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HILO.V3
U s e r m a n u a l
General information
Without a power supply, HILO transforms the amplified speaker
driver outputs from your original or aftermarket car radio into a
low-level signal on RCA outputs. It is now possible to connect an
amplifier to any car radio to drastically improve the performance
of its audio system.
If HILO is powered in 12V, in addition to converting the audio signal
it will also generate an automatic remote control output, essential
for powering on and off connected amplifiers.
A HILO converter enables handling of two channels. If you wish to
use two amplifiers, you will need to use two HILO converters.
To transfer the audio signal, there are two possible solutions:
A. Direct connection to the high-level outputs to convert them
into RCA outputs: use this configuration to connect a two-channel
amplifier for front speaker drivers, for example.
B. Parallel connection to front or rear speaker driver wiring
harnesses: This solution is used to pick up the sound signal for an
amplified bass system. This allows you to leave the speaker drivers
connected to the car radio.
Passive connection
This means that you are not supplying electricity to the HILO
converter (+12V). You are only picking up the audio signal from
the speaker driver outputs to transform them into RCA low level
outputs.
This solution is used when the amp does not need a remote control
to power on. This type of amp has an "autopower" function to
power on via sound signal detection.
Left speaker driver cables
Right speaker driver cables
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Left RCA
HILO
Right RCA
HILO.V3
U s e r m a n u a l
Active connection
In this scenario, electricity is supplied to the HILO converter so that
it generates a +12V remote control to power on the amp. The audio
signal is picked up in the same way as in passive mode.
This mode is used for amps with no "auto-power" function that
require a remote control to power on. Since original car radios do
not usually have a +12V remote control, the HILO converter will
generate it.
DC/AUDIO selector
This detection selector allows you to adapt to any original car radio.
- DC: Test this setting first and foremost; if it works perfectly, select
it. It is suitable for most OEM car radios with direct voltage.
- AUDIO: Alternative setting, to be used if the "DC" function does
not work. It is suitable for some car radios without "DC" direct
output voltage (the minority of OEM car radios).
Remote control
and RCA to
be connected
to amplified
HILO
subwoofer
or to amplifier
+12V GND
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