1. Low Level Input
For connection to any source (head unit) with a low level output. This is your RCA output from
the source (headunit).
2. Gain Control
Used to match the input signal of the source to the amplifier. See the setup section for more
details.
3. Low Pass Filter Control
Low pass frequency control. The frequency ranges from 40 Hz to 250 Hz.
4. Phase Control
Can be used to alter the phase of the subwoofer from 0 - 180 degrees.
IE: the speaker output can be Inphase or out of phase with the other speakers in the vehicle.
For best results flick between the two settings to determine the best results.
5. Subsonic Filter Control
This is used to filter out unwanted amplifier output to the subwoofer. Effectively this will filter
out all the frequencies up to the crossover point set with the control. The range is from 15 Hz to
50 Hz.Frequencies of 80 Hz and below cause the subwoofer to work hard, some subwoofers
cane easily be damaged when playing very low frequencies. Using the subsonic filter allows
less distortion, delivers frequencies better suited to the subwoofer prolonging its life.
6. Subsonic Filter Switch
Used to turn the filter on or off.
7. Bass Boost control
To provide up to an extra +18 dB of bass boost at 45 Hz. Use this boost to increase bass
output from the amplifier.
8. Bass Remote Input Jack
Use to plug in the remote bass controller.
9. Indicator LED
When the amplifier is operating correctly the LED will show as green. When the amplifier is in
protection mode the LED will show as red.
10. Fuses
Please ensure the following fuse rating is used when replacing fuses:
35 amp x 4
11. Speaker Terminal Output
For connection to the speakers. See Application section for wiring examples.
12. Power Connections
Power connections. See Connections section for details on correct connections.
13. Low Level Output
Daisy chain RCA connection to allow easy addition of another amplifier.
P o w e r
P r o t e c t
S P -
S P -
S P +
S P +
R
I n p u t
L +
R +
L -
R -
R
L
L
H i L e v e l
L i n e O u t
L i n e I n
O F F
O N
S u b s o n i c
P h a s e
L P F
G a i n
M i n M a x 3 5 H z 2 5 0 H z 0 ° 1 8 0 °
8 0 H z
1 6 H z
2 4 d B
0 d B
R e m o t e
B a s s
B o o s t
ED72500
ED71200
ED71200
ED7800
ED7800
ED72500
MONOBLOCK AMPLIFIER 1 X 1250 WATTS RMS
ED71600
ED71600
4 CHANNEL AMPLIFIER 4 X 200 WATTS RMS
ED7400
ED7400
2 CHANNEL AMPLIFIER 2 X 100 WATTS RMS
MONOBLOCK AMPLIFIER 1 X 600 WATTS RMS
4 CHANNEL AMPLIFIER 4 X 100 WATTS RMS
4 x 35 AMP
3 x 35 AMP
INPUT
2 x 15 AMP
2 x 25 AMP
2 x 20 AMP
1
2
5
7
8
3
4
6
9
10
11
12
13
1
2
3
5
7
8
6
4
9
10
11
12
1
2
3
4
9
5
6
7
14
8
10
11
12
13
1
1
2
3
4
5
6
8
9
10
11
12
13
7
2
3
4
5
6
7
8
9
10
11
12
13
14
Terminals and Controls ED72500
Summary of Contents for ED71200
Page 1: ...AMPLIFIER ...
Page 12: ......