System
examp_le_s
_
• 2-channelsystem
• High-power2-channelsubwoofersystem
I
r-q
0
Dg~
Left
speaker
CENTER
UNIT
'-~.
__
--'-e
. .
me;
Right
speaker
Left
subwoofer
(Bridged)
Right
subwoofer
(Bridged)
[MONO(lch
1
~
tSTEREO
FlL.TER
AMPCONT
ISF
OPERATION
DD
OPERA.TION
[MONOlLch
l
~
[STEREO
FILTER
,t..MPCONT ISF
:~.
7O~r(MI~~:~~)
I
FRE~:CYlHzlll
FREQ~:CY(Hz}11
SEN~%~lhM
I
• 2-channel+Subwoofer system
L-.-----...ll
Left
speaker
(High
pass)
L-.-----...ll
Right
speaker
(High
pass)
Subwoofer
(L+R)
(Bridged)
:~~
7Oer:~::
50
200
50 200 (MIN}5
O.2{MAX)
[FREO~~cY(Hyll
FREa~:CY(HZII
[
SEN::~'hM
I
OPERATION
[MONO{Lch}
~
t
STEREO
FILTER
AMP
CONT
ISF
(HPF
rON
[ON
~-OFF
~ ~
D
LF
LFF
L"
OPERATION
[MONOILeIl)
~
tSTEREO
• Tri-mode
(High
pass)
::m
7'~"O
:~::
50 200 60 200
(M1N)5
O.2(MAX)
I
FRE~~~cy(Hz)ll FREa~:cY(Hz)ll
SEN:tmltvM
I
Coli
(L):
Passes
low
frequencies
and
blocks
high
frequencies.
(Low
pass)
Capacitor (C):
Passes
high
frequencies
and
blocks
low
frequencies.
(High
pass)
fc=Cut
of
Frequency
(Hz)
R=Speaker
Impedance
(0)
C=
159000
(
F)
fc
x R
~
L=
159
xR
(mH)
fc
Crossover
Frequ.;.e
__
n~cy'_
_
:±iIA:!Ja
Frequency
OdB
-3
dB
Principle ofTri-mode
Method of
frequency
band
division
using
a
coil
and
capacitor
..
in
case
of6dB/oct.
slope.
Example:
When
it
is
required to
set
a
crossover
frequency
of
120
Hz
using
speakers
with
an
impedance
of
4
ohms.
Prepare
commercially-available coil
and
capacitor with the
closest
ratings to the
results
calculated from the formula
above.
The
capacitor rating should
be
as
close
as
possible
to
331.25
(~F)
and
the coil rating should
be
as
close
as
possible to
5.3
(mH).
ACAUTION
OPERATION
(MONO(l..ch
l
~
LTEREO
FILTER
AMPCONT
ISF
If
you
wish
to
bridge-connect a
speaker,
the
speaker
impedance must
be
no
less
than 4
ohms.
Connecting a
speaker
with
an
impedance lower than 4 ohms
may
damage
the unit.
Be
sure
to connect capacitors to
speakers
to which high frequencies will
be
passed.
Failure
to
do
so
will
result
in
adrop of the combined impedance with the subwoofer.
Ensure
that the withstand voltage
and
current ratings ofthe capacitors
(C)
and
coils
(L)
are
sufficient.
8
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