7
ENGLISH
CH1
CH3
CH5
CH7
CH9
CH11
CH1
CH3
CH5
L
CH2
CH4
CH6
CH8
CH10
CH12
CH2
CH4
CH6
R
LINE OUTPUT
LINE INPUT
AUX
HI.LEVEL
AUX
CLIP
SENSITIVITY
CH1-8
LINE.IN
CH1-6
Max
Min
Max
Min
Max
Min
USB
BT
DRC
COAXIAL
INPUT
OPTICAL
INPUT
HI-LEVEL INPUT
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
+
- +
-
+
- +
-
+
- +
-
+
- +
-
POWER
REVERS REM OUT REM IN +12V
GND
REM SPK
DIGITAL 12-CHANNEL
SIGNAL PROCESSOR
TUNE 12
TURN ON SEL
ELECTRICAL INTERCONNECTION
BEFORE CONNECTING
For the professional installation of a sound system, car audio retail stores offers appropriate wiring kits. Ensure
a sufficient profile section (at least Ø 2,5 mm), a suitable fuse rating and the conductivity of the cables when
you purchase your wiring kit. Clean and remove rust-streaked and oxidized areas on the contact points of the
battery and the ground connection. Make sure that all screws are fixed tight after the installation, because loose
connections cause malfunctions, insufficient power supply or interferences.
POWER
Connect
+12V
with the +12V pole of the vehicle’s battery. Use a suitable cable with a sufficient cross
section (at least Ø 2,5 mm) and install an additional in-line fuse. For safety reasons the distance be-
tween the fuse block and the battery should be shorter than 30 cm. Do not set in the fuse into the fuse
block until the installation is accomplished.
Connect the
GND
terminal (– ground) with a suitable contact ground point on the vehicle’s chassis.
The ground wire must be as short as possible and must be connected to a blank metallic point at the
vehicle’s chassis. Ensure that this ground point has a stable and safe electric connection to the nega-
tive “–”pole of the battery. Check this ground wire from the battery to the ground point if possible and
enforce it, if required. Use a ground wire with a sufficient cross section (at least Ø 2,5 mm) and the
same size like the po power supply wire. This helps reduce most of the interference than can
occur in audio reproduction.
REM IN
is suited to turn on the device if a turn-on signal from the head unit/car stereo is available. The
voltage must be between 3 and 16 VDC. For that the switch TURN ON SEL must be in position REM.
REM OUT
can be used to connect another device such as an amplifier in order to supply it with a
turn-on signal (REM OUT function).
If necessary, you can connect the vehicle’s reverse gear signal to
REVERS
. As soon as a +12 V signal
is present at the connection, the device switches the high level inputs to active. This is useful if you
listen to music via the low level inputs and would like to hear the acoustic warning tones of the parking
assistant via the high level inputs over the sound system, when the reverse gear is engaged.
Make sure the connection polarity is as indicated on the terminals. A misconnection may
result in damage to the device. After applying power, wait about 8 seconds before turning
the device on.
WARNING
1
1
Summary of Contents for TUNE12
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