Ground Zero Mobile Entertainment IRIDIUM Serie Manuel D'instructions page 13

Adjusting the audio level
For the best performance, you must set LEVEL (MIN/MAX) on the side of the amplifier to adjust
the level of the audio signals.
1. Use a screwdriver to turn LEVEL(MIN/MAX) fully to MIN
2. Turn the auto sound system's volume control to about two-third of its full range.
3. Adjust LEVEL(MIN/MAX) to a comfortable listening level
4. Turn up the auto sound system's volume control until the sound begins to distort.
Then immediately turn the volume down to a point just before where the distortion
began.
Caution: Never turn up the auto sound system's volume control more than needed to
adjust the audio level, more than two thirds of its maximum volume.
5. Adjust LEVEL (MIN/MAX) until the sound is at the maximum level you want the
amplifier two produce.
6. Adjust the auto sound system's volume control to a comfortable listening level.
Trouble shooting
This power amplifier has protection features to prevent any damages from misuse or faulty conditions. If the unit
senses excessive heat, short circuited speakers or overload, the protection indicators will light, and the system will
be turned off. In order to check the occurred problem, you should turn all levels down and all power off and
carefully check the installation for wiring mistakes or short. If the amplifier shuts down due to excessive heat, the
protection indicators will not light: simply allow time for the unit to cool.
Before removing your amplifier, refer to the list below and follow the suggested procedures.
Always test the speakers and their wires first.
Problem Check points
• Check that there is battery power on the +12V terminal.
Amplifier is • Check that remote terminal has at least +12V DC remote
not powered up connection.
•
Check a good ground connection. Check all fuses.
• Check the protection LED is not lit.
Protection LED
• Check shorts on speaker wires.
illuminates when
• Remove speaker wires and reset the amplifier. If the
amplifier is powered up
protection LED still comes on, then the amplifier is faulty.
Fuse blowing • Check that the minimum speaker impedance is correct.
• Check short on power cable and vehicle chassis.
• Check that the minimum speaker impedance is correct.
Overheating
• Check speaker shorts.
• Check that there is a good airflow around the amplifier.
• Check that the input level control is set to match the output
Sound too low / level of the unit.
Distorted sound •
Check the head unit volume.
• Check speaker shorts.
• Check that crossover frequencies have been properly set.
High hiss / • Check a good ground and for speaker shorts.
engine noise • Disconnect all RCA inputs from the amplifier. If hiss/noise
in speakers disappears, check it with a good RCA interconnect. Then
check the component driving the amplifier.
All manuals and user guides at all-guides.com
Specifications
Model
RMS power @ 2 Ω,
1% THD
CEA Standard CEA-2006-A
RMS power @ 4 Ω,
1% THD
CEA Standard CEA-2006-A
RMS power @ 4Ω Bridged
14,4 V, 10% THD
Damping factor
Signal to noise ratio
X-over crossover
Bass boost
Bass boost Frequency
Frequency response
Input sensitivity
Channel separation
THD
Dimensions
W x H x L mm
Dimensions
W x H x L inch
GZIA GZIA GZIA
2075HPX 2125HPX 2230HPX
2 x 75 W 2 x 125 W 2 x 230 W
2 x 60 W 2 x 80 W 2 x 150 W
1 x 200 W 1 x 300 W 1 x 540 W
> 70 > 70 > 70
80 dB 80 dB 80 dB
40 – 3000 Hz / 40 – 3000 Hz / 40 – 3000 Hz /
30 – 250 Hz 30 – 250 Hz 30 – 250 Hz
- - -
- - -
10 Hz - 30 kHz 10 Hz - 30 kHz 10 Hz - 30 kHz
0,2 – 6 V 0,2 – 6 V 0,2 – 6 V
60 dB 60 dB 60 dB
< 0.08 < 0.08 < 0.1
170 x 255 x 50 200 x 255 x 50 260 x 255 x 50
6.60" x 7.87" x 10.24" x
10.04" x 1.97" 10.04" x 1.97" 10.04" x 1.97"
GZIA
4110HPX
4 x 110 W
4 x 70 W
2 x 250 W
> 70
80 dB
40 – 3000 Hz /
30 – 250 Hz
0 / +6 / +12
dB
60 Hz
10 Hz - 30 kHz
0,2 – 6 V
60 dB
< 0.8
280 x 255 x 50
11.02" x
10.04" x 1.97"