AURA INDIGO-4.80 4 Channel Stereo Power Amplifier User Manual
- June 1, 2024
- Aura
Table of Contents
AURA INDIGO-4.80 4 Channel Stereo Power Amplifier User Manual
Congratulations and thank you for purchasing AurA INDIGO series amplifiers,
the logical choice in mobile audio amplification. Your amplifiers have been
designed and engineered with the highest quality components and top of the
line workmanship to help you reach the superior sound you are after.
To achieve optimal performance of your system, please take a few moments to
read over this Owner’s manual or visit authorised dealer if needed before
starting your installation.
FEATURES
- STABLE INTO 2 OHM LOAD
- HIGH SPEED SAMOSET POWER SUPPLY
- EFFECTIVE PROTECTION
- HI-LEVEL INPUT
- BASS BOOST
- 12dB/OCT VARIABLE LOW PASS FILTER
- 12dB/OCT VARIABLE HIGH PASS FILTER
- REMOTE CONTROL (OPTIONAL)
SPECIFICATIONS
RMS power (4 Ohm): 80w x 4
RMS power (2 Ohm): 120w x 4
RMS power (4 Ohm) bridged: 250w x 1 (3/4 channel bridged)
Working Impedance: 2/4
Input Sensitivity: 8V-0.2 V
Low Pass Filter (3/4 channel): 50 Hz-250 Hz
Hi Pass Filter : 60 Hz-6 kHz
Frequency Response: 10 Hz-30 kHz
Signal to Noise Ratio : >90 dB
THD : < 0.1%
Working voltage: 9V-16V
Dimensions (mm): 320 x 190 x 54
All features are subject to change in the continuing effort to improve the products without notice.
POWER CONNECTION
BATT (12V POWER)
Before mounting amplifiers, disconnect the negative cable from the battery to
protect any accidental damage to your amplifiers and audio system.
Connect the power cable to power terminal +12V.
All AurA INDIGO series amplifiers are equipped with fuses, but external fuses
also should be used.
Connect one end of fuse holder to the power cable going into the amplifiers
and the other end of fuse holder to positive battery. This fuse location will
protect the system and the vehicle against the possibility of a short circuit
in the power cable.
Be sure to use fuses and fuse holder adequate for the application.
GND (GROUND)
Locate a secure grounding connection as close to amplifier as possible. Make
sure the location is clean and provides a direct electrical connection to the
frame of the vehicle. The ground needs to have as low of a resistance as
possible. Connect one end of a short piece of the same size cable as the power
cable to the grounding point or to one of your batteries or battery bank. Run
the other end of the ground cable to the mounting location of the amplifiers
for connection to the amplifiers ground terminals and connect the ground cable
to the GND (ground terminal).
REM (REMOTE)
Run a remote turn on cable from the switched 12V source. This may be a toggle
switch, a relay, your source unit’s remote trigger cables, or power antenna
trigger cable. Connect the remote turn on cable to the REM (remote) terminal.
RCA INPUT CONNECTION
SPEAKER CONNECTION
TROUBLE SHOOTING
- AurA INDIGO series amplifiers have protection features to prevent any damages from misuse or faulty conditions.
- If INDIGO series amplifiers sense excessive heat, short circuited speakers DC, or voltage the protection indicator will light, and the system will be turned off.
- In order to check the problem, you should turn all levels down and all power off and careful check the installation for wiring mistakes or short.
- If AurA INDIGO series amplifiers shuts down due to excessive heat, they will be working later when it is cooled down.
- Before removing your amplifier, refer to the list below and follow the suggested procedures.
NO SOUND (NO OUTPUT)
- Please check all connections, cables routing, short & voltage.
- Please check the fuses. If they are blown, please replace with new one.
- Please check whether speakers work well, you can test speakers by connecting to another amplifier
DISTORTION & NOISE
- Readjust input level and check the speaker quality at another amplifier. Replace poor quality speakers with good quality ones.
- Check amplifiers and head unit’s ground contact. All grounds should be common.
- Check RCA cable, then replace with new one or reroute RCA cable.
- Engine noise is caused by poor grounding of amplifiers, head unit, other components, battery or alternator, so please check all grounding connection.
POOR BASS RESPONSE
Please check speaker cables and reverse polarity.
