DAPAudio MPA-440 Product Manual

MPA-440

ORDERCODE D6120

Congratulations!

You have bought a great, innovative product from DAP Audio.
The DAP Audio MPA Series bring excitement to any venue. Whether you want simple plug-&-play action
or a sophisticated show, this product provides the effect you need.

You can rely on DAP Audio, for more excellent audio products.
We design and manufacture professional audio equipment for the entertainment industry.
New products are being launched regularly. We work hard to keep you, our customer, satisfied.

You can get some of the best quality, best priced products on the market from DAP Audio.
So next time, turn to DAP Audio for more great audio equipment.
Always get the best -- with DAP Audio !

Thank you!

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DAP Audio

DAP Audio MPA-440 Product Guide

Warning.................................................................................................................................................................

Safety-instructions............................................................................................................................................

Operating Determinations..............................................................................................................................

Description.............................................................................................................................................................

Features.............................................................................................................................................................

Overview Front panel......................................................................................................................................

Overview Back panel......................................................................................................................................

Operation...............................................................................................................................................................

Setup Example......................................................................................................................................................

Connection Cables...............................................................................................................................................

Maintenance.........................................................................................................................................................

Troubleshooting.....................................................................................................................................................

Product Specifications..........................................................................................................................................

2

WARNING

CAUTION!

Keep this system away from rain and moisture!

CAUTION! Be careful with your operations.

With a dangerous voltage you can suffer

a dangerous electric shock when touching the wires!

FOR YOUR OWN SAFETY, PLEASE READ THIS USER MANUAL CAREFULLY

BEFORE YOUR INITIAL START-UP!

SAFETY INSTRUCTIONS

Every person involved with the installation, operation and maintenance of this system have to:

- be qualified

- follow the instructions of this manual

Before you initial start-up, please make sure that there is no damage caused by transportation. Should
there be any, consult your dealer and do not use the system.

To maintain perfect condition and to ensure a safe operation, it is absolutely necessary for the user to
follow the safety instructions and warning notes written in this manual.

Please consider that damages caused by manual modifications to the system are not subject to
warranty.

This system contains no user-serviceable parts. Refer servicing to qualified technicians only.

IMPORTANT:

The manufacturer will not accept liability for any resulting damages caused by the non­observance of this manual or any unauthorized modification to the system.

Never let the power-cord come into contact with other cables! Handle the power-cord and all

connections with the mains with particular caution!

Never remove warning or informative labels from the unit.
Never use anything to cover the ground contact.
Do not insert objects into air vents.
Do not connect this system to a dimmerpack.
Do not switch the system on and off in short intervals, as this would reduce the system’s life.
Do not open the device and do not modify the device.
Do not open this device. Risk: hazardous radiation exposure.
Only use system indoor, avoid contact with water or other liquids.
Avoid flames and do not put close to flammable liquids or gases.
Always disconnect power from the mains, when system is not used. Only handle the power-cord

by the plug. Never pull out the plug by tugging the power-cord.

Make sure you don’t use the wrong kind of cables or defective cables.
Make sure that the signals into the mixer are balanced, otherwise hum could be created.
Make sure you use DI boxes to balance unbalanced signals; All incoming signals should be clear.
Make sure that the available voltage is not higher than stated on the rear panel.
Make sure that the power-cord is never crimped or damaged. Check the system and the power-

cord from time to time.

3

Make sure that the amplifier is turned down, before turning the power on or off. So you can avoid

supersonic frequencies, which could damage your speakers.

Don't put your equipment next to TV, radio, etc., because of interference or distortion.
If you connect other parts of the system, be careful of ground loops.
The best way to avoid ground loops is connecting the electrical system ground to one central

point ("star" system). In this case the mixer can act as a central point.

Before changing the ground, always turn off your amplifier.
Please read this manual carefully and keep it for future reference. Remember that the amplifier

has a better value on the market, if you save the carton and all packing materials.

Always operate the unit with the AC ground wire connected to the electrical system ground.
Connecting amplifier outputs to oscilloscopes or other test equipment, while the amplifier is in

bridged mode, may damage both the amplifier and test equipment.

Do not drive the inputs with a signal level bigger, than required to drive the equipment to full

output.

In system setup, the amplifier's output power must be 50%-100% more than the loaded

loudspeakers rated power.

Please turn off the power switch, when changing the power cord or signal cable, or select the

input mode switch.

In typical use, please set the volume at 0dB position.
Sometimes, when you want to send one signal to more than one amplifier, you should use a signal

distributor.

If your Dap Audio device fails to work properly, discontinue use immediately. Pack the unit

securely (preferably in the original packing material), and return it to your Dap Audio dealer for
service.

Allow time to cool down, before cleaning or servicing.
For replacement use fuses of same type and rating only.
Prevent distortion! Make sure that all components connected to the device have sufficient power

ratings. Otherwise distortion will be generated because the components are operated at their
limits.

Avoid ground loops! Always be sure to connect the power amps and the mixing console to the

same electrical circuit to ensure the same phase!

If system is dropped or struck, disconnect mains power supply immediately. Have a qualified

engineer inspect for safety before operating.

If the system has been exposed to drastic temperature fluctuation (e.g. after transportation), do

not switch it on immediately. The arising condensation water might damage your system. Leave
the system switched off until it has reached room temperature.

This device falls under protection class I. Therefore it is essential to connect the yellow/green

conductor to earth.

Repairs, servicing and electric connection must be carried out by a qualified technician.
WARRANTY: Till one year after date of purchase.

OPERATING DETERMINATIONS

If this system is operated in any other way, than the one described in this manual, the product may suffer
damages and the warranty becomes void.
Any other operation may lead to dangers like short-circuit, burns, electric shock, etc.

You endanger your own safety and the safety of others!

Improper installation can cause serious damage to people and property !