AUDIO SYSTEM HLC 4 EM High Low Converter Adapter Instruction Manual
- June 13, 2024
- AUDIO SYSTEM
Table of Contents
AUDIO SYSTEM HLC 4 EM High Low Converter Adapter
Product Information
The z Series Adapter, also known as the High Low Converter (HLC) 4 EM, is a device designed to convert the high-level speaker outputs of a vehicle’s OEM stereo or amplifier to low-level RCA outputs. This allows for the connection of an aftermarket amplifier and speakers to the existing audio system. The HLC 4 EM is equipped with various features including signal detection, switch-off delay, and advanced speaker load simulation.
Features
- Professional attachment for installation
- Protection against fluids, wetness, heat, and foreign materials
- Compatible with vehicles with a 12V DC power supply
- Separate installation of power supply cable to avoid interference
- No danger of binding, squeezing, or breaking of cables
- Adjustable input power settings (20W or 100W)
- Automatic signal detection circuit
- Switch-off delay to prevent premature switching off
- Advanced speaker load simulation for error-free operation
Features
Congratulation on your purchase of your new z Series Adapter.
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.
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.
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.
HLC 4 EM
- 4-Channel High-Low-Adapter
- Connectable to OEM-headunit up to 100 W RMS by HPI-technology
- Prohibit disturb signal and power up noise
- Generate a turn-on signal(Remote) over BTL or Signal Recognation (SE-circuit)
- Integrated turn off for Signal Detect (SE)
- Outstanding sound quality
- 5-Volt preamplifier technology (RCA couplings)
- Automatic detection of SE- or BTL-mode
- Very fast and correct music recognition (SE and BTL-technology)
- Advanced speaker load simulation with forward- looking PRS-circuit
ATTENTION
- Please follow the instructions during the installation of your High-Low-Adapter:
- Take care of a professional attachment. Pay attention, that no electrical cable, gas tank, hydraulic breakes or other components get damaged.
- Protect your HLC 4 EM from fluids, wetness, heat and foreign material as well as from other influences.
- The High-Low Adapter is only to be built into vehicles with a 12 V DC power supply.
- Never install the power supply cable with other original wires of the vehicle (gas cables), fan motors, brand control moduls etc.
- 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.
- The cables of your HLC Ч EM have to be installed, so that there is no danger of binding, squeezing or breaking.
Power Connections
ATTENTION
- Battery disconnection
- First disconnect the power supply of the vehicle. This works out the best by removing the ground cable of the battery.
- Connection
- Connect the ISO connector to the headunit or to the T-Cable-Set (not included). If there is no connector for power (yellow & black) left, please connect these separately.
- Remote connection
- Connect the REM-terminal (blue) of the HLC Ч M to the remote-input of the amplifier. Therefore use a 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.
- Output
- The RCA(Cinch)-outputs of the ILC 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.
In this regard, AUDIO SYSTEM GERMANY recommends to adjust your amplifier through a specialized service center, dealer or a specialist.
ADJUSTING TO INPUT POWER
ADJUSTING TO INPUT POWER (HPI)
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.
Signal Detection (SE)
- 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.
SWITCH-OFF Delay (SE)
- 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.
Advanced Speaker Load Simulation
- 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.
Technical Data
- Power Supply Voltage: 10 – 16 V
- Signal to Noise Ratio: >95 dB
- Frequency Response: 10 Hz ~ 50 KHz (+/-1 dB)
- Channel Separation: 75 dB
- Fuse to use: 2x 1A
- Maximum Input Voltage: 100 W RMS
- Dimensions: 2x 43(W) × 13(H) x 35(L) mm
DESIGNED AND ENGINEERED BY AUDIO SYSTEM GERMANY
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AUDIO SYSTEM HLC 4 EM High Low Converter
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[pdf] Instruction Manual
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Converter Adapter, Converter Adapter, Adapter
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