Bowers & Wilkins DM600i User's Manual
Contents
1. ol im ANIS ur amplie wiih sinpi B amp W Loudspeakers Ltd Meadow Road Worthing 11 2RX England 4227 Printed in England2. bedienungsanleitung gebruiksaanwijzing manuel d utilisation manual del usuario E Hj Ei m a n ual DNIGOi e A 44444944 lt Check the contents of the carton as follows DMAOU DM6I0 2 lwdspeakers user ninien 1 decispwaker 4 spike feet with lock nux user in one cartan omy DM6380 DM G40 I 3 xfnlu feet with lock nuts accessory pack containing T allermatie port and T blinking plate ner in one cartas andy Where supplied the spike feet arr pached into one of the polystyrene end trays POSITIONING YOUR LOUDSPEAKERS JE wes onee said correct placement of chent pair of loudspeakers could froduce better sound than incorrect placement of a much more expensive product Whilst this is of an exaggeradtan it atill trar that changing the position of your loudspeahers will have a grater influence oin Ure sound an amy other variable yonr control The spacing beticeen your loudspeakers will depend on the size af your listening room and the distance of your wrating Fam the loudspeaers As general rule Huy should not be closer than 15m 500 and the space betzoeen Dem xhould not exceed tw distance af your seating for listening Placement of the too loudspeakers and the listener on the points of an equilateral triangle is not bad cule to follow The position of the loudspeakers in relation fo he talit of the F
3. NSE aile 20H HAE on reference axis REFERENCE AXIS 23 Ste Tree em of gabinet OM SZ DESCRIPTION amp ih ilir pret vex digital en ilFkradbngi 1 plates terminais and bow dl Tra sie melle Ire ON DT with Asl game FREQUENCY RANGE dob e Ak He FREQUENCY RESPONSE zt ka 8 nn anha REFERENCE AXIS Finini Freue baina rel tabiri 3 0 DESCHIBTIONM qm fourifiorder waralli parri reflex d maliitin Facility geld gla xt grille rams MS Tw 200nan Rin bass wii eipta ieam hassa icr One Bb iibi alie TAH with meml FREDUENCY RANGE ap mi 15H FREGLIENCY RESPONSE 4sHz blHr H on reference n M Wiha pasas kadha kia 158 lte Hlorizoni r cal uwer 107 ar SENSITIVITY aT 2 83V NONMHNAL IMPEDANCE i CROSSOVER FREGUENCDY 75x11 POWER HANDLING suitable l or amplslerrs wiih H dirigia Citimi bo ALi op ngiwa amid piti RAMAL VOLLINTE bes 20 eur fi DIMENSIONES Weight Naba L Sie Widi Z re Fini Depth 5 mum dp Dn WEIGHT MUTARE ELI DISPERSION Wihin 2 of m om TETEH aia ZUHs ISkHs ever 407 nc Vertical ever II arx SENSITIVITY RER am 3 BIV Tem NOMINAL IMPEDANCE iti CROSSOVER FREQUENCY 2 POWER HANDLING com
4. inus imis A E rur iru ih and gerer ramen INTERNAL VOLUME DIMENSIONE Hr Sene 1 1 Widhi hmm D Ate Depi WEIGHT or ampliare wihi ML LSW o 0 77 coh DISPEHSION Wirhin ZdB af responw an re erence axis SH BI5bHr Hurirmntal ever At er SENSITIVITY 12 937 MOMIMAL IMPEDANCE CROSSOVER FREQUENCY 1 amp H HANOLING for Tia wiih 1150W minme caius bndos car nianie ststrrch eg INTEAMAL WULUNE igi tres E UB cu Tt DIMENSIONS 742mm 20 Mie Width 236mm op Depi kii man 18 Im WEIGHT Hait pire d DISPERSION du ef rruponse op redigrenes xxl Huriata uvm ap Vrribab orir A ar BENBITIVITY NONMINAL INIPEDANCE i CROSSOVER FREGUEPC 40s Sk POWER HANDLING for sit Ap SUDAN mitius linde 412 speech and musie INTERNAL VOLUME SEA lires 1 85 cu D DIMENSEIONS Teghtr Siomen 33 Sing Width Paim 9 Ain MET WEIGHT REFERENCE AXIS Hiiisutal Him 2 Tim rem bitten oT e Aleng DISPERSION W SUH 2 15 Hy Hori emer HE arc Vierbcal oves 107 arx SENSITIVITY Sli im NOMINMAL IMPEDAPICE iil CAOSSOVEA FREQUENGY titir 1H POWER HANDLING Cir bri debo ALA om ani LI C E INTEAMNAL VO UE 56 3 Res 1 0 em fu Lu hirs DIMENSIDNS vitari Aenea CT Mie Depu 116 MET WEIGHT
5. le hrecautions with ihe feet to avoid damage Do not position re cabine Ij walking them on the feet This wall pet undue sidewerys hiressure on he monmiings asd mert loosen them Kerja the spilies moway from your feet and am cables that he hidden undor th caret On polished wooden Hoen protect the surface feum using am amtermediate layar such as the sold for spreading the load on castors We recommend that you fil the feet only after deciding on the final position of Ure speakers Before fitting them the lnck nuts fully onto the threads Screw the feet Zull into the threaded inserts on the bottom of the cabinet and tighten using a L0mm spanner Stand the cabinet in the intended position Jf the cabinet rocks betueen fu opposite feet undo one of them until the mounting 1s firm and then Hghten that lock nut up against He maen mp tha cabinet whilst holding the sprike to prevent ii turning ELECTRICAL CONNECTION AH connections should he made uith the amplifier sanitched aff Each speaker ix supplied wiih two pairs of terminals at Ihe reus of Ue cabinet The lower pair connects tw lou fyequeney units and the upper pair the higl fregiency unity midrange and high frequency units on DAEA The two pairs of terminals are connected together on delivery by fux plated high purity copper links In this situation either pair of terminals muy be used ti connect the Fouds
6. nal listening chain is a combination of variables which xhould be carefully listened t before making a final choice OMEO DESCRIPTION shelf niian bon aligbtal qmi j jih Lasw dillrachon moglded gile Tram DRIVE UNITE hie 18 Berus feni bawa midrange wih reimTarveil pelvprome bene amid Zn Rink high demqera tiee volce coil on baten erter Une Pimm ilin high frequency with metal dame high te perature wire cod and magnete Thai cooling FREGLENMCY RANGE as IHs aral FREQUENCY RESPONSE z tte 20kit on guis REFERENCE AXIS Harontal iH Ze ram bohom of OMIS ke Or DESCRIPTION Stad dhadi digital r paahi w wii WES img kamp a aail Law diflraction nus ille fram DAWE UNITS gt polprapelene dixphr on Kap m former Uie Zhmm ba h gh Tee v Pari wish re d ul Wima 10 246 high teengszatugrp sosici Col with metal damea ir mpreradiirn vice diil and magnetic Thai FREGUENCY RANGE Sit SIH aral MAS FREGUENCY RESPONSE Tiis ZnklHiz dll cm rofenemee axis REFERENCE AXIS tinum lz bin frem beosrom of cabinet Dnraesio DESCRIPTION Tun mrspsieg gold terminals DRIVE UMITS TUHAN sau himp hig rFirmperabiure voice wil mal nsaprieru ful FREQUENCY RANGE ni dd EE amd Mikir FREQUENCY RESPO
7. onger as opponi to Hur shorter wall o well worth trying A final word abent syumetry For best balance af stereo information the boundary conditions relative to each of the fusi loudspeakers should be as acoustically similar INSTALLATION The best balance of sound ix achieved when the listeners ears are zithin 55 of the reference axis in the vertical plane see specifications for the definition of reference axis This equafes fo a range in height of 05m 20i at a typical listening distance of 3m 10 At progressively larger amples the change in the relative time VW NN Ww xS ww ON delay hetueen Ue drive wiis ill gradually cause d reponse dip around the mid to high crossover frequency DM609 and DAS 0 should be used on rigid open stands er abebu to achieve tie correct lixtening hoighi Your dealer will he able to aditu you as te suitable stands DMA20 DM630 and DM 40 will normally he floor standing ond adjustable spike feet are wupplied for this purpose These feet have several adpantages They level the system on an seien floor providing secure mechanical base against which the dree utis Thuy fierce through carfwt direct to the solid floor avoiding crushing af the pile The contact area with the flomr minimises the transmission of vibration This ix especially important auspuended weoden oors which may radtate these vilrations as coloration Yeni sheule humort take some simp
8. peaker to te power amplifier Connect the positive terminal of the amplifier to a jyositiise terminal on the loudspeaker marked and colour coded red and the negative terminal of the amplifier to a negative black terminal on the loucspeaker The terminals wil accept bare wire ends or Jmm Jm dia banana plugs It is essential to observe the correct polarity when connecting a stereo fair of loudspealwrs Wrong connections to one channel will result in a loss of bass and an inability lo foens a correct seren image Reversal of Ehe connections to eue loudgeaker wili restore the situntion n home cinema installations correct polarity eimmection becenes even nare critical as soumd images must be accurately co ridinated iia greater number of ludspealurs with the visual images an screen With good qualite ancillary equifiment the retiraduciton of lesa detail can be improved by bizviring your abegben ubirati calsles rom a common pori amplifier output to each prir of terminals on the which reduces interaction between the separate vectiumy of the rasane A further refinement is bi antplification each pair af terminals fed frm a sperati nmjlifier In both cases the terminal links should be removed afler loosening the terminal caps d ah Da e X SN The connecting leads should be kept as short as possible 16 minimise ihe series impedance However we reconmend bet you de nol trim the length until
9. stening room can have noticeable effect on refroductium especially at lou frequencies Generally bass uill increase reletior to the middle and high frequencies ax the Ioudspeahers are aevel moer to ihe Placement in the corner of the room mary gior rive lo bm bass with a bian qualitv Hoserer the smallest estem the range DM600 and may benefit from bass reinforcement from ther rear wall The others khoe he in a free standing position at least 05m 29 fl from the rear wal With DMG30 aud DM tbe af bass may be adjusted iy altering the port fo comente for room effects These spenlers are 2 different length port amd a blankingff plate The longer part is fitted If voit wish fo increase the level of bass replace th ort uith the Mhorter perire Fitting the blankisigeaff plate will reduce the bass Jore The bass uil generally be mure eren if the distances ta the rear and side swells are different a ratio of 1 3 offen nex Pow Wie here been discussing Unt proximity ef loudspeahers fo the wall in the context of lower frequencies but it is worth nenlioning Hut xtereo information in front hack lane will aho improve if the rear wall is at least 0 5m 2l from the bark of the loudspeaker The choice to uhich of the four walls to luce your loudspeakers near will largely depend on your arrangement of furniture But again the oplion vf thr l
10. the loudspeaker position has been finalised Use a auge of cire heavy enough te deep the loop impedance as lou as possible preferably helow ik 261 fo avotd modification of the frequency responie Excessibe inductance in the cable can result in a Towert of extreme high frequencies what excessive capacitance ean lead to instability in some amplifiers A polarity coded cable will assist correct connection Vour dealer can advise you on He most suitable cable for your needs The importance of sound clean connections in nairitaimingra distortton free signal to the loudspeakers eme be over emphasixed Df using banana plus choose a good quality sprung or expanding type Arem firmly finger tighten the terminal caps even if using banana plugs ax they miy rattle or buzz Jr i good practice to remake conections periodicnlly to ensure they remain sou With bare wire connections if mear cut off the ol ends and sirip back the insulatian to expuse clean comductar The cabinet shela be treated es any normal piece of furniture If yos tuse an oral cleaner spray onto a cloth amd bech it oer from the front of the loudsteaker especialy the vrille clolh and drive units Df you need to clean tf radhi first remove the frame by grasping the enter edges near the gently pull from ihe cabinet The material may ten De rushed with e normal clothes hrush or similar Please avoid touching the drive units especially the h h freq
11. ueney unit ax damage could result AMPLIFIER CONTROL THE POWER AMPLIFIER The recommended limits of peower outfnut for the driving amplifier are inven im the specification However in giving these limits it should be stated that amplifier power output requirement ix an almost impossible figure Jor the loudspeaker manufacturer to specify It wil depend entirely upan the type of music reproduced size of listening room and lecel Jt is oke heiter lo have an amplifier with high power outfit as this allows the proper reproduction of transients whereas if the amplifier output ix too lou clipping can occur during high peak level tramsients Apart from causing audible distortion clipping results in a relative increase in the poer fed to the high frequency unit with the possibility of thermal damagr THE CONTROL UNIT The control althangh i deals with small voltages rather than large currents its in the cese of the power amplifier is an equally critical part of vonr listening chain Choose udth care n the Rneudedge that hr test for audio components is critical lxhening At BP Ws research department there are many different combinations of control units amplifiers and source eommpaoents such ax analogue flayers vic Tt is our experi nce Bal each uml Do say nothing of the inlerconnecting cable i5 a variable and the fi
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