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Panasonic WS-A80 Manual

1. Mounting hole 1 1 2 38 fT ep Thumb screw Accessory NOTE Numbers in parentheses refer to millimeters INDUSTRIAL AUDIO DEPARTMENT MATSUSHITA ELECTRIC OF CANADA LIMITED 5770 Ambler Drive Mississauga Ontario LAW 2T3 416 624 5010 BNO386 0 A8QA0703AN Printed in Japan
2. SPEAKER SYSTEM WS A80 Panasonic Before operating this set please read these instructions completely GENERAL This speaker system is a Z vay bass reflex type speaker system incorporating a 20cm B woofer and a Twin Bessel horn tweeter having constant directivity It is designed to accept a continuous program input of 160W This speaker system is ideally suited as a main speaker The compact design assures full porta bility and easy installation The tweeter and woofer are each equipped with an auto reset type thermal protector to protect them against excessive input levels The Twin Bessel horn is designed ta minimize the reflection of sound from the open end of the horn and to provide a directivity of 60 horizontal by BO vertical This improvement in the constant directivity is effective in eliminating feedback The enclosure is a resin molded type and can be set in any desired position The recessed handles and close cantour design prevent impact damage in transit while the rigid weather and temperature resistant cabinet insures long term reliability The enclosure features a stacking structure to enable secure stacking of speakers The front af the enclosure is covered with a punched metal grille to protect the woofer and tweeter The speaker input jacks phone plugs can be replaced with X LR type connectors CAUTIONS FOR INSTALLATION When installing the speaker on a wall or ceil
3. bottom Screw 1 3 Clamp i Insert set screw Bushing i oe Inner tooth washer er i Latch 7 Sheli gt D Insulating tube nN Black No 3 pin Insert ass y Red ING ine E Disassembly diagram of typical Male XLR plug E nh Red amp Bushing T po No 2 pin irm nsert set screw o Set Female Male XLR XLR 8 Secure the XLR type connectors with the screws which were removed in step as illustrated Shell Insulating tube CO Insulator M A T t I I 1 i I I I I I i 1 I I I 1 l I I 4 NOTE e When using XLR type connectors observe the polarity as shown below XLR Binding head tap ping screws B M3 x 16 us screws re 9 E moved in step 4 POWER HANDLING CAPACITY The maximum input to the speaker is 160W continuous program Care should be taken not to apply excessive input or abnormal signals to the speaker When using a high output amplifier be careful of setting the amplifier volume control to avoid excessive input Even when an amplifier with maximum output of less than 160W is used if the input signal is too large or the volume control is s
4. case turn down the volume control of the amplifier and wait until the protection circuit is automatically reset about 2 to 20 seconds t If during operation of the protection circuit the ampli fier volume level is not reduced or it is increased after the sound has become low the protection circuit will operate repeatedly which may damage the speaker BLOCK DIAGRAM PHONE JACK PHONE JACK WOOFER PROTECTOR PUSH TERMINAL TWEETER PROTECTOR WOOFER INSTALLATION EXAMPLES On a speaker stand a Asa foldback speaker The speaker can be mounted on a speaker stand allow A stand such as shown below may be inserted into the ing extra flexibility in selecting a location holes on the rear of the cabinet so that it can lean back and be used for Foldback Stand Place the speaker in the upright position a Wall or ceiling mount The speaker can be mounted on a wall or hung from the ceiling using a suitable bracket Note These stands and brackets are not supplied CAUTION For safest mounting and to avoid damage to the mount ing threads use the mounting screws provided and hand tighten only if selecting mounting screws from an outside source please refer to effective depth of screw described in the Appearance section of this manual SPECIFICATIONS AND ACCESSORIES Specifications Type 2 way bass reflex type Input impedance 8 ohms H Powe
5. el the combined impedance becomes 4 ohms In this case the speakers should be connected to an amplifier which is designed to drive a load impedance of 4 ohms or less NOTES When three or more speakers are connected in parallel the combined impedance becomes 3 ohms or less which requires a special type of amplifier Therefore do not use more than two speakers for parallel connection f the combined impedance of the speakers is lower than the specified impedance on the amplifier to be used the sound from the speakers may be distorted or the amplifier may be damaged When two speakers are used in parallel make sure that the polarity of these speakers are the same USE OF XLR TYPE CONNECTOR This speaker may be fitted with an XLR type connector For connection use XLR type plug which is often used for professional applications i Remove the phone jack mounting plate and pull it for ward iscorinBet the wiring Phone jack mounting plate Male type XLR plug gt Binding head tapping screws B M3 x 16 L E Use these screws for mounting the XLR type connector From amplifier To the second speaker output speaker in par terminal allel connection 3 Solder the leads that were disconnected in step Tas shown below pon pin 2 O on pin 3 mount a female E DERE CPI RETOURNER type XLR on the top and a male type XLR on the Disassembly diagram of typical Female XLR plug
6. et to too high a position the ampli fier output may be distorted possibly damaging the speakers Special care should be directed to the amplifier input and output levels When bass and treble levels are increased by the tone control loudness contro or equalizer of the amplifier a large power is applied to the speaker So the volume control should be set with care PROTECTION CIRCUIT When the following special signals are applied to the speaker system a large current flows into the speaker which may result in damage to the voice coil even when such signals are below the maximum input level in this case be sure to turn down the volume control of the amplifier 1 Inter station noise in FM broadcast 2 High frequency noise during fast forward or rewind operation of a tape deck 3 Feedback from microphones or electronic musical instruments 4 Shock noise caused when the power switch of the amplifier or condenser microphone is turned on or off or at connection and disconnection of the input output terminals 5 Continuous high or low frequency signal developed from an oscillator or electronic musical instrument music synthesizer The speaker has a protection circuit When an excessive input is applied to the speaker the protection circuit is activated to attenuate the input level When the protection circuit is activated the sound pressure level of the woofer issharply reduced and tweeter is cut off In this
7. ier output terminals a O installation of additional speakers Connect the speakers in parallel as shown below From amptifier output terminals se AR me From amplifier output terminals output terminals Depress the push terminal and insert the speaker cable from the amplifier into the e k is of rand terminal hole The plus side is When the speaker cable is of a strand marked red and the minus side NG TS phone plug NN N x plugs as an input terminal When x connecting make sure that the NOTES The cable which fits in the hole of the push terminal should have a diameter not larger than 7 64 2 6 mm To ensure proper fit to the terminal a cable diameter of less than 5 64 2 mm is recommended The sheath of the speaker cable should not be inserted into the terminal hole From amplifier ed type the core conductor should be twisted before inserting it into the terminal hole NOTES Connect the speaker cable to a tip sleeve TS phone plug then connect it to either jack The other jack is then used when installing an additional speaker in parallel The speaker uses a TS phone sleeve Plug cover polarity of the TS phone plug l matches the polarity of the am plifier output terminals speak er terminal as shown in the illustration tip Speaker cable lt e a o a a a When two speakers are connected in parall
8. ing it should be secured firmly using rigid anchor bolts to prevent it from coming off e f the speaker is operated at high output levels the floor wall or ceiling may vibrate which will impair the sound quality Special care should be taken to prevent reso nance and vibrations caused by the mounting angles The speaker can be mounted vertically or horizontally Select a suitable mounting position according to the place of installation Please note that the direction of the RAMSA logo cannot be changed CAUTIONS FOR CONNECTION Before connecting the speaker be sure to turn off the amplifier power switch The input impedance of this speaker is 8 ohms Check to make sure that the amplifier to be con nected is designed to be used with speakers with a 4 to 8 ohms impedance rating l The connecting cable used for the speaker and ampli fier should be as large as possible in diameter to minimize the DC resistance When two or more speakers are to be used in the same room be sure to match the polarity The plus and minus push terminal of each speaker are marked red and black respectively Up to two speakers may be connected in parallel CONNECTION OF SPEAKER CABLES There are two types of speaker input terminals which should be selected according to applications The three terminals are internally connected in parallel Use of push terminals marked black From amplif
9. r handling capacity 160W continuous program input 80W RMS Sound pressure level 92 dB 1W 1m Frequency response 65 to 20 000 Hz Crossover frequency 2 500 Hz Speaker Woofer 20cm 8 cone speaker Tweeter Twin Bessel horn speaker Dispersion 60 horizontal x 60 vertical Dimensions 171 16 W x 11 1 8 H x 9 5 16 D 434mm 282mm 237mm Weight Approx 16 5 Ibs 7 5 kg Finish Enclosure Resin molded black Front panel Punched grille black True effective power measured by the test method In this test a noise signal with an increased high fre prescribed by AMERICAN NATIONAL STANDARD quency power component was used as a test signal to EIA Electronic Industries Association RS 426 A match the latest program sources 1980 Accessories Operating Instructions 1 Thumb screw M8 x 25 2 TYPICAL RESPONSE C1W Tm idB i 100 90 t F 80 Rig i amp ro P ME PHI SERT S l 8 ML ETT TIE i 8 5 AL co FUE PS M DER MN k Frequency Hz 8 DIRECTIVITY pans TX A A 7 APPEARANCE Mounting hole 5 1 16 128 Mounting hole Panasonic Industrial Company AUDIO VIDEO SYSTEMS GROUP PROFESSIONAL AUDIO SYSTEMS One Panasonic Way Secaucus NJ 07094 201 348 7470 Mounting hole Etfective depth i MAXe3 8 9 H2 MINo3 16 4 8 D5 9 32 134 7 7 8 200

Panasonic WS-A80 Manual

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