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  9. Sonelco P6241 User manual

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.
The diagram shows a mono installation of one channel with 3 amplifiers, 2 of which are connected to 4 P4712 (8"/8 Ohm) loudspeakers, with an output
of 2W per sound point, and a third amplifier with eight P4713 (8"/16 Ohm) loudspeakers, with an output of 1 W per sound point. (See Table)
Note: The control unit could be any one of the Prestige series. Do not forget to set the Mono/Stereo control switch to the Mono position
Fig.2 Fig.3
Rated input voltage (V2): 16V DC
Max. power consumption (I2): 1A
Consumption without signal (I2): 54 mA
Terminal 3 (with J1 bridge cut):
-Min. volt. with power on (V3) >7V.
-Power consumption (13): 1.5 mA.
Output: 8W, d<1%
Sensitivity: 1.5V
Frequency response: 75Hz - 18 Khz (-3dB)
Signal-to-noise ratio: >55 dB
Dimensions: Ø 190 x 41 mm
Weight: 120 gr.
Diagram 2. Installation 1 mono music channel
TECHNICAL SPECIFICATIONS
After installing the amplifiers and loudspeakers, place the as indicated
in the instruction leaflet “Attachment of wall and ceiling loudspeakers”
supplied with the grilles.
The grilles are shown separately, in fig. 2 (P4951-01) and in fig. 3
(P4952-01 and P 4953-11).
GRILLE ASSEMBLY
Por GERARDO fecha 14:21 , 26/03/2008

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