KENWOOD M A300 User Manual

STEREO POWER AMPLIFIER  
M-A300  
M-A100  
INSTRUCTION MANUAL  
KENWOOD CORPORATION  
This instruction m anual is used for tw o m odels.  
Model availability and features (functions) m ay differ depending on the country and  
sales area.  
B60-3340-00 (K, P, Y, T, M, C, X, I) MA CH MC  
98/12 11 10 9 8 7 6 5 4 3 2 1 97/12 11 10 9 8 7 6 5  
Introduction  
M-A3 0 0 / A1 0 0 (En)  
Unpacking  
3
Unpack the unit care fully and make sure that all acce ssorie s are put aside so the y will not be lost. Examine the unit for any possibility of  
shipping damage . If your unit is damage d or fails to ope rate , notify your de ale r imme diate ly. If your unit was shippe d to you dire ctly, notify  
the shipping company without de lay. Only the consigne e (the pe rson or company re ce iving the unit) can file a claim against the carrie r for  
shipping damage . We re comme nd that you re tain the original carton and packing mate rials for use should you transport or ship the unit in the  
future .  
Ke e p this manual handy future re fe re nce .  
Accessories  
Paralle l cord (1)  
AC plug adaptor (1)*  
* Use to adapt the plug on the power cord  
to the shape of the wall outlet.  
(Accessory only for regions where use is  
necessary.)  
Caution : Read the pages marked  
carefully to ensure safe operation.  
Contents  
Introduction .................................................................................................... 2  
Operating instructions ................................................................................. 7  
In case of difficulty ....................................................................................... 7  
Specifications ........................................................................................ 8  
Before applying power...................................................... 2  
Safety precautions ............................................................ 2  
Special features ............................................................................................ 3  
Controls and indicators ................................................................................ 3  
System connections ...................................................................................... 4  
Terminal connection ................................................................ 4  
Connection of M-A300 ............................................................ 5  
Connection of M-A100 ............................................................ 6  
Special features  
Power amplifier for surround play  
This unit is the amplifier designed exclusively for use with the surround speaker, center speaker and subwoofer for the surround system of the  
SERIES 21.This unit allows you to enjoy the surround play more effectively.  
New TRAITR transistor adopted in the final stage  
A new TRAITR transistor which features superior temperature tracking characteristics has been adopted in the final stage of the power  
amplifier block. This new TRAITR transistor combines a temperature compensation resistor with an emitter resistor and final transistor to  
provide ideal temperature compensation characteristics and minimize distortion caused by temperature variations.  
Controls and indicators  
POWER indicator  
POWER  
POWER AMPLIFIER  
-ON OFF  
POWER sw itch  
System connections  
M-A3 0 0 / A1 0 0 (En)  
4
Terminal connection  
Speaker unit  
Main unit  
2 Push lever.  
2 Push lever.  
1 Strip coating.  
1 Strip coating.  
4 Return lever.  
4 Return lever.  
3 Insert cord.  
3 Insert cord.  
• Never short circuit the + and – speaker cords.  
• If the left and right speakers are connected inversely or the speaker cords are connected with reversed polarity, the sound will be unnatural with  
ambiguous acoustic imaging. Be sure to connect the speakers correctly.  
Connection of parallel cord  
• When connecting the parallel cord, insert the plug straight into the  
connector until it clicks to lock them securely.  
• When disconnecting the parallel cord, push in the two sides of the  
plug and pull it straight out.  
Ventilation fan  
The ventilation fan runs during high-power reproduction. To allow for  
proper ventilation, do not block the ventilation fan.  
Caution regarding placement  
(Except for U.S.A. and Canada)  
To maintain proper ventilation, be sure to leave a space around the  
unit (from the largest outer dimensions, including projections) equal  
to, or greater than shown below:  
Left and right panels: 10 cm, Rear panel: 10 cm  
AC outlet on the rear panel  
UNSWITCHED AC outlet  
The power of the component connected to this kind of AC outlet can  
be switched ON/OFF regardless of the POWER switch on the main  
unit.  
1. Connect all cords firmly. Loose connections may prevent proper sound transmission or produce noise.  
2. Be sure to remove the power cord from the AC outlet before plugging or unplugging any connection cords. Plugging / unplugging connection  
cords without disconnecting the power cord can cause malfunctions and may damage the unit.  
3. Do not connect power cords from components whose power consumption is larger than what is indicated on the AC outlet at the rear of this  
unit.  
NNootteess  
System connections  
M-A3 0 0 / A1 0 0 (En)  
5
Connection of M-A300  
Make connections as show n below . When connecting the related system com ponents, refer also to the instruction m anuals  
of the related com ponents.  
Do not plug in the pow er lead until all connections are com pleted.  
AC outlet  
Surround speakers  
U.K.  
Right  
Left  
U.S.A., Canada  
and China  
+
+
Australia  
To AV control  
center  
Other countries  
CONNECT WITH AV  
CONTROL CENTER  
To AC w all  
outlet  
SUB  
FRONT SURROUND WOOFER  
CENTER SURROUND FRONT  
UNSWITCHED  
+
+
-
-
R
R
(6-16)  
(6-16)  
C
L
L
SW  
SPEAKERS  
SPEAKERS  
Ventilation fan  
Center speaker  
When using  
the speaker  
system S-F700  
See-through  
+
White lined  
+
Subw oofer  
Front speakers  
Right Left  
+
+
+
+
+
The shape of the speakers are variable depending on the system and marketing destination type.  
NNoottee  
System connections  
M-A3 0 0 / A1 0 0 (En)  
6
Connection of M-A100  
Make connections as show n below . When connecting the related system com ponents, refer also to the instruction m anuals  
of the related com ponents.  
Do not plug in the pow er lead until all connections are com pleted.  
AC outlet  
U.K.  
U.S.A., Canada  
and China  
Pow ered subw oofer  
Center  
speaker  
Australia  
To AV control  
center  
+
Other countries  
CONNECT WITH AV  
CONTROL CENTER  
SUB  
WOOFER  
To AC w all  
outlet  
PRE OUT  
SURROUND  
FRONT  
FRONT  
CENTER  
UNSWITCHED  
+
+
-
-
(6-16)  
R
R
(3-16)  
C
(6-16)  
L
L
SPEAKERS  
SPEAKERS  
Ventilation fan  
Surround speakers  
Right Left  
See-through  
White lined  
+
+
Front speakers  
Right Left  
+
+
The shape of the speakers are variable depending on the system and marketing destination type.  
NNoottee  
Operating instructions  
M-A3 0 0 / A1 0 0 (En)  
1Switch the POWER key to ON position.  
7
POWER  
-ON OFF  
Turn on the system by using the AV control  
center.  
2
• The power indicator on the panel lights up.  
3Play a music source.  
In case of difficulty  
What appears to be a m alfunction m ay not alw ays be serious. If your unit should not perform as expected, consult the table  
below to see if the problem can be corrected before seeking help from your dealer or service representative.  
Sym ptom  
Cause  
Rem edy  
Sound ca nnot be produce d.  
(Indica tor is off.)  
• The parallel cord is not connected.  
• The speaker cords are short-circuited.  
• Connect them properly referring to System  
connections”.  
• Turn the power OFF, remove the short-circuit,  
and turn the power ON again.  
• The protection circuitry is activated due to • Switch the power OFF and wait for the internal  
internal temperature rise.  
temperature to drop. The unit can be turned  
ON and re-used when the temperature drops,  
but the fundamental solution of the problem  
is not possible unless the unit installation  
(heat radiation) condition is corrected. Im-  
prove the unit installation referring to page 4.  
Sound ca nnot be produce d.  
(Indica tor lights.)  
• The speaker cords are not connected.  
• One of the speaker cord is not connected.  
• A speaker cord is not connected.  
• Connect them properly referring to System  
connections”.  
S o u n d is n o t p ro d u ce d fro m o n e o f t h e  
spe a ke rs.  
• Connect it properly referring to System con-  
nections”.  
Sound from the surround spe a ke r is not  
produce d or ve ry low .  
• Connect it properly referring to System con-  
nections”.  
Do not use contact cleaners because it could cause a malfunction. Be specially careful against contact cleaners containing oil, for they may deform  
the plastic components.  
NNoottee  
Specifications  
M-A300  
Caution : Read this section carefully to ensure safe operation.  
M-A3 0 0 / A1 0 0 (En)  
M-A100  
AUDIO section  
AUDIO section  
8
Effective output pow er during STEREO operation  
[Except for the U.S.A., Canada and the UK]  
1kHz,10% T.H.D., at 6 Ω .......................................... 100 W + 100 W  
Rated output pow er during STEREO operation  
[For the U.S.A. and Canada]  
Effective output pow er during STEREO operation  
[Except for the U.S.A., Canada and the UK]  
1kHz,10% T.H.D., at 6 Ω .......................................... 100 W + 100 W  
Rated output pow er during STEREO operation  
[For the U.S.A. and Canada]  
100 w atts per channel m inim um RMS, both channels driven,  
at 6 from 20 Hz to 20 kHz w ith no m ore than 0.09 % total  
harm onic distortion.(FTC)  
100 w atts per channel m inim um RMS, both channels driven,  
at 6 from 40 Hz to 20 kHz w ith no m ore than 0.09 % total  
harm onic distortion.(FTC)  
[For the UK]  
[For the UK]  
(DIN) 1 kHz, 0.7% at 6 Ω ......................................... 100 W + 100 W  
(IEC) 63 Hz ~ 12.5 kHz, 0.7% at 6 Ω ..................... 100 W + 100 W  
[For other countries]  
(DIN) 1 kHz, 0.7% at 6 Ω .............................................. 80 W + 80 W  
(IEC) 63 Hz ~ 12.5 kHz, 0.7% at 6 Ω .......................... 80 W + 80 W  
[For other countries]  
1kHz,1% T.H.D.,at 6 Ω .................................................. 80 W + 80 W  
Effective output pow er during SURROUND operation  
[For the U.S.A., Canada and the UK]  
1kHz,1% T.H.D.,at 6 Ω .................................................. 80 W + 80 W  
Effective output pow er during SURROUND operation  
[For the U.S.A. and Canada]  
FRONT (1kHz, 5% T.H.D. at 6 )........................ 100 W + 100 W  
CENTER (1kHz, 5% T.H.D. at 6 )..................................... 100 W  
SURROUND (1kHz, 5% T.H.D. at 6 ) ............... 100 W + 100 W  
[For other countries]  
FRONT (1kHz, 5% T.H.D. at 6 )........................ 100 W + 100 W  
CENTER (1kHz, 5% T.H.D. at 6 )..................................... 100 W  
SURROUND (1kHz, 5% T.H.D. at 6 ) .............................. 100 W  
[For the UK]  
FRONT(1kHz, 10% T.H.D. at 6 )....................... 100 W + 100 W  
CENTER (1kHz, 10% T.H.D. at 6 )................................... 100 W  
SURROUND(1kHz, 10% T.H.D. at 6 ) .............. 100 W + 100 W  
Rated output pow er during SURROUND operation  
[For the U.S.A. and Canada]  
FRONT (1kHz, 1% T.H.D. at 6 )............................. 60 W + 60 W  
CENTER (1kHz, 1% T.H.D. at 6 )....................................... 60 W  
SURROUND (1kHz, 1% T.H.D. at 6 ) .................... 60 W + 60 W  
[For the UK]  
FRONT (1kHz, 5% T.H.D. at 6 )............................. 75 W + 75 W  
CENTER (1kHz, 5% T.H.D. at 6 )....................................... 75 W  
SURROUND (1kHz, 5% T.H.D. at 6 ) ................................ 75 W  
[For other countries]  
FRONT(1kHz, 10% T.H.D. at 6 )....................... 100 W + 100 W  
CENTER (1kHz, 10% T.H.D. at 6 )................................... 100 W  
SURROUND(1kHz, 10% T.H.D. at 6 ) ............................. 100 W  
Rated output pow er during SURROUND operation  
[For the U.S.A. and Canada]  
FRONT (1kHz, 1% T.H.D. at 6 )............................. 50 W + 50 W  
CENTER (1kHz, 1% T.H.D. at 6 )....................................... 50 W  
SURROUND (1kHz, 1% T.H.D. at 6 ) .................... 50 W + 50 W  
[For other countries]  
FRONT (1kHz, 1% T.H.D. at 6 )............................. 60 W + 60 W  
CENTER (1kHz, 1% T.H.D. at 6 )....................................... 60 W  
SURROUND (1kHz, 1% T.H.D. at 3 ) .................... 35 W + 35 W  
[For the UK]  
FRONT (1kHz, 1% T.H.D. at 6 )............................. 55 W + 55 W  
CENTER (1kHz, 1% T.H.D. at 6 )....................................... 55 W  
SURROUND (1kHz, 1% T.H.D. at 6 ) .................... 55 W + 55 W  
FRONT (1kHz, 1% T.H.D. at 6 )............................. 45 W + 45 W  
CENTER (1kHz, 1% T.H.D. at 6 )....................................... 45 W  
SURROUND (1kHz, 1% T.H.D. at 3 ) .................... 23 W + 23 W  
[For other countries]  
Total harm onic distortion ......................... 0.007%(1 kHz, 50W, 6 )  
Frequency response  
LINE (FRONT, CENTER, SURROUND)  
....................................................... 20 Hz ~ 70 kHz, +0 dB, –3 dB  
Signal to noise ratio (IHF’66)  
FRONT (1kHz, 1% T.H.D. at 6 )............................. 55 W + 55 W  
CENTER (1kHz, 1% T.H.D. at 6 )....................................... 55 W  
SURROUND (1kHz, 1% T.H.D. at 3 ) .................... 30 W + 30 W  
Total harm onic distortion  
LINE ........................................................................................ 105 dB  
Input sensitivity / im pedance  
LINE ................................................................................. 1 V / 47 kΩ  
[For the UK] ............................................. 0.007%(1 kHz, 40W, 6 )  
[For other countries] .............................. 0.007%(1 kHz, 50W, 6 )  
Frequency response  
LINE (FRONT, CENTER, SURROUND)  
....................................................... 20 Hz ~ 70 kHz, +0 dB, –3 dB  
Signal to noise ratio (IHF’66)  
LINE ........................................................................................ 105 dB  
Input sensitivity / im pedance  
LINE ................................................................................. 1 V / 47 kΩ  
Output level / im pedance  
GENERAL  
Pow er consum ption  
[For the U.S.A. and Canada] ....................................................... 4 A  
[Except for the U.S.A. and Canada] ..................................... 330 W  
AC outlet  
SUBWOOFER PREOUT .............................................. 1.6 V / 2.2 kΩ  
[For the U.S.A. and Canada]  
UNSWITCHED ................................. 1 (total 200 W, 1.6 A m ax.)  
[Except for the U.S.A. and Canada]  
UNSWITCHED ............................................ 1 (total 200 W m ax.)  
Dim ensions ....................................................... W : 400 m m (15-3/ 4")  
H : 140 m m (5-1/ 2")  
GENERAL  
Pow er consum ption  
[For the U.S.A. and Canada] ....................................................... 3 A  
[Except for the U.S.A. and Canada] ..................................... 200 W  
AC outlet  
D : 383 m m (15-1/ 16")  
Weight (Net) ............................................................... 10.6 kg (23.4 lb)  
[For the U.S.A. and Canada]  
UNSWITCHED ................................. 1 (total 200 W, 1.6 A m ax.)  
[Except for the U.S.A. and Canada]  
1. KENWOOD follows a policy of continuous advancements in  
development. Forthis reason specifications maybe changed  
without notice.  
2. Sufficient performance may not be possible at very low  
temperatures.  
UNSWITCHED ............................................ 1 (total 200 W m ax.)  
Dim ensions ....................................................... W : 400 m m (15-3/ 4")  
H : 140 m m (5-1/ 2")  
D : 383 m m (15-1/ 16")  
Weight (Net) ................................................................. 9.7 kg (21.4 lb)  
NNootteess  
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 dealer for  
information or service on this product.  
Model  
Serial Number  

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