Aura RHL-LD03 User manual

PLEASE READ THESE INSTRUCTIONS CAREFULLY
BEFORE INSTALLING AND OPERATING THE DEVICE
Make sure you choose a suitable place to install the device. The installation site must be dry,
with good air circulation, and secure for anchoring.
Summing input signals
RHL-LD03
OWNER’S MANUAL
AUTOMOTIVE PREAMPLIFIER-CONVERTER
WARNING
Due to continuous product development and improvement, all specifications are subject to change without
notice.
©2018 AURA Electronics Ins. All rights reserved.
www.aurael.ru
Signal to noise ratio:
Frequency range:
Maximum output voltage:
Coef. nonlinear distortion:
Input Sensitivity:
Input Sensitivity:
Input Impedance:
Working voltage:
Device dimensions:
>80dB (IHF, A-weighting)
20Hz-20kHz (±3dB)
7V
<0.05%
2V (RCA input)
10V (high level)
10 kOhm
10.5 - 16V negative ground
148.5x121.0x25.0mm
Technical features
In this mode it is necessary to switch the output signal selector to the right (HPF / LPF).
See the wiring diagram on the device.
When using the device in normal full range mode, the selector selector should be in the
far left position.
If it is impossible to receive a signal in the full frequency range in a car, i.e., there are
only separated signals of the LF and HF range, then the function of summing the input
signals allows to combine at the output of the device and obtain a signal in the full
frequency range for its further processing and use.

Connection recommendations
The device turns on when + 12V is supplied to the “REM” terminal (when connected via RCA
inputs). An acceptable wire is 18-16AWG (0.75-1.5mm2). The standard color of the control
cable is blue. Or it turns on automatically (by signal) if connected via a high-level input (from
the speaker systems of the head unit).
Connect the positive (+ 12V) cable only after all other cables have been connected. The
negative cable must be connected to the vehicle body exclusively by bolting. The connection
point must be free of paint and reliably protected from corrosion. Loose power connections
can lead to instability and malfunction of the device.
1. Increase the level on the source gradually until distortion is audible. Then turn the control
back a little until the audible distortion disappears.
2. Gradually increase the output level of the RHL-LD01 until distortion is audible. Then turn
the control back a little until the audible distortion disappears.
After turning on the device:
Before turning on the device: Turn all signal level controls on the device to the minimum
position. Set the volume control on the head unit (source) to the minimum position.
Introduction
We strongly recommend using the services of a professional installation studio to
install the device. The correct configuration of the system and the qualifications of
specialists will allow you to maximize the potential of your device, avoid unpleasant
situations, as well as exclude connection errors and possible malfunctions.
Thank you for purchasing a brand device
Connection
Main functions
Preamplifier with 5 output channels, including 2 subwoofer channels.
Nickel plated RCA connectors.
Control signal to output when connected at high level (auto on).
Control signal to the input when connected at low (RCA) level.
4 channel RCA input or 4 channel high level input.
Active input level control.
Channel-by-channel regulator of output signal level up to 7 volts.
Low distortion and no noise in the signal.
Connection panel
5. REAR. RCA INPUT RIGHT
7. POWER ON INDICATOR
4. REAR. RCA INPUT LEFT
1. FRONT. HIGH LEVEL INPUT
2. FRONT. RCA INPUT LEFT
3. FRONT. RCA INPUT RIGHT
6. REAR. HIGH LEVEL INPUT
connection from the speaker output of the head unit.
connection from RCA output of head unit or other source.
shows device status on / off
connection from RCA output of head unit or other source.
connection from RCA output of head unit or other source.
connection from RCA output of head unit or other source.
connection from the speaker output of the head unit.
Configuration recommendations
RHL-LD03
Class AB MOSFET Car Amplifier AMP-4.60
AMH-510BT
MIC
MODE
Class AB MOSFET Car Amplifier AMP-2.80
FRONT SPEAKER
LEFT
FRONT SPEAKER
RIGHT
REAR SPEAKER
LEFT
REAR SPEAKER
RIGHT
4 CHANNEL
AMPLIFIER
2 CHANNEL
AMPLIFIER
SUBWOOFER
HEAD UNIT
REAR SPEAKER INPUT
FRONT SPEAKER INPUT
FRONT RCA INPUT
REAR RCA INPUT
FRONT RCA OUTPUT
REAR RCA OUTPUT
SUBWOOFER RCA OUTPUT
2