Power Control - VINCENT SP-995 Instructions For Use Manual

CONNECTING THE PREAMPLIFIER
This main amplifier is equipped with a mono audio input "LINE IN" (6) on which the unit awaits the pream-
plified signal of an audio channel (for example "PRE OUT R" or "Front R"). This is the audio information that
the SP-995 provides for one or two loudspeakers. This audio input is equipped with two connectors with
Please note:
No source with a standard line level signal ("LINE OUT") must be connected to this input. It is only
intended for preamplified signals (e.g. "PRE OUT").
which the preamplifier can be connected as desired by means of either the RCA or XLR connection on the
SP-995. If your preamplifier offers both options, XLR is preferable. Only one of the two connectors may be
used at any given time. The setting of the switch "XLR/RCA" determines which connector is currently used as
the input. If the preamplifier is connected with an RCA cable, then the setting "XLR IN" (4) must be switched
off (LED is not lit). If the preamplifier is connected with an XLR cable, then the setting "XLR IN" must be swit-
ched on (LED is lit).
Connect the selected audio input connector to the output connector ("PRE OUTPUT" or "OUTPUT") of a pre-
amplifier. If the SP-995 is to supply one channel of a stereo system, connect the input connector of the SP-
995 with a preamplifier output socket that is usually labelled "PRE OUT R" or "PRE OUT L".
Summarizing, you will use an RCA connection and/or an XLR connection:
SP-995
SP-995
Both "LINE IN" inputs can be connected to preamplifiers at the same time and in this way it is possible to
connect two preamplifiers simultaneously and toggle between the desired "LINE IN" modes. Ensure the
volume of the respective preamplifier is not set too high before switching on.
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1 2 BALANCE
Preamplifier
OUTPUT
RCA connection
1 2 BALANCE
Preamplifier
OUTPUT
XLR connection
CONNECTIONS FOR THE STANDBY CONTROL

(POWER CONTROL)

Many AV-Systems consist of a multitude of individual components. To avoid the necessity of switching them on
and off before and after every use, many manufacturers have equipped their devices with what is known as
"POWER CONTROL" circuit or "TRIGGER". This kind of remote-controlled standby circuit is used primarily for
preamplifier and power amplifiers. Particularly for preamplifiers and main amplifiers this kind of remote stand-
by control is utilized, as power amplifiers are often placed far from other devices near the speakers. To employ
these functions, direct or indirect cable connections must be made between the preamplifier (or integrated
amplifier) and all the devices which support this function. The "POWER CONTROL" function operates in such
a way that each switching on or off of one device in the system (usually the preamplifier) automatically brings
about the switching on or off of all the connected devices which support this function. Please keep in mind that
all devices which respond to the power control are not disconnected from the mains network when switched
off. They are set to a standby state instead. For connecting cables, two-core cables with 3.5 mm jack plugs
(mono) are used. For each connection between two devices one of those cables is needed.
If the SP-995 main amplifier is to be switched on/off automatically with the preamplifier, then the cable con-
nections for power control described below must be made correctly. If you don't wish to use this function or if
the other components do not support it, all you have to do is leave out these cable connections.
The SP-995 is equipped with one input connector and one output connector for the power control. In this way
it can respond to the signal of a different unit and relay the signal to further components of a system, if requi-
red. All other HiFi components that accept power control signals are equipped with one power control input
as well as one power control output in the same fashion. Thus, in theory it is possible to provide an infinite
number of HiFi components with the power control signal. This approach, to loop a signal through a chain of
components, is commonly referred to as "daisy chaining".
Connect a "POWER CONTROL OUTPUT" or "TRIGGER OUTPUT" of the controlling or relaying unit with the
SP-995 input ("IN"). If the "POWER CONTROL" cable is connected to this device, the second jack connector
serves to pass on the switch signal (for example to the main amplifier of the other channel) or it remains free.
This main amplifier cannot generate the switching signal for other components on its own!
power control cable
Preamplifier
Attention:
Many devices which can be controlled by a switching
signal (not preamplifiers or integrated amplifiers),
have two terminals which do not differentiate between
input and output. In this case either of the two can be
selected. Even some devices that transmit the switch
signal (preamplifiers and integrated preamplifiers)
lack this marking. In this case it may be assumed that
they both are signal outputs.
SP-995 z.B. 2. SP-995
"POWER CONTROL" sockets of preamplifiers or integrated
amplifiers must not be interconnected! All receiving devices must
not be connected to more than one preamplifier or integrated
amplifier (directly or indirectly)!
As soon as a power control cable is connected to one of the
"POWER CONTROL" inputs, this main amplifier cannot be
turned on or off via the "POWER" button, even if the
"POWER CONTROL" cable is only connected to the SP-995
and not to another device on the other side of the cable.
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