Proel A51T INSTRUCTION MANUAL

A51T

Wall Mount Speaker

USER’S MANUAL

MANUALE D’USO

ENGLISH

ITALIANO

96MAN0140-REV.12/20

DISPOSAL OF OLD ELECTRICAL & ELECTRONIC EQUIPMENT

This marking shown on the product or its literature, indicates
that it should not be disposed with other household wastes at

the end of its working life. To prevent possible harm to the
enviroment or human health from uncontrolled waste disposal, please
separate this from other types of wastes and recycle it responsibly to
promote the sustainable reuse of material resources. Household users
should contact either the retailer where they purchased this product, or
their local government office, for details of where and how they can take
this item for environmentally safe recycling. Business users should
contact their supplier and check the terms an d conditions of the
purchase contract. This product should not be mixed with other
commercial wastes for disposal.

GENERAL SAFETY INSTRUCTIONS

Proel S.p.A. declines any liability for damages to objects or persons
caused by lack of maintenance, improper use, installation not performed
with safety precautions and at the state of the art.

The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the

literature accompanying the appliance.

EN54-24 CERTIFICATION

The product is in compliance with EN54-24:2008 standard.

CE CONFORMITY

The product is in compliance with CE Directive LVD 2014 / 35 / CE as
stated in EN 60065 standard.

TECHNICAL SPECIFICATION

System Type

Wall Mount Speaker

Drivers

1" tweeter
5" woofer

Power Rating @ 8Ω (nominal)

50 W

Rated Noise Power 100h

50 W

Power rating @ 100V

50 / 25 / 12.5 / 6.25 W

Power rating @ 70V

50 / 25 / 12.5 / 6.25 / 3.12 W

Impedance

8 Ω (nominal)
200 / 400 / 800 / 1.6K Ω @ 100V
100 / 200 / 400 / 800 / 1.6K Ω @ 70V

Connector

Ceramic Terminal block

Power selection

Rotary Switch

Measure Environment

Free Field

Frequency Response (-10 dB)

90 - 20k Hz

Sensitivity at 1W (1 kHz, 1m /
4m)

89.6 / 77.6 dB

Sensitivity at 1W (Pink Noise
6dB Crest Factor, 1m / 4m)

86.6 / 74.6 dB

Max SPL (Pink Noise 6dB
Crest Factor, 1m / 4m)

100.4 / 88.4 dB

Coverage Angle at 500 / 1k /
2k / 4k Hz (-6dB)

Hor.: 360° / 180° / 130° / 85°
Vert: 360° / 145° / 85° / 35°

Cabinet

Black (RAL 9011)/White (RAL 9016)

Material

ABS / Aluminium

Environmental Type

B

Protection Degree

IP43C using PG11 glands

Operating Temperature

-25 ÷ +55 °C (-13 ÷ +131 °F)

Relative humidity

<95%

Dimensions (mm)

170 x 245 x 175 (W x H x D)

Mounting

on wall using supplied bracket

Weight

2.3 kg (5.07 lb)

Standard Compliance

EN54-24:2008

Certification

0051-CPR-1996

DESCRIPTION

A51T is a compact, two-way, surface-mount loudspeaker system
designed for constant-voltage or constant-impedance applications. It is
equipped with a 127 mm (5”) woofer and a 1” dome tweeter, able to
provide an excellent speech intelligibility with wide dispersion, together
with a very good background music reproduction.

A51T features a transformer to operate on 100V and 70V constant
voltage systems. In a sealed compartment on the rear panel, together
with the rotary selector for power taps or impedance, it includes, in
compliance with EN 54-24:2008, a ceramic terminal block and a thermal
fuse and it is, therefore, suitable for the use in voice alarm systems.

The ABS cabinet is available in black (A51TB) or white (A51TW) color
finishing, allowing the best décor matching in any environment.

The IP43C environment protection allows the A51T speaker to be
installed both indoors and outdoors.

INSTALLATION INSTRUCTIONS

[1] Separate the bracket parts (B) and (D) removing the screw and the

washers (A). Then mark on the wall the fixing points for the (B)
part (you can refer to the wall drilling template (H)).

[2] Fix the bracket (B) to the wall choosing an appropriate fastening

system for the wall type (no fastening system is provided with the
product – C). For maximum safety, consider that the fastening has
to hold 5 to 10 times the weight of A51T. Note that the slot holes
can accept two 6mm screws or bolts (C).

[3] Assemble the bracket part (D) to the speaker using the (E) screws.
[4] Remove the rear cover (F) and insert the speaker line cables into

the black rubber slots. We suggest to use a proper speaker cable
with two insulated wires in a single jacket, with diameter between
6mm and 12mm.

[5] Connect the speaker line wires to the terminator block (H), taking

care to follow the +/- polarity.

[6] Set the power to be delivered to the speaker using the rotary

switch (I).

WARNING! When the speaker is used in a 100V system, take
special care NOT to set the rotary switch in position 5 (N.C.).
Failure to observe this warning may cause damage to the

product.

[7] Close the rear cover (F) and fix the speaker to the wall, combining

the two bracket parts (B) and (D) with the proper screw and
washers (A).

[8] Aim the speaker to the listening area to be covered, then tighten

the screw (A).