Panasonic RAMSA WS-AT200 Manuel utilisateur

Speaker System

WS-AT200

Subwoofer System

WS-AT250

Before attempting to connect or operate this product, please read these instructions completely

CONTENTS

REGULATORY STATEMENTS ............................................................................ 2

SAFETY INSTRUCTIONS .................................................................................... 2

PREFACE ............................................................................................................ 3

PRECAUTIONS ................................................................................................... 3

INSTALLING THE SPEAKER .............................................................................. 4

CONNECTING SPEAKER CABLES .................................................................... 6

WIRING CONNECTOR AND CABLE .................................................................. 7

SETTING THE SUBWOOFER PROCESSOR ....................................................... 8

PROTECTION CIRCUITS FOR WS-AT200 .......................................................... 8

SYSTEM DIAGRAM ............................................................................................ 8

BLOCK DIAGRAM .............................................................................................. 9

SPECIFICATIONS ............................................................................................... 9

TYPICAL PERFORMANCE .................................................................................. 10

DIRECTIVITY ....................................................................................................... 10

APPEARANCE .................................................................................................... 11

WS-AT200

WS-AT250

-2-

Please observe the following instructions carefully for your own safety and that of equipment.

• If the speakers fall, it can cause serious damage to persons or properties.

• Read the instructions printed on the back of the speakers.

• Ask your nearest dealer or qualified installers for installation and wiring.

• Place the speakers on a stable surface.

• Secure the speakers with safety wires or equivalent.

• Detach the speaker and the speaker stand before adjusting their height.

• Separate the speaker and the speaker stand before moving the set to a different location.

• Do not install the speaker with the stand at a place where passers-by might stumble on them.

SAFETY INSTRUCTIONS

WARNING:

TO PREVENT FIRE OR ELECTRIC SHOCK HAZARD,

DO NOT EXPOSE THIS APPLIANCE TO RAIN OR

MOIS

TURE.

The serial number of this product may be found on the back

of the unit.

You should note the serial number of this unit in the space

provided and retain this book as a permanent record of your

purchase to aid identification in the event of theft.

Model No.

Serial No.

REGULATORY STATEMENTS

-3-

WS-AT200

• This speaker system is a 2-way bass-reflex type

incorporating a 30-cm (12”) woofer and a Square

Contour Wave Guide (SCWG) horn tweeter.

• The speaker system accepts a continuous program

input of 300 W or 150 W (RMS). It delivers high out-

puts from its compact body with a maximum sound

pressure level of 121 dB.

• The SCWG horn minimizes the disturbing reflection

sound generated near the open end and to provide

a constant directivity of 90˚ (horizontal) and 40˚

(vertical). You can easily attach again the horn to

the enclosure by turning it 90˚ as required for hori-

zontal or vertical speaker installation.

• The enclosure has essential features such as

toughness to transportation, a recessed type han-

dle for carrying, the convex and concave for stack-

ing, holes for mounting bracket, safety wires, etc.

PREFACE

WS-AT250

• This Subwoofer is a bass-reflex type incorporating a

20-cm (12”) cone speaker and to be used with the

RAMSA Subwoofer Processor WS-SP2A.

• The WS-AT250 accepts an input of 400 W (RMS). It

delivers high outputs, though it is small in size, with

a maximum sound pressure level of 117 dB.

• The enclosure has essential features such as

toughness to transportation, a recessed type han-

dle for carrying, the convex and concave for stack-

ing, holes for mounting bracket, safety wires, etc.

PRECAUTIONS

*High frequency noise developed by fast-forward

or fast-rewind operation of a tapedeck

*Out of tune noise in FM broadcast

*Feed-back from microphones or electronics

musical instruments

• Match the polarities of all the speakers by observing

the connectors and wire colours when using two or

more speakers.

• Read “PROTECTION CIRCUITS” on page 8. Turn

down the volume control of the amplifier immediate-

ly if the sound suddenly decreases.

• You should use the WS-AT250 Subwoofer all the

time with Subwoofer Processor WS-SP2A. The WS-

SP2A processes the signal to protect the speakers

from damage due to an excessive input signal.

• Power loss may increase as the total speaker

impedance gets lower with a number of speaker

hookups. Use the largest speaker cable in wire

gauge to reduce power loss.

• Switch off the power amplifiers before connecting

the speakers or other peripherals.

• Avoid the followings all the time to protect the

speakers from damage.

*Turning on and off mixing consoles and other

peripherals may cause shock noise when the

amplifiers and subwoofer processor are on

*Shock noise resulting from the connection/ dis-

connection of inputs/outputs with any powered-

up equipment

*Pop noise from microphones without appropri-

ate use of breath-pop screen and/or high-pass

filter

*Click noise caused by switching on or off the

phantom power for microphones

*Continuous operation at very low frequency from

an oscillator, synthesizer or program sources.

-4-

• Changing the tweeter direction

You can alter the directivity when placing the WS-

AT200 horizontally.

1. Unscrew four bolts to detach the tweeter.

2. Turn the tweeter by 90˚.

3. Tighten four bolts to attach the tweeter again.

4. Rotate the RAMSA badge by 90˚.

INSTALLING THE SPEAKER

• Stacking

Speakers can be stacked one upon another as illustrat-

ed.

Place an additional speaker on top of another, making

sure to match their convex and concave portions.

Do not place stacked speakers on an unstable surface.

If the surface is uneven, not level, or vibrating, the

stacked speakers may fall down and cause injuries.

Sound dispersion angles

-5-

• On wall or ceiling

You can install the speaker on a wall or ceiling with a

mounting bracket (not supplied).

qPlace the bracket on the enclosure.

wScrew the eye bolts into the screw holes of the

enclosure by hand.

eFix the speaker to a wall or ceiling.

rTake safety protections mentioned in “Secure the

speaker.”

Note: Installers should seek advice on the building

structure and load capacity, if unknown, from

an architect or a structural engineer.

• Secure the Speaker

Use safety wires (not supplied) when hanging the

speaker from a wall or ceiling. This is not a major

means of support but just a safety relief.

qTighten the eye bolts with washers and bolt nuts

(not supplied) into the screw holes of the enclosure

by hand.

wSet the direction of the eye bolts to be in the best

position for binding safety wires.

eFasten the bolt nuts with wrench.

rBind one end of safety wires to the eye bolts.

tSecure the other end of safety wires to the support-

ing structure of the building.

• Mounting on a stand

1. You can mount the speaker on a speaker stand by

using the stand hole in the enclosure bottom.

2. The stand should have a supporting pipe of ø1.5

inches.

3. Take safety protections by placing it in a safety

location, for exemple.

INSTALLING THE SPEAKER

Eye Bolt

Washer

Set direction

Bolt nut

Tighten with wrench

Hand

tighten

Hand

tighten

Insert

Mounting

bracket

Stand hole

(Bottom side)

-6-

You can find the TS (tip-sleeve) phone jack and

SPEAKON connector on the back of the enclosure.

These two are usable as input or output terminals since

they are wired in parallel. See the block diagram on

page 9.

CONNECTING SPEAKER CABLES

Notes:

• Do not connect more than two speakers in parallel.

Excessively low impedance can cause distorted

output sound or damage to the amplifier.

• Match the sound phase of all speakers by confirm-

ing the polarities of connection when using two or

more speakers.

1. Connect signal input from an amplifier to either TS

phone jack or SPEAKON connector.

2. Bridge the first speaker and the second when using

two speakers in parallel as illustrated.

From

amplifier

From

amplifier

From

amplifier

From

amplifier

SPEAKON connector

TS phone jack

-7-

WIRING CONNECTOR AND CABLE

Cap

Cable clamp

Loosen screws.

Push

Cable

Tighten the screw.

Solder here.

Push to the end.

Convex

Concave

Cap

AMP OUT SPEAKON

+1+

1 –

(Not used)

2 +

(Not used)

2 –

–

Terminal block



Connector sleeve

Push

Plug Cover

Speaker Cable

Sleeve

Tip

AMP OUT Plug

+ Tip

– Sleeve

TS (tip-sleeve) phone plug

1. Unscrew the plug cover.

2. Thread speaker cables through the plug cover.

3. Connect and solder the + (positive) polarity wire to

the tip of the plug.

4. Connect and solder the – (negative) polarity wire to

the sleeve of the plug.

5. Tighten cable with the clamp of the plug.

6. Fasten the plug cover.

SPEAKON connector

Use SPEAKON connector (4-pole, NL4FC series, by

NEUTRIK AG) as followings.

qUnscrew the connector cap by rotating it counter-

clockwise.

wSlide the cable clamp out from the rear of the con-

nector.

ePush and separate the connector sleeve from the

terminal block.

rPass the connector cap and cable clamp over the

end of the cable.

tLoosen the clamping screws in the terminal block.

yPrepare and insert the wires into the terminals as

shown in the table.

uTighten the screws to secure the wires.

iFor added security in portable applications, solder-

ing of the wires together with the terminals is recom-

mended.

oAssemble the terminal block and the connector

sleeve after matching the positions of the concave

and the convex.

!0 Match the convex position of the cable clamp to the

concave of the connector sleeve, then push the

cable clamp.

!11 Screw the connector cap.

-8-

SETTING THE SUBWOOFER PROCESSOR

PROTECTION CIRCUITS FOR WS-AT200

SYSTEM DIAGRAM

Audio

Mixer WS-SP2A

Subwoofer

Processor

In A

In B

Amplifier

150W

400W

BTL

400W

BTL

WS-AT200

WS-AT250

The WS-AT200 has separate overload protection cir-

cuits for woofer and tweeter. When activated by an

excessive input signal, they mute the output sound.

Turn down the volume control for 2 to 20 seconds to

reset the circuits.

A B VLFI VLFI

123 123 123

WS-AT250

SUB WOOFER MAIN SPEAKER

RECOMMENDED FUNCTION SELECTOR SETTING

FUNCTION SELECTOR POSITION

WS-AT200

For further details please refer to the Operating Instructions of the RAMSA Subwoofer Processor WS-SP2A.

Note: Make sure to lower the volume control of the

amplifiers if the output sound suddenly decreases.

Keeping or even increasing the volume can cause

serious damage to the speaker.

This shows an example of system connections.

-9-

WS-AT200 WS-AT250

Type 2 Way, Bass-reflex type Bass–reflex type

Input impedance 8 Ω

Power capacity 300 W (continuous program input) 400W (RMS)

150 W (RMS) —

Sound Pressure Level 99 dB [1 W, 1m (3.3 ft)] 92 dB [1 W, 1m (3.3 ft)]

Max. Sound Pressure Level 121 dB [1m (3.3 ft)] 118 dB [1m (3.3 ft)]

Frequency response 70 Hz - 18 000 Hz 30 Hz - 1 400 Hz

Crossover frequency 2400 Hz —

Speaker

Woofer 30 cm (12”) cone speaker 30 cm (12”) cone speaker

Tweeter SCWG horn speaker —

Dispersion 90°(horizontal), 40°(vertical) —

Dimensions 394 (W) x 577 (H) x300 (D) mm [15-1/2” (W) x 22-3/4” (H) x 11-13/16” (D) ]

Weight 15 kg (33.1 lbs.)

Finish

Enclosure Resin molded, Blue black

Front panel Punched grille, Blue black

Standard accessories Eyebolt (M8 x 25) ........................................... 2

Operating Instructions .................................... 1

BLOCK DIAGRAM

SPECIFICATIONS

Phone jack

SPEAKON

Connector

Tweeter

Woofer

Tweeter

Protector

Woofer

Protector

HPF

LPF

Phone jack

SPEAKON

Connector Woofer

WS-AT200

WS-AT250

• Dimensions and weight indicated are approximate.

• Specifications are subject to change without notice.

• True effective power measured by the test method prescribed by American National Standard EIA (Electronic Industries

Association), RS-426-A (1980).

In this test, the noise signal with a higher frequency power component was used to match the latest program sources.

-10-

TYPICAL PERFORMANCE

0°

30°

60°

90°

330°

300°

270°

240°

210°

120°

150°

180°

10 30 40

02010

0°

30°

60°

90°

330°

300°

270°

240°

210°

120°

150°

180°

10 30 40

02010

■WS-AT200 ■WS-AT250

DIRECTIVITY

■WS-AT200

Horizontal Vertical

120

[dB][Ω]

110

100

90 800

80 250

70 80

60 25

50 8

40 2.5

30 0.8

2010 20 50 100 200 500 1k 2k 5k 10k 20k

[Hz]

Frequency

Sound Pressure Level

110

100

10 20 50 100 200 500 1K 2K 5K 10K 20K Hz

Frequency

Sound Pressure Level

500Hz

1000Hz

2000Hz

4000Hz

Ce manuel convient aux modèles suivants

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