Proel ACDT90 User Manual

INSTRUCTION MANUAL

PA Combo Amplifier

ACDT90

1. IMPORTANT SAFETY INSTRUCTIONS

CAUTION: To reduce the risk of electric shock do not remove cover (or back panel). No

WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to

This symbol is intended to alert the user of the presence of uninsulated

This symbol is intended to alert the user of the presence of important operating

INSTRUCTIONS:

All safety and operating instructions should be read before the product is operated.

Retain these instructions:

All safety and operating instructions should be retained for future reference.
This owner’s manual should be considered as a part of the product and it must accompany it
every time, and delivered to the new user when this product is sold. In this way the new owner will
be aware of all the installations, operating and safety instructions.

Heed all warnings:

All warnings on the product and in owner’s manual should be adhered to.
Heed all warnings.

Follow all instructions:

All operating and user’s instructions must be followed.

user serviceable parts inside. Refer servicing to qualified personnel only.

rain or moisture.

dangerous voltage within the product enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to persons.

and maintenance (servicing) instruction in the literature accompanying the
appliance. Please carefully read the owner’s manual.

Sentences preceded by symbol contain important safety instruction. Please read it carefully.

DETAILED SAFETY INSTRUCTIONS.

Water and moisture:

This apparatus should not be used near water (i.e. bathtub, kitchen sink, swimming pools,
etc.)

Ventilation:

This apparatus should be placed in a position that doesn’t interfere with correct ventilation.
This unit, for example, should not be placed on a bed, sofa cover o similar surfaces that could
cover ventilation openings, or placed in a built-in installation, such a bookcase or a cabinet
that could block air flow trough ventilation openings.

Heat:

This apparatus should be placed away from heat sources, like radiators, heat registers, stoves
or other products (including amplifiers) that produce heat.

Power sources:

• This apparatus should be connected only to power source type specified in this owner’s
manual or on the unit.

• If the supplied AC power cable plug is different from the wall socket, please contact an
electrician to change the AC power plug.

Grounding or Polarization:

• All precautions must be observed in order to avoid grounding or polarization defeating.

• Unit metal parts are grounded through the AC power cord.

• If the AC power outlet doesn’t have grounding, consult an electrician for outlet grounding.

Power cord protection:

The power cord should be routed in a way it will not be walked on or pinched by items placed
upon or against it, paying particular attention to cords at plugs, convenience receptacles and
wall outlet.

Cleaning:

• You can clean the unit with a compressed air flow or a wet cloth.

• Don’t clean the unit using solvents like trichloroethylene, thinners, alcohol, or other fluids

with very strong volatility and flammability.

Non use periods:

The unit AC power cord should be unplugged from the outlet if it’s unused for a long period.

Objects or liquid entry inside the unit:

Be careful that no objects fall or liquid is spilled inside the unit through ventilation openings.

Safe power line use:

• Keep firmly the plug and the wall outlet while disconnecting the unit from AC power.

• If the unit will not be used for a long period of time, please unplug the power cord from AC

power outlet.

• In order to avoid unit power cord damages, please don’t strain the AC power cable and
don’t bundle it.

• In order to avoid unit power cord damages, please be sure that the power cord is not
walked on or pinched by heavy objects.

Unit relocation:

Before any unit relocation please control the unit is turned off. The power cord must be
unplugged by the wall outlet, and all the connections wires should be disconnected as well.

Don’t open this unit:

Don’t attempt to open or to repair this unit by yourself. For any problem solution not described
in this owner’s manual, please refer to qualified personnel only or consult us or your National
Distributor. Any improper operation could result in fire or electric shock.

Damages requiring services:

• Don’t attempt to do operations not described in this user’s manual.

• In the following cases please refer to an authorized maintenance center or skilled

personnel:

- When the unit works improperly or it doesn’t work at all.

- If power cord or plug are damaged.

- If liquid has spilled, or objects have fallen into the unit.

- The unit has been exposed to rain.

- The unit doesn’t operate normally or it exhibits a marked change in performance.

- If the product has dropped or it has been damaged in any way.

Maintenance:

The user shouldn’t attempt maintenance operation not described in this user’s manual. Every
maintenance operation should be done by qualified personnel only.

IMPORTANT SAFETY INSTRUCTIONS:

• Install this unit following owner’s manual instructions.

• Don’t install, connect or disconnect power supply when the unit is powered, otherwise

there’s an high risk of electric shock.

• Don’t open the unit, there are no user serviceable parts inside.

• If you detect a particular smell from the unit, please immediately turn it off and disconnect

the AC power cord.

• Don’t block the unit ventilation openings.

• Avoid using this unit in overload for a long period.

• Don’t force commands (switches, controls, etc.)

• To obtain good speakers wire contacts, please tighten the screw terminals firmly.

•

For safety reason, don’t defeat the grounding connection. Grounding is useful for user

safety.

• Use only manufacturers suggested connectors and accessories.

• This unit should be placed in a rack (see INSTALLATION) and kept far from:

 Wet places
 Direct exposure to heat sources (like sun light)

 Non properly ventilated places

• Disconnect the power cord during storms or when the unit is not used.

•

In order to prevent fire and electric shock risks, it’s necessary to keep the unit far
from sprinkling and drops. Please don’t put cups, vases or other object containing liquids
over the unit. In case of interferences from source signal, THD value will raise over 10%.
Don’t place this unit in a bookshelf o in other places with small room.

• PROEL S.P.A. is not responsible for any damage that occurs due to a wrong unit
installation.

Thank you for choosing one of Proel products, and for your confidence towards
our brand, synonymous of professionalism, accuracy, high quality and reliability.
All our products are CE approved and designed for continuous use in
professional installation systems.

2. D ESCRIPTION

This unit is designed for speech, music, paging and sound reinforcement
applications.

FEATURES

• State-of-the-art design and manufacturing accuracy.

• Wide frequency response: 50 Hz – 18KHz.

• Low distortion and low noise level.

• Digital AM FM tuner, with 5 memories for each band, and CD

player sections built-in. Each section has its own independent
power switch and volume control.

• Bass and Treble tone controls.

• LED level indicator.

• Two unbalanced microphone inputs, for dynamic microphones,

and one unbalanced switchable Microphone/Aux input.

• Four outputs – one constant impedance outputs (4Ω) – three
constant voltage outputs (25 V, 70 V, and 100 V).

• 24 V DC emergency power.

• Protection circuits.