Nautilus Manual - Bowers & Wilkins
Contents
1. B amp W 15 EAANVIKG va Tov kiv uvo2. From Pre Amp XLR amp Phono inputs High Frequency Unit RED ROT ROUGE BLACK SCHWARZ NOIR ROJO ROSSO NEGRO NERO VERMELHO ROOD KOKKINO CERVEN PRETO ZWART CZERWONY T ZR CZARNY Upper Mid Range Unit BROWN BRAUN MARRON MAYPO CERNA MARRON MARRONE BLUE BLAU BLEU AZUL AZZURRO CASTANHO BRUIN HN D AZUL BLAUW MME MODR BRAZOWY NIEBIESKI HE Lower Mid Range Unit YELLOW GELB JAUNE GREEN GRUN VERT AMARILLO GIALLO VERDE VERDE AMARELO GEEL KITPINO ZLUT VERDE GROEN TIPAXINO ZELEN TY EE ZIELONY amp amp fex Low Frequency Unit ORANGE ORANGE ORANGE VIOLET VIOLETT VIOLET LARANJA ORANJE ORAN OV NARANJA ARENCIO VIOLETA VIOLETTO VIOLETA PAARS MOB FIALOV POMARANCZOW amp RHOLETOWY 2 K XLR to be used for balanced inputs amp Phono for standard single ended inputs USE ONE ONLY Mains A C in Cable connection Connection to Nautilus is via an 8 core cable of high purity silver on copper terminated in bare ends to allow the most d
3. rj unv apnveTe e krg0gip vn rr CUOKEUT oe fjpoyr rj uypaoia Mnv avoigete To zrr vo k Auppa cuokseurngc va KT Oscire o UWNAN pe paroc va mrpokaA oseti nAekTponAngia Av UTAPYOUV EOWTEPIK TNG CUOKEUNG mou pmopo v va EMmiokeuaoTOUV ro xprjorn OUVTHPNON emiokeur arneuOuv8Osire avTinpoownsia B amp W va Tov kiv uvo nAektporAngiag ouv oreg TN OUOKEUN XPNOINOTOIWVTAg TO OUVOSEUE k rroio avriororyo DPOVTIOTE WOTE ra ug raAAIK TOU gic va ivai rr rjpoq otnv npica Mnv KAVETE orroia rjmore oro piv va TOUG kavoviopoUq y io ong n kai Arrop yere va xpnoiporoirnogT TIPOEKTAOEIC urraAavr Cec pe parog 0a cuv osrse TH cuokeur Tip rizi va yei TA XAPAKTNPIOTIKG Tou avap povrai yia tnv EAAGda 220V 50HZ Av n v a 6a va givai idiou TUTOU HE TNV 0 aAAd ete rrjv TH CUOKEUN EKTOG
4. B amp W Bowersa amp Wilkins B amp W Group Ltd T 44 0 1903 221800 Dale Road F 44 0 1903 221801 Worthing West Sussex infoGbwgroup com BN112BH England www bwspeakers com B amp W Group UK Sales T 44 0 1903 221 500 E uksalesQbwgroup com B amp W Group North America T 1 978 664 2870 E marketing bwgroupusa com B amp W Group Asia T 852 2 790 8903 info bwgroup hk Kevlar is a registered trademark of DuPont Nautilus and Matrix are registered trademarks of B amp W Group Ltd Cobex is a registered trademark of Wardle Storeys Ltd Design Thomas Manss amp Company Printed in the UK B amp W Group Ltd reserves the right to amend details of the specification without notice in line with technical developments Copyright B amp W Group Ltd E amp OE Nautilus owner s manual The Nautilus loudspeakers you have invested in are an exact match to the first production loudspeakers Hand built and tested serial marked and packaged individually the refusal to compromise at any stage from concept to reality is a hallmark quality of Nautilus and your guarantee of absolute satisfaction Loudspeaker A Bass driver Lower midrange driver Upper midrange driver High frequency driver Crossover A Line Insp Tester Packer Random Insp HLILILILIL Quality Control Loudspeaker B Bass driver Lower midrange driver Upper midrange driver High frequency driver Crossover B Con
5. Nederlands Waarschuwingen Om brand of schokken te voorkomen het product nooit blootstellen aan regen en vocht Let vooral ook op waarschuwingen die op het product zelf staan aangegeven Om elektrische schokken te voorkomen het product nooit openen Er bevinden zich in het product geen door de gebruiker zelf te repareren onderdelen Laat alle service aan een geautoriseerde B amp W dealer over Om schokken te voorkomen met deze gepolariseerde netstekker geen verlengsnoer of andere combinatie gebruiken tenzij de pennen geheel kunnen worden ingestoken om te voorkomen dat spanningvoerende delen kunnen worden aangeraakt Controleer of de op het paneel aangegeven netspanning overeenkomt met die ter plaatse Vervang netzekeringen uitsluitend door hetzelfde type met dezelfde waarde als aangegeven op de sticker nabij de lichtnetaansluiting Schakel het product uit en neem de stekker uit het stopcontact voordat u een zekering vervangt Het apparaat dient te worden geaard Om zeker te zijn van voldoende koeling de ventilatiesleuven niet afdekken Zorg ervoor dat er geen vreemde voorwerpen via de ventilatiesleuven kunnen binnendringen Espanol Advertencias Pare prevenir que se produzcan incendios o descargas el ctricas no exponga este producto a la lluvia o la humedad Observe todas las advertencias que figuran en el producto propiamente dicho Para evitar que se produzcan descargas el ctricas no acceda al interior de los
6. Pojistky nap jen sm j b t m n ny pouze za stejn typ s hodnotami odpov daj c mi nap jec mu t tku um st n mu u vstupu pro nap jec kabel P ed v m nou pojistek zcela vypn te p stroj a odpojte nap jec kabel Za zen mus b t uzemn no Aby bylo zabezpe eno adekv tn chlazen p stroje nezakr vejte ni m v trac otvory Do v trac ch otvor tak nestrkejte dn p edm ty KEP REE S Te BICREO DD SERIA HERO S UELLE Bir CC EUW RABKOMICE REEOTER ENNTUVIEERU lt lt EEL RBMILOKH 1770 D 2 81772 LEWNTKTET P EL 756166096 At73 lERPEfk BRL EBS lt REU Polski Ostrze enia Aby unikn po aru lub pora enia pr dem nie wystawiaj tego urz dzenia na dzia anie wilgoci Zwr uwag na wszystkie ostrze enia umieszczone na samym produkcie Aby unikn pora enia pr dem elektrycznym nie otwieraj obudowy Wewn trz nie ma adnych element w kt re m g by obs ugiwa u ytkownik Skieruj wszystkie pytania serwisowe do autoryzowanego sprzedawcy B amp W Aby unikn pora enia pr dem elektrycznym nie u ywaj tej spolaryzowanej wtyczki sieciowej w po czeniu z gniazdem przed u acza lub innym gniazdem je li bolce nie zosta y wsuniete do ko ca Upewnij sie e napi cie oznaczone na panelu odpowiada napi ciu zasilania Wymieniaj bezpieczniki instalacji elektrycznej stosuj c jedynie te o identyczn
7. kai rnv rnv cuoksur va eivai ygiop vn va y yerai ouokeu dev da va lt Ta avoiypata egaspiopo Mnv avTikeiveva enavw rj u oa ora avoiypara amp a piopoU TOU EVIOXUTH PX ee ALATI ARESE BOTA WAAR i RIPSIRIT EIEBUSERD E NARO BARN B amp W THIS Apri 18718 FH TE E EE SR BT PA TR ith SE SECOS RR Ee AIA Mas LBS FB S RR SURE ALARA 3 FH 8 TEM ORE 7 Bj ERRER Ra ERRE 7 BUEHREMUZEATISPSB UBDNGL SEES BA EI UL Cesky Upozorn n Aby jste p ede li nebezpe po ru Ci razu el proudem nevystavujte toto za zen desti i vlhkosti Ve vlastn m z jmu dbejte v ech ostatn ch varov n t kaj c ch se za zen Aby jste p ede li razu elektrick m proudem nesna te se proniknout dovnit v robku Nejsou zde dn d ly kter by u ivatel mohl s m opravovat Pro p padn servis kontaktujte n kter ho z autorizovan ch prodejc B amp W razu el proudem p edejdete tak t m e nebudete pou vat tuto polarizovanou koncovku nap jec ho kabelu spole n s prodlu ovac m kabelem kter pln nezakr v kontakty Dbejte aby nap jen p stroje souhlasilo s daji vyzna en mi na panelu
8. Remove the two pieces of internal packaging using the handholds provided Remove the layer of fibre wadding to reveal the speaker active crossover and accessory pack Place the active crossover and accessory pack aside Depending on the proximity of the plinth to the large crate it may be possible to feed the wires through the slot in the plinth before These notes will explain in depth how to unpack the plinth and speakers Inside this crate is a copy of the Nautilus user manual that will show how to connect the Nautilus loudspeaker system removing the product from the crate Feed the amplifier end of the cable through the slot in the top of the plinth and guide it into the cable cut out at the rear of the plinth Note it may be easier to feed the cable through by supporting the rear end of the plinth on the metal rod supplied in the accessory pack Hemove the metal rod once finished Warning do not lift the speaker using any of its straight tubes or the part of the tweeter enclosure forward of the split line One person should grasp the top of the speaker under the main body of the tweeter enclosure The right hand of the second person should support the speaker on the top of the rounded part of the base the left hand of the second person should support the speaker on the front of the speaker below the bass unit The person supporting the tweeter should lift the speaker tilting it into an upright position while the second
9. dispersion characteristic is the substantially increased listening area in which a pleasant and realistic stereo image may be enjoyed Listening area Installation All connections should be made with the equipment turned off Each Nautilus comes with its own dedicated active crossover network The serial number on the amplifier end of the harness should match the serial number on the rear of the crossover network The crossover can be connected to the amplifiers with Phono leads for unbalanced operation or XLR types for balanced operation Each Nautilus will require 1 separate amplifier channel for each drive unit The gain and phase of each must be identical Each amplifier channel should be capable of delivering at least 3OV RMS into 6 ohms for realistic levels of reproduction Most amplifiers capable of delivering 100 watts into 6 ohms should be suitable Connect each of the 4 crossover outputs LF LMF UMF HF in turn to each amplifier or amplifier channel The loudspeaker harness should then be connected to the appropriate terminals on the corresponding amplifier The input to the crossover should then be connected to the output of the preamplifier Connect the power and turn on the crossover followed by the amplifiers To Power Amp XLR amp Phono Outputs XLR to be used for balanced inputs amp Phono for standard single ended inputs USE ONE TYPE ONLY FOR EACH OUTPUT 9
10. person should support the body of the speaker Before removing the speaker from the crate place the protective cover over the front of the speaker to prevent damage during moving Secure the cover with the belt provided ensuring the length of wadding is placed between the strap and the speaker to protect the enclosure To remove the speaker from the crate the person supporting the speaker should grasp the threaded spigot from which the cable exits at the base of the speaker while the other person supports the front and top of the speaker Ensure the person holding the spigot is positioned to the rear of the speaker so that they can use their free hand to pull the cable through the plinth as the speakers is lowered Attention Please carefully read through these instructions in full before starting to unpack the product Unpacking should be carried out by two people due to the weight of the product and awkwardness of the shape Note Remove all watches rings bracelets belts and any other item of clothing that might scratch the product s surface into position Guide the spigot into the slot in the plinth Once the speaker is in place on the plinth feed first a rubber washer and secondly a metal washer and finally a securing nut from the accessory pack over the free end of the cable and slide them as far as possible to the speaker end One person should lean the speaker plinth combination forward to expose the underside of
11. the plinth While the first person supports the weight of the speaker the second person should feed the washers over the spigot and screw down the nut tightening by hand only Carefully stand the speaker on its plinth upright and position it as required The drive units are delicate and easily damaged Use the plastic cover to protect them for example if the speaker is to remain unused for a long period or if there are inquisitive children about Always secure the cover with the strap and length of wadding provided We suggest you retain the packaging for future use Warning The speaker drive units create stray magnetic fields that extend beyond the boundaries of the enclosure We recommend you keep magnetically sensitive articles CRT type televisions and computer screens computer discs audio and video tapes swipe cards etc at least 1m 40in from the speaker This does not apply to plasma or LCD screens Positioning Placement of any loudspeaker can significantly influence the relative balance of sound in the listening seat and we recommend a degree of experimentation In general it will be found that Nautilus gives optimum results when toed in to a greater extent than in previous systems set typically at an angle of between 60 and 90 This is due to the smooth wide dispersion of Nautilus which is capable of increasing the relative significance of the side wall reflection Another benefit of the
12. was passed to Matrix inventor and top acoustic designer Laurence Dickie with an enviable record of transducer and cabinet problem solving Laurence had been experimenting with drivers mounted in the curved surface of a oylinder and encountered results not dissimilar to those of the dipole Namely that external cabinet effects could be virtually eliminated and the intrinsic sound of the unit heard He used a ring magnet outside the coil with a thin walled cylindrical pole piece to allow a smooth transition from dome to enclosure Only one type of enclosure will provide absolute freedom from aberration the infinite pipe or waveguide Excitingly it became possible to imagine that an entirely waveguide based system could actually work Research showed that the exponentially tapered pipe was an even better absorber than the cylinder So complete was its absorbing action that the pipe could be left open or closed This was the breakthrough Thereafter the usual disciplines of the acoustic engineer s art came into play Juggling the variables of driver diameter dispersion break up excursion practicality and of course economics It was decided that the system should be four way with 300mm 12in 100mm 4in 50mm 2in and 25mm 1in units all mounted in tapered lines within a diffraction limiting enclosure The enclosure evolved from the original oylinder into the sleek rolling vent design you have purchased The massiv
13. Francais Avertissements importants Pour viter tout risque d incendie ou d lectrisation ne jamais exposer ces appareils la pluie ou l humidit Observez rigoureusement tous les avertissements imprim s sur les appareils eux m mes Pour viter tout risque d lectrisation ne jamais ter le capot Il n y a pas de pi ce modifiable par l utilisateur l int rieur En cas de probl me adressez vous votre revendeur agr B amp W Pour viter tout risque d lectrisation ne pas utiliser la prise d alimentation secteur fournie polaris e avec un cordon rallonge ou dans une prise murale qui ne permette pas d utiliser correctement toutes les broches de la prise d origine V rifiez bien avant branchement que la tension d alimentation indiqu e sur le panneau arri re de l appareil est conforme celle de votre installation lectrique Ne remplacez le fusible de protection d alimentation qu avec un modele rigoureusement de m me type et de m me valeur comme indiqu pr s de la prise d alimentation secteur sur l tiquette d indication de la tension d alimentation de votre installation teignez l appareil ET d branchez sa prise d alimentation secteur avant de changer le fusible Cet appareil doit tre mis la terre Pour garantir une ventilation correcte ne pas obstruer les ouies pratiqu es dans le coffret Ne jamais tenter d ins rer des objets dans les orifices de ventilation de l amplificateur
14. able to the loudspeaker Only use attachments accessories recommended by the manufacturer Unplug this apparatus during lightning storms or when unused for long periods of time Similarly unplug all other powered equipment in the installation Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over EN Refer all servicing to qualified personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture The apparatus has Class 1 construction and must be connected to a mains socket outlet with a protective earthing grounding connection The apparatus may be isolated from the mains power supply either by using the power switch located over the power inlet Socket at the rear of the apparatus or by removing the plug from the wall socket outlet Ensure that one or both are readily accessible CAUTION RISK OF ELECTRIC SHOCK DO NOT Caution to reduce the risk of electric shock do not remove the back panel no user serviceabl
15. d be employed between the plinth and nut to eliminate this problem The rubber washer should rest against the plinth If it is not possible to position the crate near the plinth when unpacking the pieces of foam covering Nautilus in the crate can be used to support the loudspeaker close to the plinth within reach of the loudspeaker harness If you need to alter the tilt of the Nautilus French chalk is supplied in the accessory pack to ease movement between the speaker and its plinth If the level of bass is uneven with frequenoy this is usually due to strong excitation of resonance modes in the room Even small changes in the position of the speakers within the listening room can have a profound effect 12 on the perceived sound quality by altering the excitation of these modes Try mounting the speakers along a different wall Even moving large pieces of furniture about can have an effect If the general level of bass is too high try moving the speakers further away from the walls Conversely if you need more bass move the speakers closer to the walls Space behind the speakers also improves the impression of perspective on well recorded material If the sound is too harsh increase the amount of soft furnishing in the room For example use heavier curtains Conversely reduce the amount of soft furnishing if the sound is dull and lifeless Test for flutter echoes by clapping your hands and listening for rapid repetitions The
16. e With suitable pre and power amplifiers one unit is required for each loudspeaker and should be sited close to the power amplifiers A power supply connection for each crossover is required Unpacking A pair of Nautilus is supplied in three crates The two larger crates each contain one Nautilus loudspeaker and one active crossover One of the large crates contains the accessory pack and is marked as such The small crate contains two stone plinths Lay each crate flat on the ground Open the lids using a number 2 pozidrive screwdriver Unscrew all screws before lifting the lid off of the crates Begin with the small crate which holds the plinth to support the product Remove the lid and card separator and set aside The plinth weights approximately 50kg so it requires two people to lift One person should place a hand into the slot in the plinth and raise one end The second person should place one hand on either side of the plinth at the opposite end from the slot Lift the plinth from the crate and gently place it as close as possible to its final installation position Please note the cable cut out end belongs at the back of the speaker Repeat these steps for the second plinth Place each large crate alongside the plinth or as close as possible to the plinth Unscrew all the screws holding the lid on the crate Remove the lid and set aside Remove the strap length of wadding and protective cover and place nearby
17. e parts inside refer servicing to qualified personnel Explanation of Graphical Symbols The lightning flash within an equilateral triangle is intended to alert you to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute an electric shock to persons The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance English Warnings To prevent fire or shock hazard do not expose this equipment to rain or moisture Observe all warnings on the equipment itself To avoid electrical shock do not open the enclosure There are no user serviceable parts inside Refer all service questions to an authorised B amp W dealer To prevent electric shock do not use this polarised power plug with an extension cord receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure Ensure that the voltage indicated on the panel matches that of the power supply Replace mains fuse only with the same type and rating as shown on the voltage label placed near the mains input socket Switch off the power and remove the mains cable from the case before changing the fuse the equipment must be earthed grounded To ensure adequate cooling do not obstruct the ventilation holes Do not insert objects t
18. e rolling vent disposes of rear bass driver radiation whilst the exponential transmission pipes loading the other drive units effectively deal with internal reflection and external diffraction at mid and high frequencies The drive for sonic purity is reinforced by using an active crossover design allowing separate amplification of each drive unit cutting out component crosstalk and driver inter reaction Overall the elimination of straight lines defeats diffraction and helps achieve virtually transparent music reproduction What results is arguably the most musical loudspeaker ever made Enclosure Exponential line loading is used for all four drive units primarily to achieve freedom from resonance and reflection but also for the damping effect on the fundamental resonance in the low frequencies The two dome units are tightly coupled to their respective wave guides via a hollow pole magnet which causes minimal discontinuity to the advancing wave front A hollow pole magnet is also to be found behind the lower mid diaphragm supported by a chassis which itself forms the first 50mm of the wave guide The tube to which this is attached is shaped to smooth the transition from the chassis The distinctive natural appearance of Nautilus is derived from the best compromise of folding a tapered tube to save space whilst maintaining the highest curvature to width ratio Traditionally folded pipes have involved many 180 bends which ha
19. ej warto ci i typie tak jak to pokazano na plakietce mocowej umieszczonej w pobli u gniazdka sieciowego Przed wymian bezpiecznika wy cz zasilanie i wyjmij kabel zasilania z gniazda Sprz t powinien by uziemiony Aby zapewni odpowiednie ch odzenie nie zakrywaj otwor w wentylacyjnych Nie wktadaj adnych obiekt w do otwor w wentylacyjnych wzmacniacza
20. en abweicht Schalten Sie den Strom ab und entfernen Sie das Netzkabel bevor Sie die Sicherung wechseln Das Ger t muss geerdet werden Verdecken Sie die Ventilations ffnungen nicht damit eine ausreichende Luftzirkulation gew hrleistet ist Stecken Sie keine Gegenst nde in die Ventilations ffnungen Portugu s Avisos Para evitar o risco de fogo ou choque el ctrico n o exponha este produto chuva ou humidade Observe todos os avisos no equipamento propriamente dito De forma a evitar choque el ctrico n o abra a tampa N o existem partes repar veis pelo utilizador no interior Coloque todas as quest es de assist ncia a um agente autorizado B amp W Para prevenir choque el ctrico n o utilize esta ficha de alimenta o polarizada com uma extens o ou outra tomada a menos que os pernes sejam inseridos completamente evitando assim a sua exposi o Assegure se que a voltagem indicada no painel coincide com a corrente de sector de alimenta o Substitua o fus vel de corrente apenas por outro do mesmo tipo e especifica o como mostra a etiqueta de voltagem colocada perto da tomada de entrada de corrente Desligue a corrente e retire o cabo de alimenta o da caixa antes de substituir o fus vel O equipamento deve ser ligado terra De molde a assegurar uma ventila o adequada n o obstrua os orif cios de ventila o N o insira objectos atrav s dos orif cios de ventila o
21. filtros activos Consulte cualquier cuesti n relacionada con el mantenimiento del producto a un distribuidor autorizado de B amp W Aseg rese de que la tensi n indicada en el panel del producto concuerde con la de la fuente de alimentaci n Sustituya el fusible de protecci n principal nica y exclusivamente por uno del mismo tipo y valor que el indicado en la etiqueta situada cerca de la toma de alimentaci n Antes de cambiar el fusible desconecte el aparato y retire el cable de alimentaci n Este producto debe ser conectado a tierra masa Para asegurar una ventilaci n adecuada no obstruya los orificios de refrigeraci n No coloque objetos en las ranuras de refrigeraci n de los equipos electr nicos B
22. hrough the amplifier ventilation holes Important for uk only The wires in this mains lead are coloured in accordance with the following code green and yellow earth blue neutral brown live As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the terminals in your plug proceed as follows the wire which is coloured green and yellow must be connected to the terminal in the plug which is marked with the letter E or by the earth symbol or coloured green or green and yellow The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red Italiano Avvertenze Per prevenire incendi o folgorazioni non esporre l apparecchiatura a pioggia o umidit Rispettare tutte le avvertenze indicate sulle apparecchiature stesse Per evitare scosse non aprire il cabinet Non contiene parti riparabili dall utente Per qualsiasi problema rivolgersi ai Rivenditori Autorizzati B amp W Per evitare folgorazioni non utilizzare questa spina di alimentazione polarizzata con una prolunga o altro se le lamelle non si inseriscono completamente nella presa per evitare l esposizione della lamella stessa Controllare che il voltaggio indicato sull apparecchio corrisponda a quello della rete elettrica Sostituire
23. il fusibile di rete solo con uno dello stesso tipo e dello stesso valore come indicato sull etichetta che riporta il voltaggio dell apparecchio posta vicino all ingresso del cavo di alimentazione Spegnere l apparecchio e togliere il cavo di alimentazione dalla presa elettrica prima di cambiare il fusibile Questo apparecchio richiede la messa a terra Per garantire un raffreddamento adeguato dell apparecchio non ostruite i fori di ventilazione Non inserire oggetti nei fori di aerazione Deutsch Sicherheitshinweise Zum Schutz vor Feuer oder einem elektrischen Schlag das Ger t niemals Regen oder Feuchtigkeit aussetzen Alle Warnhinweise auf dem Ger t m ssen genau beachtet werden Dadurch k nnen Personen und Sachsch den vermieden werden Um die Gefahr eines elektrischen Schlags zu reduzieren nicht das Geh use ffnen Im Innern befinden sich keine vom Bediener zu wartenden Teile Wenden Sie sich bei Servicefragen stets an einen autorisierten B amp W Fachhandler Verwenden Sie kein Verlangerungskabel Eine hochbelastbare Mehrfachsteckdose kann eingesetzt werden wenn sie und die Wandsteckdose ausreichende Strommengen f r alle an sie angeschlossenen Komponenten liefern k nnen Bevor Sie das Ger t in Betrieb nehmen pr fen Sie ob die Betriebsspannung der rtlichen Netzspannung bereinstimmt Die Betriebsspannung ist am Ger t angegeben Setzen Sie niemals Sicherungen ein deren Wert bzw Typ vom angegeben
24. irect connection to the amplifier terminals It is generally accepted that the wires between power amp and driver should be as short as possible so we do not recommend that the captive cable be lengthened in any way In the majority of cases it will be most convenient to locate the crossover units in close proximity to the power amplifiers with correspondingly short line interconnects Each cable should be connected directly to the respective outputs of each amplifier The line from pre amplifier and crossover is likely to be comparatively long and should therefore be of high quality and low capacitance It is further recommended that the balanced input of the crossover be used with two core screened cable even if the pre amp is single ended In the latter case the screen and one core should be joined at the source end FF e m T I i PS 2 Detail of twin cored screened lead connecting phono to XLR plugs pre amp to x over 11 Fine tuning Before fine tuning the installation double check the polarity and security of the connections If the hand tightened nut that holds the Nautilus to the plinth is not done up sufficiently tightly it can occasionally work loose This may create a difficult to locate rattle or buzz The accessory pack includes a rubber washer and a steel washer that shoul
25. nclosure results in a high pass behaviour so over damped that the traditional second order characteristic is replaced by two distinct first order slopes and no stored energy A 250 micron one piece aluminium cone centre dome ensures coherent motion to beyond 1 5kHz From 220Hz to 880Hz a 100mm flat fronted unit is employed to prevent the gentle cavity resonance found in conventional cone units at around 2kHz interfering with the output from the upper midrange unit A rare earth magnet assembly with hollow pole is used to minimise the obstruction to the rear radiation from the diaphragm Two domed units of anodised aluminium of similar construction 50mm and 25mm in diameter handle the 880Hz 3 5kHz and 3 5kHz 25kHz ranges respectively All drive units are completely mounted on silicone rubber O rings to decouple them from the cabinet Important your dealer must check that the serial number located at the rear of each crossover unit matches that of the loudspeaker and that the stated voltage is correct for your mains supply Crossover The division of the signal into the four required bandwidths is accomplished in the Nautilus Active Crossover via totally nonresonant circuitry Both inputs and outputs offer single and balanced operation the latter being particularly useful in noisy electrical environments although a slight subjective improvement has been observed when using balanced signal interconnections at every stag
26. rated 100W 300W continuous into 80 on unclipped programme each channel to have identical gain and phase Height 1210mm 47 6 in Width 430mm 16 9 in Depth 1105mm 43 5 in Speaker 44 5kg 98 Ib Plinth 42kg 92 Ib Total 86 5kg 190lb Midnight Blue Black Silver 13 Safety instructions PRE dore ds 10 11 12 13 14 15 16 17 14 Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth Do not block any ventilation holes Install in accordance with the manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus that produces heat If the crossover unit is to be installed in a rack with power amplifiers install the crossover below the amplifiers Do not defeat the purpose of any polarised or grounding type plug A polarised plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the grounding prong are provided for your safety If the provided plug does not fit your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Take similar precautions with the c
27. se can smear the sound but may be reduced by irregular shaped surfaces such as bookshelves and large pieces of furniture As Nautilus is designed in such a way that the units are de coupled from the enclosure and the base weighs a substantial 42kg After care The GHP cabinets normally only require dusting If you wish to use an aerosol cleaner spray onto the cleaning cloth not directly onto the cabinet If the surface of the speaker suffers any minor scratches they can be polished out with fine T Cut or finishing compound such as Finesse It by 3M When making or breaking connections ensure all power is switched off otherwise damage may result Avoid touching the drive units especially the domes as damage may result Technical features Description Drive units Frequency range Frequency response Dispersion Crossover frequency Power amplifier requirements Dimensions Net weight Standard finishes opecification Nautilus tube loading active crossover 4 way tube loaded loudspeaker system 1x e300mm 12 in aluminium cone bass 1x 6100mm 4 in aluminium polymer sandwich cone lower midrange 1x e50mm 2 in aluminium dome upper midrange 1x 25mm 1 in aluminium dome high frequency 6dB at 10Hz and 25kHz 25Hz 20kHz 1dB on reference axis Within 2dB of response on reference axis Horizontal over 60 arc Vertical over 10 arc 220Hz 880kHz 3 5kHz 4 channels per speaker
28. tents Introduction Enclosure Drive units Crossover Unpacking Positioning Installation Cable connection Fine tuning Aftercare opecification Safety instructions 10 10 11 12 12 13 14 Introduction B amp W monitors are widely considered to be the benchmark in music reproduction by professional musicians and audiophiles alike The Matrix 801 has become the industry standard monitor in recording studios around the world and it would be easy to rest on our development laurels However the team of audio scientists at B amp W s Research Laboratories at Steyning are perfectionists For them there are always areas which could be improved upon or refined Company founder John Bowers was an exemplar of the type For him the most glaring compromise in loudspeaker design lay in the cabinet The standard rectangular enclosure only partially achieves its goal of absorbing the rear radiation from the drive unit Worse it contributes resonances and reflections from the inside and diffraction and reflection from the outside The B amp W breakthrough of Matrix cabinet construction offered a significant improvement to the panel stiffness of the rectangular box but ultimately the solution John felt was to remove the cabinet completely and create a dipole source Sadly time and ill health intervened to prevent John Bowers from exploring this avenue of research further Custody of this work
29. ve serious frequency dependent transmission properties 10mm thick Glass Reinforced Plastic GRP has been used for the exterior surface which when coupled with the doubly curved shape results in an extremely stiff enclosure The inner turns of the spiral are bounded by a foam filled GRP which braces the opposite faces of the snail in a manner similar to the Matrix type enclosure perfected by B amp W The external form of the Nautilus has been achieved using a blend of hand built forming and advanced CAD technology borrowed from the automotive industry This enables B amp W to maintain mathematical accuracy of the wave guide and to produce the final mould tool to submillimetric accuracy The high gloss surface finish is the result of using a two part acrylic paint with a deep lacquer coat for lustre and durability A 50kg block of polished terrazzo type material supports the complete mollusc Drive units Each drive unit has been developed to operate as a piston within its intended frequency band with two octaves between the upper roll off and the first sign of break up modes Extensive use of aluminium in the diaphragms makes this possible All voice coils are wound on polyimide formers to eliminate eddy current losses which are particularly serious at high frequencies A 9 5kg 21lbs magnet with a 100mm 4in voice coil acts as the massive motor of the 300mm 12in bass unit This when used in the exponential line e
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