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CONTROLS AND
FUNCTIONS
1)
"POWER" MASTER SWITCH
This switch permits turning the FL18 speaker on and of
f.
2)
"MAINS FUSE" FUSE CARRIER
Mains fuse housing.
3)
"MAINS INPUT" POWER SOCKET
For connecting the power cable provided.
The connector used for mains connection is a POWER CON® (blue)
4)
“MAINS OUTPUT LINK” RELAUNCH POWER SOCKET
For relaunching the mains power
. The output is connected in p
arallel with input (3)
and can be used to power another amplified speaker
.
The connector uses a POWER CON® (grey)
5)
COOLING GRILLE
These grilles permit cooling the amplifier during operation. Do not block accesses
and clean the grilles whenever necessary to ensure correct air circulation.
The grille on the bottom part of the amplifier features an air filter that can be
removed and cleaned.
6)
" BALANCED INPUT” INPUT CONNECTORS (LEFT - RIGHT)
Balanced inputs for connecting balanced or unbalanced audio sources at level
0dBu.
The connectors are able to accept "XLR" sockets or 1/4" Jacks (6.3 mm).
7)
"BALANCED LINK” OUTPUT CONNECTORS (LEFT - RIGHT)
The “XLR” connectors connected in parallel with the inputs (6) can be used to send
input audio signals to other amplified speakers.
8)
”BALANCED XOVER OUTPUTS” OUTPUT CONNECTOR (LEFT - RIGHT)
Internal crossover balanced outputs.
These signals must be sent to other OPERA type amplified speakers.
The crossover frequency can be selected by means of the “XOVER SET” switch (9).
9)
“XOVER SET” CROSSOVER FREQUENCY SWITCH
This 3-position switch permits selecting the crossover frequency between the
subwoofer and the speakers connected to the XOVER outputs. Choice depends on
the type of speaker used for reproduction of mid-high frequencies.
For speakers with 12” cones, it is best to use 100Hz or 120Hz, while with 15”
speakers, 80Hz or 100Hz.
10)
“SUB LEVEL” VOLUME CONTROL
This control regulates only the volume of the subwoofer. The double indication 0dB
(mono-stereo) facilitates balancing between the subwoofer and the satellites in the
stereo/mono configuration.
11)
“SUB PHASE” SWITCH
This two-position switch permits turning the audio signal reproduced by the
subwoofer by 180°.
Rotation makes it easier to optimise the reproduction of the low frequencies even in
the most difficult installation situations. After completing installation, play a piece of
music and move the switch to achieve the best sound reproduction at low
frequencies.
12)
“POWER” INDICATOR LIGHT
This indicator comes on green to indicate that the main power voltage is correct. In
normal operating conditions, the LED is on; if it flashes or is off, refer to the
diagnostics table to check amplifier status.
AMPLIFIER PANEL (FIG. 1)
TECHNICAL SPECIFICATION
TECHNICAL DETAIL
System
BAND PASS Active
Type of amplifier
class H
RMS power
800W
Frequency response
40-120Hz
Crossover
Sound pressure (SPL)
133 peak
Component parts
1 woofer 15”
Input sensitivity
0 dBu (max)
Impedance input
Balanced
20Kohm
Unbalanced
Speaker shape
rectangular
Dimension [LxHxP]
430x600x600mm
Weight
32Kg
80Hz -100HZ - 120Hz
12dB/oct
3” coil - aluminium basket
10Kohm
Power supply
As indicated on rear panel
DIMENSIONI
430mm
6
0
0
m
m
B
d
600mm
13)
“STATUS” INDICATOR LIGHT
This yellow indicator indicates amplifier status. In normal operating conditions, the
LED is off; if it flashes or is always on, refer to the diagnostics table to check
amplifier status.
14)
“SIGNAL” INDICATOR LIGHT
This indicator comes on green to indicate the presence of the audio signal (at a level
of -20dB).
15)
“LIMITER” INDICATOR LIGHT
This indicator comes on red to indicate that the internal limiter circuit has tripped.
This prevents amplifier distortion and protects the speakers against overloads.
Summary of Contents for OPERA SUB 15
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