Audiosystem HLC 4 EM User manual

HIGH LOW CONVERTER
MANUAL
HLC 4 EM

hlc 4 em
Congratulation on your purchase of your new z Series Adapter.
- 4-Channel High-Low-Adapter
- 5-Volt preamplifier technology (RCA couplings)
- Automatic detection of SE- or BTL-mode
- Prohibit disturb signal and power up noise
- Advanced speaker load simulation with forward-looking PRS-circuit
- Integrated turn off for Signal Detect (SE)
- Very fast and correct music recognition (SE and BTL-technology)
- Outstanding sound quality
- Connectable to OEM-headunit up to 100 W RMS by HPI-technology
- Generate a turn-on signal(Remote) over BTL or Signal Recognation (SE-circuit)
Important: Your proof of purchase is evidence of warranty claim for repair or replacement. Keep your proof
of purchase, manual and original packaging.
ATTENTION: Use of sound components can impair your ability to hear necessary traffic sounds and may
constitute a hazard while driving your automobile.
Audio System Germany accepts no liability for hearing loss, bodily injury or property
damage as a result of use or misuse of our products.
IMPORTANT: Before installation of your High Low Converter, we recommend to read the owner´s manual
carefully and to follow the instructions regarding connection and fitting exactly.
ATTENTION: Pay attention to advices and instructions of the car manufacturer.
We recommend installing the equipment by an authorized service center or dealer. A professional fitting
and connection is the requirement for further warranty and perfect sound.
features
2
zaccessoires
g) The cables of your HLC 4 Em have to be installed, so that there is no danger of binding, squeezing
or breaking.
b) Protect your HLC 4 Em from fluids, wetness, heat and foreign material as well as from other influences.
d) Never install the power supply cable with other original wires of the vehicle (gas cables), fan motors, brand
control moduls etc.
e) Install the signal cable (cinch cable) as well as the speaker cable far away of the power cables to avoid
troubles with the music signal.
c) The High-Low Adapter is only to be built into vehicles with a 12 V DC power supply.
a) Take care of a professional attachement. Pay attention, that no electrical cable, gas tank, hydraulic breakes
or other components get damaged.
Please follow the instructions during the installation of your High-Low-Adapter:
ATTENTION

ATTENTION:
3. Remote connection
First disconnect the power supply of the vehicle. This works out the best by removing the ground cable of the
battery.
(yellow & black) left,please connect these separately.
1. Battery disconnection
2. Connection
0.5 - 1.5 mm power cable. The amplifier turns on as soon as music signal is generated at the input of the High-
Low Adapter.
Connect the ISO connector to the headunit or to the T-Cable-Set (not included). If there is no connector for power
4. Output
In this regard, AUDIO SYSTEM germany recommends to adjust your amplifier through a
specialized service center, dealer or a specialist.
Connect the REM-terminal (blue) of the HLC 4 em to the remote-input of the amplifier. Therefore use a
The RCA(Cinch)-outputs of the HLC 4 em have to be connected to the RCA(Cinch)-inputs of the amplifier.
Important in this respect is, that first the gain-control of the connected amplifier is put to minimum. Turn up
only if necessary.
3
power connections
zaccessoires
AMPLIFIER
HEAD UNIT (OEM)
Ch1+ Ch1- Ch2+ Ch3- Ch3+ Ch4- Ch4+ Ch2-
3
4
1 3 5 7
8642
1357
8 6 4 2
YELLOW
BLACK
BATTERY +
GROUND -
1
2
3
4

Power Supply Voltage
Signal to Noise Ratio
Frequency Response
Channel Separation
Fuse to use
Maximum Input Voltage
Dimensions
You can adjust the HLC 4 EM to different source power outputs of OEM stereo or OEM amplifier thanks to
HPI-circuit. Position 20 W is suitable for most OEM stereos and most of OEM amplifiers. However, some special
OEM-amplifiers deliver more than 20 W RMS output. You have to switch to 100 W position in this case.
Attention: If you are not sure about output power of you OEM system ask a dealer or specialist, please.
If using signal detection to turn on,HLC 4 EM will switch off remote by a pre-defined time delay. This is
neccessary to avoid switching off in low volume passages in music or speach.
SWITCH-OFF Delay (SE)
The HLC 4 EM uses an advanced speaker load simulation technology called PRS-technology. It is
always present and is for avoiding fault code messages and switch off situations of speakers by OEM stereo
due to error checking techniques of OEM-amplifier.
advanced speaker load simulation
The HLC 4 EM has an automatic signal detection circuit (SE-technology). It is automatically used if
OEM stereo doesn‘t use BTL amplifier topology.
ADJUSTING TO INPUT POWER (HPI)
Position 20 W:
OEM-stereo and OEM-amplifier with up to 20 W maximum
RMS power output.
Position 100W:
OEM-amplifier with up to 100 W maximum RMS power
output.
2x 43(W) x 13(H) x 35(L) mm
100 W RMS
signal detection (SE)
technical data
2x 1A