Owner`s Manual - B&W Group North America Service & Support
Contents
1. gn 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 LILILILIL Quality Control Loudspeaker B Bass driver Lower midrange driver Upper midrange driver High frequency driver Crossover B Contents Introduction Enclosure Drive units Crossover Unpacking Positioning Installation Cable connection Fine tuning Aftercare Specification Safety instructions 10 10 11 12 12 13 14 Introduction Bowers amp Wilkins 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 B8W 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 the2. Standard finishes Specification Nautilus tube loading active crossover 4 way tube loaded loudspeaker system 1x 8300mm 12 in aluminium cone bass 1x 8100mm 4 in aluminium polymer sandwich cone lower midrange 1x 850mm 2 in aluminium dome upper midrange 1x 825mm 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 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 lb Plinth 42kg 92 lb Total 86 5kg 190lb Midnight Blue Black Silver 14 Safety instructions NOOR WD 10 11 12 13 14 15 16 17 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
3. 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 Gm and 25mm Tin units all mounted in tapered lines within a diffraction limiting enclosure The enclosure evolved from the original cylinder into the sleek rolling vent design you have purchased The massive 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 dam
4. prise terre Pour garantir un bon refroidissement n obstruer pas les prises d air N ins rer pas d objets dans les prises air Nederlands Waarschuwingen Om brand en schokgevaar te voorkomen mag u dit apparaat niet blootstellen aan regen of vocht Volg alle waarschuwingen die op het apparaat staan altijd op Om een elektrische schok te voorkomen open de behuizing niet Onderdelen kunnen niet door gebruiker worden gerepareerd Reparatie en onderhoud uitsluitend door een gekwalificeerde Bowers amp Wilkins dealer Voorkom een elektrische schok en gebruik de netspanningskabel uitsluitend met kontaktdozen waar de stekerpennen volledig kunnen worden ingestoken Overtuig u ervan of de netspanning van het apparaat overeenkomt met die van het lichtnet Vervang de netzekering uitsluitend door een van hetzelfde type en waarde zoals wordt aangegeven door het type indicatieplaatje naast de lichtspanningsaansluiting Het apparaat mag uitsluitend worden aangesloten op een wandkontaktdoos met randaarde Voor een optimale koeling moeten de ventilatieopeningen altijd volledig vrij blijven Voorkom dat voorwerpen en vloeistof via de ventilatie openingen in het apparaat kunnen vallen Espanol Advertencias Para evitar incendios o accidentes electricos no exponga este equipo a la lluvia a la humedad Tenga en cuenta todas las advertencias que figuran en el equipo para evitar un shock electrico no abra la caj
5. 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 Remove 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 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 A
6. 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 These 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 GRP 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 H Technical features Description Drive units Frequency range Frequency response Dispersion Crossover frequency Power amplifier requirements Dimensions Net weight
7. susto odolorem alit praesse minci tate vent aliquis eumsan utat Ut lan ent ing er adit adipit lut er sequissisl doluptat amcorerit commodi onsequisl ipit lore dolore ero doluptat deliquat luptat num vel duis nos niam dio exero exercilla commy num volore feum zzrit nostie te feum dolesequat Giam doluptatio digna at Sum velendi onsenim alit alit lam quisi bla core faci esed dolum quisi Oloreetum deliquate dunt luptat El ullummy nulla commolore duissenim nulla facipisl ullamet amet veros at alit qui te feuis del dolummy nullaorem del dipit amcon veliqui pisisi Hent er sisi Rud ent at alit irit wis alit nonsequis augue con hent augiame tuerci ea feu feugiametum iurero odit nibh esto enim dui tate dolore conullaore tion hendre do dolorpercil ulla conse vel eugue veros nos acip eros esequiscin eu feugue Polish Elesequat Gait ver sequis at lor suscillam alit suscinc Ud enis nibh et se dionse dolent numsand rerostrud ercilisim eugait ut alisi Iquatissent lor sectet si Rem dolestisim venit autatem ver sequatum delisis alit lortio odipsum illa faccumsan volore feum iure cor suscinis ad magniam in ulput ea ad dit landrerit alis nos dolum in enit nullandre tat wis erosto conulluptat vullum in utem nostrud do commodignim vel utat lobore magna faciliq uismodit augait at velenisi Secte dunt ero doluptating eum ver accum alit at praessi Inim iuscilisit ate doluptatue dolore do erat velenis modiam nibh etuer susto odolorem alit pr
8. 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 Bowers amp Wilkins 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 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 cylinder 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
9. GE VIOLET VIOLETT VIOLET LOREM LOREM LOREM IPSUM IPSUM IPSUM LOREM LOREM LOREM IPSUM IPSUM IPSUM ROJO NEGRO LOREM IPSUM LOREM IPSUM MARRON AZUL LOREM IPSUM LOREM IPSUM ROSSO NERO LOREM IPSUM MARRONE AZZURRO LOREM IPSUM AMARILLO GIALLO VERDE LOREM IPSUM LOREM IPSUM VERDE LOREM IPSUM NARANJA ARENCIO VIOLETA LOREM IPSUM LOREM IPSUM VIOLETTO LOREM IPSUM 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 direct 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
10. a Dentro del equipo no existen partes manipulables por el usuario Todas las cuestiones referentes a reparaciones dirijalas a un vendedor autorizado de Bowers amp Wilkins Para evitar un shock electrico no use este enchufe de alimentacion polarizado con un receptaculo de un cable de extension ni con otra salida a menos que las clavijas queden totalmente insertadas y se evite la exposicion de las mismas Compruebe que el voltaje que se indica en el panel es el que corresponde al suministro de potencia El fusible esta dentro del modulo debe ser reemplazado por uno del mismo tipo y valor nominal que el suministrado y debe ser colocadopor un servicio t cnico autorizado de Bowers amp Wilkins El equipo no debe tener toma a tierra Para asegurarse que esta adecuadametne refrigerado y no obstruya los orificios de ventilaci n Russian Elesequat Gait ver sequis at lor suscillam alit suscinc Ud enis nibh et se dionse dolent numsand rerostrud ercilisim eugait ut alisi Iquatissent lor sectet si Rem dolestisim venit autatem ver sequatum delisis alit lortio odipsum illa faccumsan volore feum ure cor suscinis ad magniam in ulput ea ad dit landrerit alis nos dolum in enit nullandre tat wis erosto conulluptat vullum in utem nostrud do commodignim vel utat lobore magna faciliq uismodit augait at velenisi Secte dunt ero doluptating eum ver accum alit at praessi Inim iuscilisit ate doluptatue dolore do erat velenis modia
11. aesse minci tate vent aliquis eumsan utat Ut lan ent ing er adit adipit lut er sequissisl doluptat amcorerit commodi onsequisl ipit lore dolore ero doluptat deliquat luptat num vel duis nos 07 dio exero exercilla commy num volore feum zzrit nostie te feum dolesequat Giam doluptatio digna at Sum velendi onsenim alit alit lam quisi bla core faci esed dolum quisi Oloreetum deliquate dunt luptat El ullummy nulla commolore duissenim nulla facipisl ullamet amet veros at alit qui te feuis del dolummy nullaorem del dipit amcon veliqui pisisi Hent er sisi Rud ent at alit irit wis alit nonsequis augue con hent augiame tuerci ea feu feugiametum iurero odit nibh esto enim dui tate dolore conullaore tion hendre do dolorpercil ulla conse vel eugue veros nos acip eros esequiscin eu feugue Czech Elesequat Gait ver sequis at lor suscillam alit suscinc Ud enis nibh et se dionse dolent numsand rerostrud ercilisim eugait ut alisi Iquatissent lor sectet si Rem dolestisim venit autatem ver sequatum delisis alit lortio odipsum illa faccumsan volore feum iure cor suscinis ad magniam in ulput ea ad dit landrerit alis nos dolum in enit nullandre tat wis erosto conulluptat vullum in utem nostrud do commodignim vel utat lobore magna faciliq uismodit augait at velenisi Secte dunt ero doluptating eum ver accum alit at praessi Inim iuscilisit ate doluptatue dolore do erat velenis modiam nibh etuer susto odolorem alit praesse minci tate vent ali
12. an ent ing er adit adipit lut er sequissisl doluptat amcorerit commodi onsequisl ipit lore dolore ero doluptat deliquat luptat num vel duis nos niam dio exero exercilla commy num volore feum zzrit nostie te feum dolesequat Giam doluptatio digna at Sum velendi onsenim alit alit lam quisi bla core faci esed dolum quisi Oloreetum deliquate dunt luptat El ullummy nulla commolore duissenim nulla facipisl ullamet amet veros at alit qui te feuis del dolummy nullaorem del dipit amcon veliqui pisisi Hent er sisi Rud ent at alit irit wis alit nonsequis augue con hent augiame tuerci ea feu feugiametum iurero odit nibh esto enim dui tate dolore conullaore tion hendre do dolorpercil ulla conse vel eugue veros nos acip eros esequiscin eu feugue Hungarian Elesequat Gait ver sequis at lor suscillam alit suscinc Ud enis nibh et se dionse dolent numsand rerostrud ercilisim eugait ut alisi Iquatissent lor sectet si Rem dolestisim venit autatem ver sequatum delisis alit lortio odipsum illa faccumsan volore feum iure cor suscinis ad magniam in ulput ea ad dit landrerit alis nos dolum in enit nullandre tat wis erosto conulluptat vullum in utem nostrud do commodignim vel utat lobore magna faciliq uismodit augait at velenisi Secte dunt ero doluptating eum ver accum alit at praessi Inim iuscilisit ate doluptatue dolore do erat velenis modiam nibh etuer susto odolorem alit praesse minci tate vent aliquis eumsan utat Ut lan ent ing er adit a
13. 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 through 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 evitare incendi o folgorazioni non esporre l apparecchiatura a pioggia o umiditu rispettare
14. 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 cable 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 ha
15. case the screen and one core should be joined at the source end Detail of twin cored screened lead connecting phono to XLR plugs pre amp to x over 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 should 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 frequency 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 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
16. dass die Pole des Netzsteckers exakt in die Buchsen der jeweiligen Steckdose passen Stellen sie sicher dass die angegebene Betriebsspannung der Netzspannung entspricht F r den Austausch der Netzsicherung d rfen nur Sicherungen desselben Typs verwendet werden Die Nenndaten sind auf dem Typenschild neben der Eingangsbuchse angegeben Schalten sie das Ger t aus und entfernen sie das Netzkabel vom Ger t bevor sie die Sicherung wechseln Das Ger t darf nur mit einer Ordnungsgem ssen Schutzkontakt Steckdose betrieben werden Um eine ausreichende K hlung zu gew hrleisten sollten die L ftungsl cher niemals verdeckt und auch keine Gegenst nde hineingesteckt werden Portugues Avisos Para evitar o risco de choque el ctrico n o exponha este equipamento chuva ou humidade Respeite todos os avisos presentes no pr prio equipamento para evitar choques el ctricos n o abra a tampa do equipamento N o existem partes substituiveis pelo utilizador no interior devendo todas as quest es relativas a assist ncia ser apresentadas a um revendedor autorizado Bowers amp Wilkins Para evitar o risco de choque el ctrico n o utilize uma extens o para o cabo de alimentac o a n o ser que os pinos da ficha fiquem completamente cobertos Assegure se que a tens o de alimentac o especificada para equipamento 6 igual 3 da sua instalac o 0 fusivel de alimentac o est colocado junto da tomada de entrada de corrente
17. dipit lut er sequissisl doluptat amcorerit commodi onsequisl ipit lore dolore ero doluptat deliquat luptat num vel duis nos niam dio exero exercilla commy num volore feum zzrit nostie te feum dolesequat Giam doluptatio digna at Sum velendi onsenim alit alit lam quisi bla core faci esed dolum quisi Oloreetum deliquate dunt luptat El ullummy nulla commolore duissenim nulla facipis ullamet amet veros at alit qui te feuis del dolummy nullaorem del dipit amcon veliqui pisisi Hent er sisi Rud ent at alit irit wis alit nonsequis augue con hent augiame tuerci ea feu feugiametum iurero odit nibh esto enim dui tate dolore conullaore tion hendre do dolorpercil ulla conse vel eugue veros nos acip eros esequiscin eu feugue Japanese Elesequat Gait ver sequis at lor suscillam alit suscinc Ud enis nibh et se dionse dolent numsand rerostrud ercilisim eugait ut alisi Iquatissent lor sectet si Rem dolestisim venit autatem ver sequatum delisis alit lortio odipsum illa faccumsan volore feum iure cor suscinis ad magniam in ulput ea ad dit landrerit alis nos dolum in enit nullandre tat wis erosto conulluptat vullum in utem nostrud do commodignim vel utat lobore magna faciliq uismodit augait at velenisi Secte dunt ero doluptating eum ver accum alit at praessi Inim iuscilisit ate doluptatue dolore do erat velenis modiam nibh etuer susto odolorem alit praesse minci tate vent aliquis eumsan utat Ut lan ent ing er adit adipit lut er sequiss
18. el should be capable of delivering at least 30V 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 From Pre Amp XLR amp Phono inputs M XLR to be used for balanced inputs amp Phono for standard single ended inputs USE ONE TYPE ONLY gt Mains A C in High Frequency Unit RED ROT ROUGE BLACK SCHWARZ NOIR LOREM LOREM LOREM IPSUM IPSUM IPSUM LOREM LOREM LOREM IPSUM IPSUM IPSUM Upper Mid Range Unit BROWN BRAUN MARRON BLUE BLAU BLEU LOREM LOREM LOREM IPSUM IPSUM IPSUM LOREM LOREM LOREM IPSUM IPSUM IPSUM Lower Mid Range Unit YELLOW GELB JAUNE GREEN GRUN VERT LOREM LOREM LOREM IPSUM IPSUM IPSUM LOREM LOREM LOREM IPSUM IPSUM IPSUM Low Frequency Unit ORANGE ORANGE ORAN
19. em caso de defeito o substituto deve ser do mesmo tipo e calibre do inicialmente fornecido e a substituic o levada a cabo por um revendedor autorizado Bowers amp Wilkins Este equipamento deve ser ligado com contacto a terra Depois de ligado n o desloque o equipamento pois podem soltar se os cabos de ligac o e causar danos Francais A lire imp rativement Pour viter tout risque d incendie ou d lectrocution ne pas exposer cet appareil la pluie ou l humidit Respectez les conditions normales d utilisation del appareil pour viter toute lectrocution ne pasouvrir le capot Il n existe aucune pi ce susceptibled tre chang e par l utilisateur a l interieur de l appareil En cas de probl amp me adressez vous exclusivement amp un revendeur agree Bowers amp Wilkins Pour viter tout risque d lectrocution n utilisez pas cet appareil avec un cable de prolongation d alimentation secteur ou une autre prise que celle fournie moins que ses broches soient bien ins r es fond dans la prise murale Assurez vous que la tension secteur indiqu e sur le panneau correspond bien celle de votre alimentation Ne remplacer le fusible qu avec un fusible de m me type comme indiqu sur l etiquette d indication de tension situ e pr s de la prise d entr e secteur Eteigner l appareil et retirer la prise avant de changer le fusible Cet appareil doit tre mis a la masse
20. 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 enclosure 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 88012 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 25kH
21. isl doluptat amcorerit commodi onsequisl ipit lore dolore ero doluptat deliquat luptat num vel duis nos niam dio exero exercilla commy num volore feum zzrit nostie te feum dolesequat Giam doluptatio digna at Sum velendi onsenim alit alit lam quisi bla core faci esed dolum quisi Oloreetum deliquate dunt luptat El ullummy nulla commolore duissenim nulla facipisl ullamet amet veros at alit qui te feuis del dolummy nullaorem del dipit amcon veliqui pisisi Hent er sisi Rud ent at alit irit wis alit nonsequis augue con hent augiame tuerci ea feu feugiametum iurero odit nibh esto enim dui tate dolore conullaore tion hendre do dolorpercil ulla conse vel eugue veros nos acip eros esequiscin eu feugue Bowers amp Wilkins www bowers wilkins com Matrix are registered trademarks of B amp W Group Ltd 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 PXBR 2701
22. m nibh etuer susto odolorem alit praesse minci tate vent aliquis eumsan utat Ut lan ent ing er adit adipit lut er sequissisl doluptat amcorerit commodi onsequisl ipit lore dolore ero doluptat deliquat luptat num vel duis nos niam dio exero exercilla commy num volore feum zzrit nostie te feum dolesequat Giam doluptatio digna at Sum velendi onsenim alit alit lam quisi bla core faci esed dolum quisi Oloreetum deliquate dunt luptat El ullummy nulla commolore duissenim nulla facipisl ullamet amet veros at alit qui te feuis del dolummy nullaorem del dipit amcon veliqui pisisi Hent er sisi Rud ent at alit irit wis alit nonsequis augue con hent augiame tuerci ea feu feugiametum iurero odit nibh esto enim dui tate dolore conullaore tion hendre do dolorpercil ulla conse vel eugue veros nos acip eros esequiscin eu feugue 15 16 Greek Elesequat Gait ver sequis at lor suscillam alit suscinc Ud enis nibh et se dionse dolent numsand rerostrud ercilisim eugait ut alisi Iquatissent lor sectet si Rem dolestisim venit autatem ver sequatum delisis alit lortio odipsum illa faccumsan volore feum iure cor suscinis ad magniam in ulput ea ad dit landrerit alis nos dolum in enit nullandre tat wis erosto conulluptat vullum in utem nostrud do commodignim vel utat lobore magna faciliq uismodit augait at velenisi Secte dunt ero doluptating eum ver accum alit at praessi Inim iuscilisit ate doluptatue dolore do erat velenis modiam nibh etuer
23. nd 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 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
24. netically 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 A ve 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 dispersion characteristic is the substantially increased listening area in which a pleasant and realistic stereo image may be enjoyed 1 Meter 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 chann
25. ping 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 have 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 Bowers amp Wilkins 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 Bowers amp Wilkins to maintain mathematical accuracy of the wave guide and to produce the final mould tool to submillimetric accuracy The high gloss surface
26. quis eumsan utat Ut lan ent ing er adit adipit lut er sequissisl doluptat amcorerit commodi onsequisl ipit lore dolore ero doluptat deliquat luptat num vel duis nos niam dio exero exercilla commy num volore feum zzrit nostie te feum dolesequat Giam doluptatio digna at Sum velendi onsenim alit alit lam quisi bla core faci esed dolum quisi Oloreetum deliquate dunt luptat El ullummy nulla commolore duissenim nulla facipisl ullamet amet veros at alit qui te feuis del dolummy nullaorem del dipit amcon veliqui pisisi Hent er sisi Rud ent at alit irit wis alit nonsequis augue con hent augiame tuerci ea feu feugiametum iurero odit nibh esto enim dui tate dolore conullaore tion hendre do dolorpercil ulla conse vel eugue veros nos acip eros esequiscin eu feugue Chinese Elesequat Gait ver sequis at lor suscillam alit suscinc Ud enis nibh et se dionse dolent numsand rerostrud ercilisim eugait ut alisi Iquatissent lor sectet si Rem dolestisim venit autatem ver sequatum delisis alit lortio odipsum illa faccumsan volore feum iure cor suscinis ad magniam in ulput ea ad dit landrerit alis nos dolum in enit nullandre tat wis erosto conulluptat vullum in utem nostrud do commodignim vel utat lobore magna faciliq uismodit augait at velenisi Secte dunt ero doluptating eum ver accum alit at praessi Inim iuscilisit ate doluptatue dolore do erat velenis modiam nibh etuer susto odolorem alit praesse minci tate vent aliquis eumsan utat Ut l
27. s 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 serviceable 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 Bowers amp Wilkins dealer To prevent electric shock do not use this polarised power plug with
28. ttention 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 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 mag
29. tutte le avvertenze sulle apparecchiature stesse per evitare scosse non aprire il cabinet non contiene parti ad uso dell utente perqualsiasi problema rivolgersi al rivenditore autorizzato Bowers amp Wilkins per evitare folgorazioni non utilizzare questa spina di corrente polarizzata con una prolunga o altro a meno che le lamelle non siano accuratamente inserite per evitare l esposizione della lamella stessa controllare che il voltaggio dell apparecchiatura sia quello della rete sostituite il fusibile di rete solo con lo stesso tipo e la stessa potenza come indicato sull etichetta di voltaggio posta vicino all ingresso del cavo di alimentazione togliete l alimentazione prima di cambiare il fusibile questa apparecchiatura richiede la messa a terra per garantire un raffreddamento adeguato dell apparecchiatura non ostruite i fori di ventilazione non infilate oggetti attraverso i fori di ventilazione Deutsch Achtung Um die Gefahr eines Brandes oder elektrischen Schlages auszuschliessen darf das Ger t weder N sse noch Feuchtigkeit ausgesetzt werden Beachten sie alle Warnhinweise auf dem Ger t ffnen sie niemals das Geh use im Innern befinden sich keine vom Bediener zu wartenden Teile Der Service ist ausschliesslich von einem autorisierten Bowers amp Wilkins Fachh ndler durchzuf hren Um einem elektrischen Schlag vorzubeugen ist beim anschliessen des Ger tes ans Netz unbedingt sicherzustellen
30. z 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 stage 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 a
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