System Examples - Kenwood KAC-X621 Instruction Manual

System examp_le_s _
• 2-channel system
• High-power 2-channel subwoofer system
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 ~ ~
DLF 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
x
R (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 of 6dB/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 a drop of the combined impedance with the subwoofer.
Ensure that the withstand voltage and current ratings of the capacitors (C) and coils
(L) are sufficient.
8
English