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PDF KAC-7251 Data sheet ( Hoja de datos )
| Número de pieza | KAC-7251 | |
| Descripción | (KAC-7201 / KAC-7251) Manual | |
| Fabricantes | Kenwood | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de KAC-7251 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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KAC-7251
KAC-7201
POWER AMPLIFIER 7 page 2-13
INSTRUCTION MANUAL
AMPLIFICATEUR DE PUISSANCE 7 page 14-25
MODE D’EMPLOI
AMPLIFICADOR DE POTENCIA 7 página 26-37
MANUAL DE INSTRUCCIONES
Take the time to read through this instruction manual.
Familiarity with installation and operation procedures will help
you obtain the best performance from your new power amplifier.
For your records
Record the serial number, found on the back of the unit, in the spaces
designated on the warranty card, and in the space provided below.
Refer to the model and serial numbers whenever you call upon your
KENWOOD dealer for information or service ownwthwe.DpartoadSuhcete.t4U.com
Model KAC-7251/7201 Serial number
© PRINTED IN CHINA B64-2569-00/00 (KV/EV)
www.DataSheet4U.com
www.DataSheet4U.com
1 page  
Remote controler
(KAC-7251 only)
dB
+6 +9
OFF +12
67
7 Power indicator
When the power is turned on, the Power
indicator lights.
If the Power indicator does not light when
the power is turned on, the protection
function may be activated. Check whether
there is any indication of trouble.
■ The protection function is
activated in the following
situations:
This unit is equipped with a protection
function for protecting this unit and your
speakers from various accidents or
problems that can occur.
When the protection function is triggered, the
Power indicator goes off and the amplifier
stops operating.
• When a speaker wire may be short-
circuited.
• When a speaker output contacts ground.
• When the unit malfunctions and a DC
signal is sent to the speaker output.
• When the internal temperature is high and
unit won’t operate.
• When a ground wire of the center unit
(cassette receiver, CD receiver, etc.) or
this unit is not connected to a metal part
serving as an electrical ground passing
electricity to the battery's negative -
terminal.
English 5
5 Page 
■ Tri-mode
CENTER UNIT
LL
RR
L
C
(High pass)
C
Subwoofer
(L + R) (Bridged)
23
4
●Principle of Tri-mode
Method of frequency band division using a coil and capacitor…in case of 6dB/oct. slope
0 dB
-3 dB
Crossover Frequency
LC
Frequency
Coil (L): Passes low frequencies and blocks high
frequencies. (Low pass)
Capacitor (C): Passes high frequencies and blocks low
frequencies. (High pass)
C=
159000
fc x R
(µF)
L=
159 x R
fc
(mH)
fc=Cut of Frequency (Hz)
R=Speaker Impedance (Ω)
●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
(µF) and the coil rating should be as close as possible to 5.3 (mH).
2CAUTION
• 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.
English 11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet KAC-7251.PDF ] | |
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