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Controls
KAC-5201 KAC-5201 KCA-6201
25
9
0.5 0.3
10
1 234
5
6 7 89
0
!
15 20 (W)
1.0 MIN MAX INPUT SENSITIVITY(V)
KAC-6201 6 7 89 Operations of the following control and switches are required in accordance with the center unit and speakers connected with this unit. 0 !
25W or greater KAC-6201 Power indicator KAC-5201
6 RCA cable ground lead terminal
When using an RCA cable with a ground lead attached, connect the ground lead to this terminal.
2CAUTION
� STEREO position
The amplifier can be used as a stereo amplifier.
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.
� L+R position (KAC-6201 only)
The input left and right signals are combined before being amplified. Use this position when the unit is used for subwoofer speakers or the L+R (monaural) sound is required.
1 Fuse
25 A � 1 : KAC-6201 15 A � 1 : KAC-5201
NOTE
If you can�t find the specified capacity fuse at your store etc., consult your Kenwood dealer.
Do not use this terminal for power source grounding. This unit will be damaged if the power source grounding wire is connected to this terminal.
� MONO (Lch) position
7 FILTER switch
2 Battery terminal 3 Ground terminal 4 Power control (REMOTE) terminal 5 SPEAKER OUTPUT terminals � Stereo Connections:
When you wish to use the unit as a stereo amplifier, stereo connections are used.
These switches allow filtering of the speaker output signals.
� HPF (High Pass Filter) position (KAC6201 only)
Only frequencies of 150 Hz or higher are output. (Frequencies below 150 Hz are cut.)
Amplifies the signal input from the left side only. Set to this position and make bridged connections to use as a high-power monaural amplifier. (The input right signal is not output.)
â� 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.
9 INPUT SENSITIVITY control
Set this control according to the pre-output level of the center unit connected with this unit, or to the maximum power output of the genuine-accessory car stereo. Use the diagram on the right as a guide.
NOTE
� LPF (Low Pass Filter) position
Only frequencies of 80 Hz or lower are output. (Frequencies above 80 Hz are cut.) The Lch and Rch will be mixed before output even if the operation switch is set to STEREO.
� Bridged Connections:
When you wish to use the unit as a high-output monaural amplifier, bridged connections are used. (Make connections to the LEFT channel (+) and the RIGHT channel (�) SPEAKER OUTPUT terminals.)
� OFF position
The original sound without filtering is output.
For the pre-output level or the maximum power output, refer to the �Specifications� in the instruction manual of the center unit.
8 OPERATION switch
This switch allows selection of the amplification method of input signals.
0 LINE IN terminal ! Speaker level input terminals
System examples
â� 2-channel system
CENTER UNIT
L R L R
Connection
NOTE
*Commercially available parts
25
For safe installation, read "Installation procedure" before starting work.
Left speaker Right speaker
â� RCA cable connection
CENTER UNIT (Cassette receiver, CD receiver, etc.)
â� Speaker level input connection
Genuine-accessory car stereo (No line output center unit etc.) Speaker RCA cable* Car fuse box ACC
7 KAC-5201 8
FILTER
OFF LPF
7
KAC-6201
8
OPERATION
STEREO MONO(Lch)
FILTER
OFF HPF LPF
OPERATION
L+R STEREO MONO(Lch)
â� Subwoofer system
CENTER UNIT
L R L R
Left speaker Right speaker
Battery
6
Subwoofer
G ND
!
K EA T SP LEF E R LEV
PU IN EL IGHT R
T
7
OFF
KAC-5201
8
7
KAC-6201
8
Power control wire*
FILTER
LPF
OPERATION
STEREO MONO(Lch)
FILTER
OFF HPF LPF
OPERATION
L+R STEREO MONO(Lch)
â� 1-channel system
CENTER UNIT
L
L R L R L R
â� Speaker stereo connection
Left speaker Lead terminal*
â� Speaker bridge connection
Lead terminal*
4
4
R
L R
Right speaker
25 25
5 7
OFF
KAC-5201
8
7
KAC-6201
T LEF
B
RIDG
ED
IGHT R
5
BR IDGE
D
HT RIG
LEFT
8
FILTER
LPF
OPERATION
STEREO MONO(Lch)
FILTER
OFF HPF LPF
OPERATION
L+R STEREO MONO(Lch)
â� Tri-mode
High pass
C L
Left speaker Crossover Frequency 0 dB Subwoofer (L + R)
C
Right speaker
Subwoofer
CENTER UNIT
L R
L R
â� Power wire connection
-3 dB
L C
7
OFF
KAC-5201
8
7
KAC-6201
8
Frequency C= 159000 (µF) = 159000 = 331.25 µF fc x R 120Hz x 4� 159 x R 159 x 4� L= (mH) = = 5.3 mH fc 120Hz 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.
FILTER
LPF
OPERATION
STEREO MONO(Lch)
FILTER
OFF HPF LPF
OPERATION
L+R STEREO MONO(Lch)
234
Lead terminal* Terminal cover
Principle of Tri-mode Method of frequency band division using a coil and capacitor ... in case of 6dB/oct. slope Coil (L): Passes low frequencies and blocks high frequencies. (Low pass) Capacitor (C): Passes high frequencies and blocks low frequencies. (High pass) Example: When it is required to set a crossover frequency of 120 Hz using speakers with an impedance of 4 ohms. fc=Cut of Frequency (Hz) R=Speaker Impedance (�)
Power control wire* Battery wire* Ground wire*
Protective Fuse*
Battery
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