C. S. I. PROFESSIONAL SERIES
P-240A
240 WATTS RMS
POWER AMPLIFIER
FOR ASSISTANCE OR REPAIR SERVICE CONTACT
200 NEW HIGHWAY P.O. BOX 726
AMITYVILLE, N.Y. 11701 - 0726
631-957-8700 1-800-645-5516
INS TRUCTION MANUAL
ATTENTION INSTALLER
BEFORE INSTALLING THIS EQUIPMENT,PLEASE READ THE
INSTRUCTION MANUAL THOROUGHLY. IF YOU ARE NOT
TOTALLY FAMILIAR WITH THE INSTALLATION OF THIS TYPE
OF APPARATUS, PLEASE SECURE THE ASSISTANCE OF A
QUALIFIED TECHNICIAN. IF THE UNIT IS NOT CONNECTED
PROPERLY, DAMAGE MAY RESULT AND YOUR WARRANTY
MAYBEVOIDED.
14
Specifications
AMPLIFIER SECTION
Rated output...........................................................................240W(RMS)
Frequency response .........................................................30Hz to 20KHz
Signal to Noise Ratio .......................................................................90dB
Input Sensitivity/Impedance ..................................................1V/10K ohms
Speaker output/Impedanc....................... .4 ohms, 8 ohms, 25V(2.6 ohms)
(70V/(20.4ohms)
General
Power source ..................................AC 110V/120V or 220V/240V 50/60Hz
Power Consumption ........................................................................450W
Dimensions ..............................................420W(16½ ')x130H(5')x290D(11')
Weight(Net) ......................................................................24 lbs.(11.5Kg)
For rack mounting use RKMB-4 rack mount kit.
NOTE : Specifications and design subject to change without notice.
Unpacking and Installation
Although it is neither complicated to install nor difficult to operate your
power amplifier, a few minutes of your time is required to read this manual
for properly wired installation and becoming familiar with its features and
how to use them. Please take great care in unpacking your set and do not
discard the carton and other packing materials. They may be needed when
moving your set or if it ever becomes necessary to return your set for
service. Never place the unit near a radiator, in front of heating vents, in
direct sunlight, or in excessively humid or dusty locations. Connect your
complementary components as illustrated on the following pages.
Front Panel controls
1. POWER SWITCH
Pressing this switch to ON will light LED indicator and supply power
to the unit.
2. MASTER VOLUME CONTROL
This control is used for adjusting the output volume.
3. OUTPUT LEVEL DISPLAY
This display indicates the peak output level.
POWER
LEVEL VOL
PROFESSIONAL SERIES
P.A. AMPLIFIER P-240A
LEVEL METER
0
1
2
3
4
5
6
7
8
9
10
-241816126303+dB
1
2
3
32
VOLTAGE AC 110V/120V AC 220V/240V
FUSE RATING 6A/250V 3A/250V
Installation of the Speakers
When connecting or changing speakers, always remove the power cord from
AC outlet, and use the appropriate terminals as below. For 25V and 70V
line, be sure that total impedance is not less than rated impedance.
4 ohm and 8 ohm must be properly impedance matched.
NOTE : These are examples of possible wiring situations. Many other
possibilities exists. Always maintain impedance matching for 4 and 8
ohm connection. Do not exceed the power rating of the amplifier by
connecting more speakers than the unit is rated for. If you are in doubt,
please consult a professional installer.
VOLTAGE 30.98V 43.8V 25V 70V
IMPEDANCE 4 Ω 8 Ω 2.6 Ω 20.4 Ω
Rear Panel Controls
1. Select 110V AC or 220V AC operation with this switch. Then
plug AC cord into AC outlet.
2. FUSE HOLDER(AC)
This fuse holder contains the AC power fuse. Replace only with
same type fuse when it is blown. If it continuously blows, stop
replacing fuse and refer servicing to qualified personnel.
3. SPEAKER OUTPUT TERMINALS
Theseterminalsareforspeakerconnection. Youcanselect4ohmor
8ohm or line outputs or 25V (2.6ohms) and 70V (20.4ohms). Be sure
not to make the total impedance less than rated impedance on 25V
or 70V. 4 ohm and 8 ohm must be matched exactly.
NOTE : Please note that only 25V or 70V terminals should be
connected when using speaker/zone selector.
4. INPUT JACK
Right and left inputs are combined to serve as a " Y " connector
(stereo to mono).
5. COOLING FAN
This Unit incorporates a cooling fan to reduce the operating temperature
of the amplifier. affording better performance and longer operational life.
AC 110V/220VAC
50/60Hz
10AMP
INPUT
CAUTION:TO REDUCE THE RISK OF
FIRE REPLACE ONLY WITH SAME TYPE FUSE
WARNING:TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK DONT EXPOSE THIS
EQUIPMENT TO RAIN OR MOISTURE.
MODEL : P-240A
PROFESSIONAL SERIES
OUTPUT POWER 240W RMS
MADE IN KOREA
CAUTION
TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE TOP COVERS.
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.
220V
110V
AC 110V
FUSE 250V 6A
AC 220V
FUSE 250V 3A
BALANCED OUTPUT
RMS 60W
COM
70V
25V
84
FUSE FUSE
2
1
3
45
COM 4 8 25V 70V
FOR 25V LINE
SPEAKER
OUTPUT
With
Matching
Trans
( figure 2-3 )
COM 4 8 25V 70V
FOR 25V LINE
SPEAKER
OUTPUT
With
Matching
Trans
( figure 2-4 )
COM 4 8 25V 70V
FOR 4 OHM LINE
( figure 2-1 )
SPEAKER
OUTPUT
4 OHM
+
-
+
-
+
-
8 OHM
8 OHM
COM 4 8 25V 70V
FOR 8 OHM LINE
( figure 2-2 )
SPEAKER
OUTPUT
8 OHM
+
-
+
-
+
-
16 OHM
16 OHM
+
+
-
-
4 OHM
4 OHM
/
