3. CONTROLS
4. CONNECTORS
1 RCA line inputs front (left and right channels)
2 RCA line inputs rear (left and right channels)
3 RCA subwoofer inputs (left and right channels)
4 Remote terminal
5 Input mode selector
6 BLC connector
7 Rear speakers connector
8 Front speakers connector
9 Subwoofer connector
1 +12 V and ground power input
2 Fuses (2x40 A)
3
Bal/unbal. selector switches:
All GRAVITY MK2 series amplifiers are equipped with selector switches for
balanced or unbalanced input mode operation, in order to prevent noise
induction by ground loops.
Alternator whine and other noise induction is mostly caused by improper
ground connections of the components like radio, equalizer, processor,
amplifier etc.
Unless all of them are grounded in
one and the same
grounding point on
the car chassis, noise may occur due to different ground potentials.
There is only one way to avoid these effects: Selection between balanced or
unbalanced input mode of the amplifiers.
Usage:
The amplifiers are factory-set to “balanced”. If noise occurs, all switches
should be set to „unbal.” For noise suppression, it is also allowed to set
a number of switches to “bal.” And others to „unbal.”, in order to find the
perfect combination.
All controls are accessible under the aluminium top cover. For adjustments,
remove the top cover using the hexa screwdriver that came with your
product.
1
Level front
2
Front highpass
3
Bypass for front highpass
4
Front lowpass
5
Bypass for front lowpass
6
Level rear
7
Rear Highpass
8
Bypass for rear highpass
9
Rear lowpass
10 Bypass for rear lowpass
11 Subsonic frequency
12 Subsonic on/off
13 Subwoofer lowpass frequency
14 Subwoofer phase shift 0°-180°
15 Parametric EQ Center frequency
16 Parametric EQ Q factor (bandwidth)
17 Parametric EQ Gain
18 Logo / Diagnostic LED: LED off: Amplifier is off; LED Blue: Amplifier
is ON, and working correctly.
LED RED: Protection activated.
See #6,
troubleshooting
REAR
FRONT
+
+
+
+
R
L
R
L
FRONT
REAR
SUB
INPUTS
R
R
L
L
REMOTE
BLC
bridged
bridged
SUB
INPUT MODE
SELECT
2ch
4ch
6ch
+
UNBAL
UNBAL
UNBAL
BAL
BAL
BAL
6
7
8
9
1
1
4
5
2
2
3
3
40A
40A
GRAVITY
5G-900 MK2
Digital / Analog Power Amplifier
+
12V
Engineered and designed in Germany
1
2
2
1
LOWPASS
FRONT
min
max
LEVEL
REAR
On Off
min
max
On Off
SUB
LOWPASS
HIGHPASS
40
55
100
200
Hz
80
125
150
40
55
100
200
Hz
80
125
150
On Off
On Off
15
30
50
200
Hz
40
85
150
15
30
50
200
Hz
40
85
150
0
180
Phase
40
50
85
160
Hz
70
100
125
0,5
20
-8
+8
dB
Q-Factor
Gain
PARAMETRIC
EQUALIZER
33
110
60
45
80
20
180
Hz
GRAVITY
5G-900 MK2
5-Channel Amplifier
10
22
28
35
45
Hz
min
max
SUBSONIC
LEVEL
1
2
4
3
5
6
7
8
9
10
11
12
13
14
15
16
17
18
In case the noise problem still cannot be solved 100%, the ground wiring
must be revised and optimised.
10
10
10 Bal/unbal selktor switch
Содержание Gravity MK2 5G-900
Страница 1: ......
