Sonelco P6241 User manual

AMPLIFIER 8 W/2 Ohm - P6241

To be installed on 8" loudspeakers

DESCRIPTION

Amplifier for 8" loudspeakers, which can supply 8W over a load of 2 Ohm. It comes in

the same plastic support as the ceiling units, but without a loudspeaker, so that several

different loudspeaker and power combinations can be created.

The amplifier’s sound level can be controlled by the sensitivity adjustment potentiome-

ter.

As an example, the enclosed table shows some possible combinations and the watts per

sound point that would be obtained.

The amplifier is attached to one of the loudspeakers in order to form a ceiling

speaker-like assembly which can be fitted onto the ceiling. First, the Red and Black

wires are connected to the loudspeaker’s + and - terminals; next, the amplifier is

firmly attached to the loudspeaker magnet with the supplied special adhesive that

is on its inner part. The remaining loudspeakers are to be connected in parallel to

terminalsAand M which are on the connecting strip. The connection of this assembly

is identical to that of a simple ceiling loudspeaker.

a) Installation 1 stereo music channel.

(J1 bridge uncut). Connection to control unit via

three cables (Terminals 3,4 and 05/06).

With this type of connection, all of the amplifier’s power

is obtained through terminal 3 of the control unit, and

it is recommended that a maximum of 2 amplifiers are

connected to the control.

One control can only supply enough power for 2 ampli-

fiers, (estimating that with music + announcements,

the amplifier’s power consumption is only 65% of its

maximum).

The diagram shows an installation of 1 stereo channel

with two amplifiers, one for the right channel and one for

the left, to which two P4711 (8"/4 Ohm) loudspeakers

have been connected, thus obtaining 4W per sound

point, 16 W in total.

Note: The control unit could be any one of the Prestige

series. Do not forget to set the mono/stereo control

switch to the stereo position.

ASSEMBLY

CONNECTION

(*)Note: This amplifier comes with terminals 2 and 3 internally connected via the J1 bridge, which may be optionally cut and allows the possibility of two

methods of connection.

With J1 uncut (see example “a”): the power supply may be connected to either one of the terminals 2 or 3.

With J1 cut (see example “b”): terminal 2 acts as power supply input and 3 as the power on-off control.

1 - Adhesive label to secure assembly to

loudspeaker

2 - Wires for connection to loudspeaker

terminals

3 - Connector strips

4 - Sensitivity adjustment

5 - “J1” bridge. See Note (*) in

“CONNECTION” section

TERMINALS

-terminal 2 – Power supply + 16V

-terminal 3 - Input power supply + 16V. See Note (*)

-terminal 4 - Ground

-terminals 05/06 - Audio input

-terminals A and M - Output for set of loudspeakers to be connected

in parallel.

-Red and black wires - Audio output to be connected to the + and - ter-

minals of the 8"loudspeaker, on top of which the amplifier is placed.

4FA013601

EXAMPLES OF INSTALLATION

Fig.1

Diagram 1 . Installation of 1 stereo music

channel, 4 sound points of 4W each.

These characteristics are only given as reference. The manufacturer reserves the right to introduce any amendments without prior notice in order to improve the product. P6241/ 26-03-08

b)nstallation 1 mono music channel.

(J1 bridge cut). Connection via four wires (Terminals 2, 3, 4 and 05/06).

In the event that with only one control unit, one wishes to operate more sound points, and we need to use more than 2 amplifiers, it would be necessary to

use four wires to connect the amplifier, and we should cut bridge J1 in all the circuits of the amplifiers that we install.(Fig. 1 “CONNECTION” section).

Here, unlike in the previous case, the amplifier’s power input is obtained via wire 2 coming from the control unit, and wire 3 coming from the control unit

acts as the amplifier’s internal electronic control switch. In order to install the amplifiers, one more wire is needed, although with just one control, it is

possible to operate as many amplifiers as wished, depending, that is, on the power of the control unit or power source from where the installation gets

its power supply.