Macrom M1A275 User Manual
High Level
Input
Low Level
Input
Gain Control Adjust
ST / mono
selector
Flat Response
Low pass
filter control
On
Off
8V 0,2V
1V
Input
Mono
ST
Left
Right
30
600
150Hz
Flat
Low
Low
Only
Control / Filter
Input
- Mode -
EBC
High Input
Level
R +
R -
L L +
GND
On
Off
8V 0,2V
1V
Input
Mono
ST
Left
Right
30 600
150Hz
30
600
150Hz
Flat
Low
Flat
H
Low
Only
Control / Filter
Input
- Mode -
EBC
Filter /
High Input
Level
R +
R L -
L +
GND
High Inpu
Level
R +
R L L +
GND
R+
R -
L -
L+
GND
Mono
ST
Mono
ST
M1A.275
On
Off
Output
Mono
ST
Left
Right
30 600
150Hz
Flat
High
Low
Only
Input
- Mode -
EBC
Filter / Control
Input setting
Filter setting
Pre-output setting
Flat Response
High pass
filter control
Input
Left
Right
8V 0,2V
1V
8V
0,2V
4V 0,2V
1V
30 600
150Hz
Flat
Low
Control / Filter
4V 0,2V
1V
30 600
150Hz
Flat
Low
Control / Filter
20Hz20Hz
20kHz
30Hz 600Hz
20Hz20Hz
20kHz
30
600
30 600
150Hz
or
30
600
30 600
150Hz
4V 0,2V
1V
30 600
150Hz
Flat
High
Control / Filter
20Hz20Hz
20kHz
20Hz20Hz
20kHz
30Hz 600Hz
4V 0,2V
1V
30 600
150Hz
Flat
High
Control / Filter
Illustration Guide
For more informations <www.macrom.ch>
2 CHANNEL POWER AMPLIFIER
M1A.275
R
-
+
+
L
-
B
r
id
g
e
d
-
+
Power Terminal
Fuse
+BATT
-GND
Remote
20A20A20A
Speaker Output
Stereo
Bridged
On
Off
Output
Mono
ST
Left
Right
30 600
150Hz
30
600
150Hz
Flat
Low
Flat
High
Low
Only
Input
- Mode -
EBC
Filter / Control
EBC setting
Output/Power connection
R
-
+
+
L
-
Bridged
-
+
Speaker Output
Left
Right
+
-
+
-
R
-
+
+
L
-
Bridged
-
+
Speaker Output
Bridged
+
-
Low
Only
Input
- Mode -
EBC
Off
On
Low
Only
Input
- Mode -
EBC
Off
On
Min
Max
+
-
CAR CHASSIS
Power Terminal
+BATT
-GNDRemote
CAR CHASSIS
Power connection
or
Technical Data
IHF max power handling 500 Watts
Configuration “1 - 2” ch
RMSPower 4 ohm Stereo load at 14,4 V 75 x 2 watts
RMS Power 2 ohm Stereo load at 14,4 V 105 x 2 watts
RMS Power 4 ohm Bridged load 210 x 2 watts
Frequency response (+0/-1 dB) 10 - 50,000 Hz
Signal to noise ratio > 100 dB
Input sensitivity 200 - 8,000 mV
Input impedance 22.000 ohm
Crossover tipe variable
Crossover frequency & filter slop (High-pass) 30 to 600/12 Hz/dB
Crossover frequency & filter slop (Low-pass) 30 to 600/12 Hz/dB
Pre-output (By-pass/Low pass/High pass) Bp-Hp
EBS External Bass Control Yes
Dimensions (w * h * d) mm 265 x 50 x 220
EBC setting
EBC connection
Illustration Guide
For more informations <www.macrom.ch>
Min load 2ohm
Min load 4ohm
2 CHANNEL POWER AMPLIFIER
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