User Guide
I
Et7
Q
poweA
Chassl$
groUf'ld
point
to
REMOTE
TURN-ON
tennlnal
01
head
unit
MINIMUM
SPEAKER
IMPEDANCE
40HMS
~
./'
Q
$
MINIMUM
SPEAKER
IMPEOANCE
4 OHMS
Power
and
Speaker
Wiring
2-Channel
Amplifier
MR400.2
Power
and
Speaker
Wiring
2·,Chanhel
Amplifie!i
"'11400.2
Two
Channel
R.IGHT
Speaker
Bridged
SPEAKER
IMPEDANCE
4-8 OHMS
$
Q
POW,liR
Ch.a;sls
ground
point
to
REMOTE
TURN-ON
18111'1
inal
0 r
head
u
ni
l
~
Q
LEFT
Speaker
Mode
ttl
o
CJ
c::J
FUSE
I
Batlery
I
ttl
Q
~I,.o,ll£l'n
Cha'"ssis
ground
point
to 'REMOTE
TllRN·ON
~
Q
SUBWOOFER
ttl
Mode
torm
lnal
of
I'
cad
unIt
Connecr the Negmive (-)
terminal
of
1M
speaker to
/he
o
c::J
CJ
R(-)
amplifier
terminal.
FUSE
I
Battery
I
COnnec!
the posJtlve (+)
terminal
of
the spooker 10 !he
L(+)
amplifier
terminal.
Tri-mode operation allows you to connect this amplifier to a
pair-
of
main speakers
plus a sUlbwoofer on one pair
of
output channels. The main speakers will operate
in
STEREO while the subwoofer simultaneously operates
In
MONO.
To
set up the amplifier to run
In
this mode, put the crossover switch in the
FULL
position. Insert
h'igh
pass filter capacitors and a
low
pass fliller -nditJctor into the
wiring as
shown
below. Be sure to check the table at the bottom
of
this page
to
determine the correct capacitor ar.d inductor values for the crossover frequency
you wish
10 achieve,
Tri-Mode
LEFT
Speaker
HIgh
pass
filter
RIGHT
Spaaker
capacitors
o
c::::I
c::J
SP'EAKER
FUSE I
Ba
tte
ry
I
IMPEDANCE
80HMS
Component
values
for
6dB
Passive
Crossover
FREQUENCY INDUCTOR CAPACITOR
80 Hz
7.5mH
470uF
tOO
Hz
6.5mH
330uF
120 Hz
5.5mH
330uF
t50
Hz
4mH
220uF
Lowpass
filter Inductor
Marino MOSFET Amplifier
Users
Manual - page
10
Marine
MOsFET
AmplirJel USB(S
Manual-
page
11