Audio Design HIFONICS HF-SC4 Kurzanleitung Seite 2

4-CHANNEL SIGNAL CONVERTER
INTENDED USE
This device is only suitable for use in vehicles with + 12V power supply and negative ground. The device is used to convert the high-level signals from the loudspeaker outputs of a head unit / car radio
into preamplifier signals (low-level signals) so that these can be used on other audio devices such as amplifiers or processors.
INSTALLATION INSTRUCTIONS
To be on the safe side, disconnect the ground terminal of your vehicle battery before installing the device in order to avoid short circuits and electric shocks. Make sure that the device is securely
attached and that no important components of the vehicle are damaged during installation.
When connecting, please ensure that all connections have the correct polarity!
Speaker Inputs
Channel 1/4
High Level Signal (until 10V/RMS)
Connect the loudspeaker cable from the head
unit / car radio to the enclosed cable connector.
Turn-On Options
DC
Automatically via the DC offset of
the head unit / car radio
VOX Automatically via signal detection
REM IN Via the connected turn-on signal of
the head unit / car radio
Power Supply
Turn-on Signal
Connect the cables accordingly to the enclosed
cable connector.
REM OUT Turn-on signal output of the
generated turn-on signal for other
devices such as amps or processors.
REM IN
Turn-on signal of the
head unit / car radio
+12V +12 volt power connection:
The positive +12 V cable MUST
be secured with a separate 3A
cable fuse.
GND Ground connection:
Connect this to a suitable ground
point in the vehicle.
JUMPER FOR FLOATING GROUND
If you unexpectedly hear interference from the alternator, you can disconnect the connected ground of the vehicle from the pre-amplifier signal.
To do this, first disconnect the power supply cable plug from the device and then carefully open the housing using a suitable tool.
There is a small jumper inside the device at the bottom right. Carefully pull out the jumper with a pair of pliers and insert it in the OFF position.
This creates a floating ground.
Then reassemble the housing and reconnect the device for operation.
Am Breilingsweg 3 · D-76709 Kronau/Germany · Tel. +49 7253 - 9465-0 · Fax +49 7253 - 946510
www.audiodesign.de · www.hifonics.de · © Audio Design GmbH, All Rights Reserved
HF-SC4
POWER LED
If this lights up, the device is ready for use.
DIRECT / MIXED SWITCH
Here you can specify whether the input
signals from channels 1/3 and 2/4 should
be processed directly (DIRECT) to the
respective preamp outputs or whether a
stereo composite signal (MIXED) is to
be formed from it. The sum signal is through
Addition of the two respective channels
(e.g. high and mid-bass signal), which
generates a full-fledged audio signal.
This is useful, for example, if the
loudspeaker signals of a 2-way loudspeaker
system in a factory system are to be used.
Pre-amplifier Outputs
Channel 1 - 4
Low Level Signal
Connect here the audio cables (RCA)
accordingly, which you then connect to
the preamplifier inputs of the amplifier or
processor that you want to control.
EPS Protection Circuit
The high level signal inputs are equipped
with the "Error Protection System" (EPS)
so that no functions are impaired or error
messages are written to the vehicle memory
when connected to OEM factory radios.
OFF ON