A.E.B. L160D Посібник користувача - Сторінка 2
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Друкувати сторінкуDESCRIPTION
The L160D speaker uses a digital amplifier of last
generation with total power to 160W.
This highly efficient amplifier provides high power with
limited weight and dimension. Thanks to the low power
dissipated, the cooling of the amplifier module does not
require a fan.
The digital preamplifier with DSP (Digital Signal
Processing) controls the audio crossover of the acoustic
components, the frequency response, the limiter, and the
phase alignment.
The correct switch on of the amplifier is guaranteed by an
initialization procedure; during this test stage the LEDs
("LIMITER" and "ON/SIGNAL"), located on the amplifier
module, stay on together for approx. 2 sec.
At the end of the switch on procedure, on the amplifier
module, the "ON/SIGNAL" green LED flashes slowly,
when there is signal absence.
During normal operation the "ON/SIGNAL" green LED serves as Vu-meter monitoring the
audio level reproduced.
The "LIMITER" red LED lights up to indicate that the internal limiter circuit has tripped to
prevent amplifier distortion and protects the speakers against overloads.
Thermal control is provided by the internal DSP, by means of one sensor, controls the
temperature of the amplifier, avoiding overheating by limiting the overall volume.
In case of overheating (> 90°C) the volume decreases proportionally to the temperature
increase, making the change unnoticeable.
The correct volume and all the functions are automatically restored when standard
operating temperatures are reached.
The speaker is equipped with 5" woofer with dome tweeter (coaxial - voice coil 1") and 5"
woofer (voice coil 1")
COMMANDS AND FUNCTIONS (FIG. 1)
1)
" BALANCED INPUT" (XLR) and " LINK" (JACK 6,3mm) CONNECTORS
These balanced inputs can be used to connect balanced or unbalanced
microphones or audio sources at line level (0dB) (eg. preamplifier, mixer, recorder,
CD player, musical instrument, ...).
The balanced connector is connected in parallel and can be used to send the audio
signal to other amplified speakers, recorders or supplementary amplifiers.
2)
"INPUT SENS" SWITCH
Position the switch in LINE to use a line level source (0 dB) or MIC to use a
microphone.
3)
EQUALIZATION "DSP SETUP" SELECTOR
This control enables to select the suitable equalization for loudspeaker use.
4)
"VOLUME" CONTROL
The knob regulates the speaker´s volume.
This control does not affect the output "LINK" levels.
5)
"LIMITER" INDICATOR LIGHT
This indicator shows red to indicate that the internal limiter circuit has tripped.
This prevents amplifier distortion and protects the speakers against overloads.
6)
"ON SIGNAL"INDICATOR LIGHT
This indicator light comes on green to indicate that the amplifier is switched on and it
is working properly. The "ON SIGNAL" green LED flashes slowly, when there is
signal absence. During normal operation the LED serves as Vu-meter monitoring
the audio level reproduced.
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