EV Rider MA-1212, MA-1206 User Manual

MA-1212

R

INPUT5

Mute INPUT1

OFF

ON

0010100010100010100010100010100010

Professional Mixer/AmplifierProfessional Mixer/Amplifier

INPUT6

INPUT7

INPUT2

INPUT3

INPUT8

INPUT9

INPUT4

AUX1

INPUT10

R

+101010 +10

MASTER

010

POWER

BASS TREBLE

10

AUX2

MONITOR
OUTPUT

U.S.A and Canada only. For customer orders, contact Customer Service at:

800/392-3497 Fax:[phone]

Europe, Afuica, and Middle East only. For customer orders, contact customer Service at:

+ 49 9427-706 0 Fax: + 49 9421-706 265

Other International locations. For customer orders, contact Customer Service at:

+ 1 952 884-4051 Fax: + 1 952 887-9212

For warranty repair or service information, contact the Service Repair department at:

800/685-2606

For technical assistance, contact Technical Support at: 886/78 AUDIO

Specifications subject to change without notice.

MA-1206
MA-1212

60 watt

120 watt

Professional Mixer/Amplifiers

Instruction Manual and Users Guide

INSTALLATION NOTES

At all times, the amplifier has to be operated under appropriate conditions. This includes that the

operation location provided sufficient ventilation and the device is not exposed to direct sunlight or
the direct radiation or reflection from any heat source. Installing the loudspeaker systems choose a
location that gets not affected by extreme and / or constant vibration or other mechanical oscillation.
also make sure that the speakers are installed at locations that are free from dust and / or moisture.

CAUTION

We strongly recommend that you leave the connection of the appliance to the qualified and
experienced service technician who is specialized in connecting electrical and electronically equipment.
Do not take the risk of Electro-shock or shock hazard. To reduce the risk of Electro-shock, all connections
have to be accomplished before it is permissible to connect the amplifier to the main supply, Before
carried out correctly and that no short-circuit connecting the appliance to the mains supply, once again
make certain that all connections are existing. The overall sound reinforcement installation has to be in
accordance to the laws, regulations, standards, and guidelines that are relevant and applicable in

the country where the equipment is going to be operated.

AC POWER SUPPLY

CAUTION

This equipment operates from a power source that does not apply more than 244 VAC(r.m.s) between

conductors or between either supply conductor and ground.the supply

DC POWER SUPPLY

CAUTION

A 24V DC power source (i.e. a battery) has to be connected to the terminals (13) that are covered by a
protective lid. To reduce the risk of dropping voltage to a minimum and to eliminate the danger of damaging
the battery cables by thermal overload, these cables have to be at least 2.5mm in diameter, each
Switching the amplifier on or off is performed through the power switch (6).

CONNECTING THE OUTPUT TERMINALS

CAUTION

TERMINALS marked with the symbol are HAZARDOUS LIVE and the external wiring connected
to these TERMINALS requires installation by an INSTRUCTED PERSON or the use of ready-made lead

or cords to avoid the risk of electrical shock, the bare conductors leading to the outputnever touch

terminals of the amplifier when it is in operation. Under figures, show the possible connections of the
" OUTPUT" speaker terminals accessible by removing the protective cover. Bear in mind the following
rules:

Constant impedance lines

The total impedance of the speakers connected must correspond to that selected on the amplifier's

output terminals.

The sum of the power capacities of the speakers must be no lower than the amplifier's power capacity.
The length of the connecting cables must be as possible; in any case, the longer the distance to be

covered and the greater must be the cross-section of the cables.

Constant voltage lines

Each speaker must be equipped with a line transformer with an input voltage equal to that of the line (25,
70, 100V).
The sum of the power capacities of the speakers must not exceed the output power capacity of the

amplifier (i.e. total wattage of speakers installed in zones 1 through 5).

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SAFETY PRECAUTIONS

1. Please read the notes proceeded by the symbol as they provide importantwith special attention,
safety information.

2. The power supply voltage of the amplifier has a sufficiently high value to involve the risk of electrical
shock; therefore, never install, connect, or disconnect the equipment with the power supply

switched on.

3.

The metal parts of the equipment are earthed by means of the power cable. If the power socket
used to Supply power does not have an earth connection, call a qualified electrician who will earth

the equipment by means of the terminal.

Make sure that the power supply cable of the equipment cannot be trodden on or crushed by objects,

4.
To ensure that the cable is not damaged.

To prevent the risk of electric shock, there are no parts inside that thenever open the equipment:

5.

can use.user

6.

Make sure that no objects or liquids can get into the speaker, as this could cause a short circuit.

7.

Never attempt to make any repairs that are not described in this manual. Contact your authorized

centers or highly qualified personnel when:service

The equipment does not function (or functions in an abnormal way).
The power supply cable has been seriously damaged.
Objects or liquids have got into the equipment.
The equipment has been subject to heavy impact.

8. If the equipment is not to be used for long periods of time, switch it off and disconnect the power
supply cable.

9. If the equipment gives off any strange oder or smoke, switch it off immediately and disconnect the

power from the supply cable.

PRECAUTIONS

Do not obstruct the ventilation grilles of the equipment.
Avoid having the amplifier worked on overload for a long time.
Fully tighten the screw terminals for speakers in order to ensure a safe contact.
Do not force command parts (buttons, controls, etc.).
When cleaning external parts, do not use thinners, spirits, or any other volatile substances.
No naked flame sources, such as lighted candles, should be placed on the apparatus.

DESCRIPTION

The amplifiers in the MA-1212 series have been expressly designed for transmitting announcements

all PA sound systems. They incorporate the following functions:through

10 combination jack (XLR and 6.3mm) inputs, line/micro switchable sensitivity with excludable

phantom supply.

24V dc
2 stereo RCA input, four stage sensitivity selectable.
600 auxiliary signal(Aux. Paging) input.
1 "PRE OUT" output.
1 "MONITOR OUTPUT" and "1W/8 " slave output for monitor music signal.
1 "MAIN IN" input.
Input 1 priority on the other inputs with vocal activation.
Input 1, 2, 3, 4 priority on the other inputs, activation with contact.
Outputs for speakers with constant impedance (4 ohm) and constant voltage (25-70-100 V).
Treble and bass controls.
Protection against short-circuiting between output terminals.
Direct current supply 24 Vdc.

2