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[. . . ] [. . . ] ST
Mon o
ST
Inp
Mon
ut
o
M3A. 250
2
CHANNEL
Lef t
Rig ht
Con t
1V Flat Fil
rol
POWER
AMPLIFIER
Lef t
/F ilt e
Inp
ut
8V 0, 2 V
H ter ig h Low
r -M ode -
60H z
ST Mon o
30
Illustration Guide
For more informations <www. macrom. ch>
600
Rig
ht
Low Level Input
8V
1V
ST / mono selector
0, 2 V
8V
Input setting Filter setting
0, 2
V
Gain Control Adjust
150
Hz
Flat Response
20Hz 20kHz
Left 1V Right 8V 0, 2V
30 600
30
30 600
600
Input Control / Filter
Flat High Filter Low 60Hz
- Mode ST Mono
1V
8V
/F Fla il t Fil H ter ig h Low
0, 2 V
Con tro l
or
high pass filter control
Con t
1V
8V 0, 2 V
/F Fla ilt t er Fil H ter ig h Low
rol
20Hz
30Hz
600Hz
20kHz
or
FILTER
Low pass or High pass
Low pass filter control
20Hz 30Hz
600Hz
20kHz
Technical Data
IHF max power handling Configuration RMS Power 4 ohm Stereo load at 14, 4 V RMS Power 2 ohm Stereo load at 14, 4 V RMS Power 4 ohm Bridged load Frequency response (+0/-1 dB) Signal to noise ratio Input sensitivity Input impedance Crossover tipe Crossover frequency & filter slop (High-pass) Crossover frequency & filter slop (Low-pass) Dimensions (w * h * d) 350 Watts "1 - 2" 50 x 2 watts 70 x 2 watts 140 x 1 watts 10 - 45, 000 Hz >95 dB 200 - 8, 000 mV 22. 000 ohm variable 30 to 600/12 Hz/dB 30 to 600/12 Hz/dB 265 x 50 x 195 mm
Output/Power connection
M3A. 250
2
CHANNEL
POWER
AMPLIFIER
Illustration Guide
For more informations <www. macrom. ch>
IMPEDANCE REQUIREMENT 2 OHM MINIMUM
4 ohm 4 ohm 4 ohm 4 ohm 4 ohm
+ +
L
Spe
ake
Stereo
-
Brid Out put ged
+
r
+
R
-
Spe a
L
+
-
ker Brid Out ged put
+
R
Fus e
20A
+BAT
T
Pow er Ter mi
Remo te
nal
-GND
+
-
+
-
+
or
+ Speakers output
+ Left
Speakers output
+ Right -
AMP
Two 4 ohm speakers
AMP
3 or more 4 ohm speakers
Min load 2ohm
OK
4 ohm
NOT OK
2 ohm
Bridged
Min load 4ohm
+ +
L
Power connection
+BA TT
Pow er T er m
Rem ote
ina
l
-GN D
Spe
ake
-
Brid Out put ged
r
+
R
-
+
-
+
-
+
-
+
-
Speaker output
Speaker output
AMP
One 4 ohm speaker
AMP
One 4 ohm speaker
+ Bridged -
+ -
CAR CHASSIS
OK
NOT OK
CAR CHASSIS [. . . ] [. . . ]
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