Panasonic RAMSA WP-1200 User manual

Орегаш
instructions
RAMSA | WP-1200/WP- 1400

CONTENTS
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WARNING:
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
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GENERAL
Panasonic's new RAMSA power amplifiers WP-1200,
WP-1400 are high performance for the high density,
powerful, high-quality sound musicians demand. And to
maintain the optimum operating temperature, WP- 1200 and
WP-1400 features the newly developed servo cooling
System which is constantly adjusted the fan speed
regardless of output level.
FEATURES
е
The WP-1200, WP-1400 are 2-channel power
amplifiers providing continuous outputs of 200W (RMS)
+ 200W (RMS) [WP- 1200], 400W (RMS) + 400W [RMS]
[WP-1400] (THD 0.3% or less with 4-ohm load, 40 Hz to
20 KHz). At 8-ohm load : 120W (RMS) + 120W (RMS)
IWP-1200], 240W (RMS) + 240W (RMS) [WP-1400]
continuous output (THD 0.3% or less with 8-ohm load,
20 Hz to 20 KHz) can be obtained.
In bridge mono mode the power amplifier provides
a 400W (RMS) [WP-1200], 800W (RMS) [WP- 1400]
output (THD 0.3% or less for 8-ohm load, 20 H2 to 20
KHz).
The input circuit is electronically balanced employing
an operational amplifier of excellent transient response
and wide bandwidth. As a result, deterioration of
response caused by the transformer and the effects
of induction noise are minimized.
Two types of input connectors are provided XLR type
connectors (female) and 1/4” TRS phone jacks.
PRECAUTIONS
Do not stand the amplifier vertically on its back.
Due to the muting circuit, no sound is produced for 4 to
6 seconds after turning on the power supply.
Always use a power source of adequate capacity.
Do not turn on the power of multiple power amplifiers
at the same time. Never allow the ventilation holes on
the Front and Rear of the amplifier to get obstructed in
any way.
Speaker safety is further assured by CROW-BAR circuitry
which operates when DC voltage is generated at the output
terminals due to amplifier malfunction.
The amplifier is protected by a Vi-type energy limiter
(voltage/current sensing protection circuit) that limits
the current in the event of a short circuit and cuts off the
output in the event of malfunction such as overheating
or DC.
The muting circuit prevents switching noise caused by
turning the amplifier on or off.
Input level adjustment controls are provided on each
channel,
5 way binding posts are provided as output terminals.
These posts are evenly-spaced, enabling the use of
dual-banana plugs for either individual channel output,
or bridge mode.
A ventilation fan prevents the amplifier from
overheating when properly installed.
These amplifiers are power efficient due to the Class
H power output circuit.
Output terminal CROW-BAR ОС detection circuit
protects the speakers. .
Front-panel LED's indicate peak signal and protect
mode.
The automatic fan control circuit varies the fan speed
as needed by sensing the temperature of the heat sink
and the power transformer.
To clean the amplifier, wipe it with a dry cloth. If the
case is very dirty, disconnect the AC cord from the
power source, then wipe it with a cloth dampened in
water or mild soapy water, then wipe dry thoroughly.
Never use solvents or chemical cloth, similarly, never
spray insecticides as they may cause discoloration or
peeling.
If any trouble is found, disconnect the power cord and
contact your dealer.

MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS
₪ 0 |
e Front Panel: e Rear Panel:
B WP-1400
е Front Pane! : e RearPanel:
1. Power ON/OFF switch [POWER] 2. Peak level indicator [PEAK (red) A]
e The power amplifier reaches the operating When this LED lights, the output signal of the A channel
conditions 4 to 6 seconds after turning on the has reached its clipping level; possibly resulting in
power ON/OFF switch due to a muting circuit distortion. Should this occur, either adjust the output
which prevents switching noise at power-up. leve! of the mixer or adjust the power amplifier Input
CAUTION
:
Level
control
so
that
the
PEAK
LED
turns
off.
When
using
the
WP-1200/1400
in
a
system
with
other
equipment
such
as
a
mixer,
equalizer,
3.
Peak
level
Indicator,
[PEAK
(red)
B]
|
and
other
signal
processor,
always
turn
the
When
this
LED lights,
the
output signal
of
the
B
channel
amplifier
on
last
as
switching
noise
from
the
other
has
reached
its
clipping
level;
possibly
resulting:
їп.
equipment
can
damage
the
speakers.
Similarly,
at
distortion.
Should
this
occur,
either
adjust the
output
system
power-down
always
turn
the
amplifier
off
level
of
the
mixer
or
adjust
the
power
amplifier
Input
first.
|
Level
control
so
that
the
PEAK
LED turns
off.

10.
11.
> А
Protect indicator [PROTECT (orange) B]
The LED indicates that the muting circuit for the B
channel ís activated and therefore sound cannot be
produced at the output. This occurs for 4 to 6
seconds when the amplifier is turned on, and also
during overheating or any malfunction that may cause
damage to the speakers.
Power ON indicator [POWER] (red)
Indicates that the amplifier is turned on.
Protect Indicator [PROTECT (orange) A]
The LED indicates that the muting circuit for the A
channel is activated and therefore sound cannot be
produced at the output. This occurs for 4 to 6
seconds when the amplifier is turned on, and also
during overheating or any malfunction that may cause
damage to the speakers.
Mode selector [MODE]
[STEREO A В, BRIDGE A ONLY]
Selects between STEREO mode (A in/A out, B in/B
out) or BRIDGE mode (A in/A & B combined out). When
using Bridge Mode the input signal must be applied to
the A Channel only.
Input level control [INPUT LEVEL B]
e When this control is at "10", the B channel will
reach its rated power output when the input signal
is at a level of + 4 dB. |
e Thecalibrated markings on the front panel indicate
the amount of attenuation applied to the input
signal. The allows proper volume setting of the
speakers when the input signal source is at its
rated level,
Output terminals
[OUTPUT MAX LOAD 400/40 PER CHANNEL]
в 0
è Bohms .................... 120W + 120W (RMS)
e 4ohms .................... 200W + 200W (RMS)
e Bridge (8 ohms) .................. 400W (RMS)
е When using in bridge mode, the + side of the A CH
output terminals becomes the hot side, and the +
side of the B CH output terminal becomes the cold.
Ш WP-1400
e Bohms.. rr 240W 4 240W (RMS)
6. X ONMS .................... 400W + 400W (RMS)
e Bridge(Bohms) .................. 800W (RMS)
е When using in bridge mode, the + side of the A CH
output terminals becomes the hot side, and the +
side of the 8 CH output terminal becomes the cold.
CAUTIONS :
e Donotconnect the output channels in parallel.
e When using bridge connection always use
minimum B ohm speakers. Never connect the
speakers between + and — of A CH, ог + and
— of B CH.
Ground terminal [GND]
An external amplifier ground terminal.
AC Power cord
120V AC 60 Hz - approx. 6.5 feet.
12. Rear panel protection angle
These angles protect the input and output terminals
against damage. However, do not stand the power
amplifier on them during performance.
13. Input level contro! [INPUT LEVEL A]
e When this control is at *10", the A channel will
reach its rated power output when the input signal
is at a level of + 4 dB. Use this control when running
the amplifier in BRIDGE mode.
е Thecalibrated markings on the front panel indicate
the amount of attenuation applied to the input
signal. The allows proper volume setting of the
speakers when the input signal source is at its
rated level.
14. Input connectors [INPUT A, B +4 dB, 40 КОЈ
е Two types of input connectors are provided :
XLR-type connectors (female) and 1/4" tip-
ring-sleeve phone jack.
e These input connectors are connected in parallel
internally. Do not connect more than one input
signal to these connectors at the same time.
e When using amplifier in bridge mono mode,
connect the input signal to A channel only. Any
signal connected to B channel will not be passed. .

CONNECTIONS | 2
For 1 input : [BRIDGE]
е WP-1200 е WP-1400
INPUT [A] INPUT [A]
BRIDGE
A ONLY (в CH 9
= BRIDGE
Speaker А ONLY [B] CH Ф
- Speaker
72 р
For 2 inputs : [STEREO]
[АЈ CH Speaker
[8] CH Speaker
STEREO A:B (А) CH Speaker
(B] CH Speaker
STEREO А-В
CAUTIONS :
e Connect the speakers after selecting either bridge or
stereo.
e When using bridge connection, never connect the
speakers between + and — of A CH or B CH.
BM Connection of Plugs and Connectors :
1. Input connector (3-pin XLR-type female connector)
C (cold) H (hot)
No.1
ground
No.2
Screw 2 hot
$
мо
= No3
[Ground] ac Dek cold
Wiring of 3 |
input
terminal
[Male]
2.
Tip-ring-sleeve
phone
plug
C (cold)
Но! Ground Solder 7 y (hot)
Cold Solder E (ground) |
Shielding wire

RACK MOUNTING
1. Remove the screws which are inside the rubber feet,
then detach the feet from the bottom of the amplifier.
2. Mount Ше power amplifier to the rack as shown
with four optional rack mounting screws (not supplied,
M5x 12).
Rubber feet
9 Де.
EIA rack
Screws
v OU wu vw
ב
—M󰾰
|
п
0
Dove Goose’
| :
?
2.
| Leaf nuts |
Note :
When transporting the machine while mounted in a
rack, the rear of the amplifier must be secured to the
rack. Use an angle with a thickness of at least 2 mm.
Rear-fixing angle :
Local procurement
A Rear-fixing angle for mounting side of rack.
B HRear-fixing angle for mounting on bottom of rack.
C Rear-fixing angle for mounting on rear of rack.

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SPECIFICATIONS
Power supply : 120V AC, 60 Hz
Power consumption : Approx. 770W at the rated output of 200W | Approx. 1500W at rated output of 400W
(RMS) + 200W (ВМ5)/40) (RMS) + 400W (RMS)/4f1
Rated power output : 120W + 120W (82 continuous output) 240W + 240W (80 continuous output)
200W + 200W (40) continuous output) 400W + 400W (42 continuous output)
Mono-bridge output : 400W (ВО continuous output) 800W (80 continuous output)
Frequency response : 20 to 20,000 Hz 40, —0.5 dB (at 1W Output)
Total harmonic distortion : 0.3% or less | 0.3% or less
(ВО, 120W + 120W, 20 Hz to 20 kHz)
0.3% or less
(40, 200W + 200W, 40 Hz to 20 kHz)
0.3% or less 0.3% or less
(BRIDGE) 80, 400W, 20 Hz to 20 kHz) ((BRIDGE) ВО, 800W, 20 Hz to 20 kHz)
Crosstalk : 60 dB or more (20 kHz)
Intermodulation distortion : 0.3% or less 0.3% or less
(80, 240W + 240W, 20 Hz to 20 kHz)
0.3% or less
(40, 400W + 400W, 40 Hz to 20 kHz)
(40, 200W, 60 Hz: 7 kHz- 4: 1 (40, 400W, 60 Hz: 7 kHz- 4: 1
| +4 ав (continuously variable) balanced :
Connectors : Input :
3-pin XLR-type connectors (female), and 1/4" tip-ring-sleeve phone jack
Output :
Screw terminals, (5 way binding post)
Dimensions : 18-7/8" (W) x 4" (Н) x 15-7/16" (D) 18-7/8" (W) x 5-3/4" (Н) x 15-7/16" (D)
480 (W) x 102 (H) x 393 (D) mm 480 (W) x 146 (H) x 393 (D) mm
(Height includes rubber feet and depth (Height includes rubber feet and depth
includes rear panel protection angle) includes rear panel protection angle)
Approx. 26 Ibs. (11.8 kg) Approx. 38.3 Ibs. (17.4 kg)
Weight :

APPEARANCE
Unit : inch (mm)
И WP-1200
1-5/16" (33)
|
|
|
13-3/4" (350)
16-1/2" (420)
18-7/8" (480)
3-7/16" (88)
—
9/16“ (14)