.000 € • SIRET 334 579 869 000 28 • NAF 4652 Z • TVA Intracommunautaire FR 12334579869
MAJORCOM \ QUALITE \ ENREGISTREMENT DES DOCUMENTS \ ADMINISTRATIF \ ENR-12-PEM-V02
Power Requirement
AC100V~240V, 50/60Hz and/or DC24V
Necessary modifications are carried out without notice