Bowers & Wilkins DM308 User's Manual
Contents
1. the Speakers Ie speakers and the centre of Tha listening ares approximately at the corners of an equilateral triangle KMeap ihe speakers ni lanni 1 5m 511 apart to maintain laft right sieran separation speaker at laast 0 5m 20 clear 6 walls Having the spe gkers too close to walls increases lavel of bass to the midrange and may giva 8 boomy quality 10 he sound WARNING Tha DM3OB producas a staile magnetic field that axjenda auteida Ihe caninel boundary such Tha DM3UB should b placed within D 5m 20in nf equipment may affected by such a field e g Cathode Ray Tubes In TVs and Personal Computers FINE TUNING fina tuning tha installation doube check the polarii and security Th connections the level of bass is unevan with frequency Ihis is usually due to strong excitation res nance modes in iha room Even small changes in the pesition of the speakers within the listening room tan have a profound effect on ihe perceived sound quality by altering 1 excitation these modes Try mounting the speakers along a different wall Even moving large pieces of fumiture abaul can have an affect general lavei of bass too high try moving the speakers further Iram the walla Conversely IF you nead more bass move Tre Speakers clear walls Space behind ihe speakers aiso improves the impress2. Flat U TIF Camelpaint Building Black 111 60 Hai Yuen Rood Kwun Ton Kowloon Hang Kong BAW Loudspeokers of America 54 Concord Street North Reading 01864 2699 Printed in England L 5 B amp W Laudipaukar Lid Moodaw Rood Werthing BH11 2RX England Tel 44 III 1903 524601 Fax 44 0 1203 524725 htipu vrww hwapeakerrcom
3. OW D LISTEN 5 0 8 A N M ANUAL D YOU LL 5 INTRODUCTION Thank you for purchasing BAW DM300 Series speakers Since foundation in 1866 the continuing philosophy ol been Tha quest tor parteci sound reproduction Inspired by the company s founder the late John Bewerk this quest has entailed anly high investment in audia technology and but also an appreciation of 10 that technology Is put 1o maximum The DM308 has a Prism System Putent pending rear designed ta mimic the intarior of an chamber This greatly helps to break up ihe regular internal cabinet volumo that would oth rwige encourage coloration irom internal standing waves Homogeneous fibre bass midrange drive unils are used fer minimum coloration and maximum delinition The DM308 also laatures a sott dome tweeter with magnetic fluid cooling to ensure gond definition Ihe limits ol audibility and maintain dynamics high sound However matter how good the speakers themselves Ihey must work wall inte the listening and 1ime spent on the Installation process will reap the reward ol many hours lisiening pleasure read through this mantal fully Tt will help you optmisa tha performance o your audio system BAW distribute 16 over 50 countries world wide and maintain network
4. abinal Spray anto the cleaning cloth diractly onto the cabinet Tha grille fabric may ba claanad with a normal clothes brush after removing Tha grille from Ehe cabinat Avoid touching the drive unit amp especiaHy the tweeter damage may result FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4 DESCRIPTION DRIVE UNITS FREQUENCY RANGE FREGUENCY RESPONSE DISPERSION SENSITIVITY HARMONIC DISTORTION NOMINAL IMPEDANMCE CROSSOVER FREQUEHMCIES RECOMMENDED AMPLITIER FOWER RECOMMENDED CABLE IMPEDANCE DIMENSIONS MET WEIGHT FINISH DM3 08 1 way th order vanted bor systam 21 165mm 6 5 inj Homagenesis fibre 1x mm dama high frequency dB at 39Hz and 22kHz ABH 20kHz 398 on relerence axi Within 2dB of responsa on rolarence axis Horizontal over 40 arc Vertical over 10 arc 9198 spl LEIV 2nd amp 3rd harmanics lt 1 50Hz Z0kHz spl 1m BL minimum 412 A50Hz Zk Hr 25V4 150W continuo inio Bi an unclipped programma 0 211 Height Yi2 amp mm 140 inj Width 27mm v in Depth 308mm 12 sin 31 Ib Black Ash vinyl Grille Black Clath L I BAW Loudspeakers Ltd reserves tho right to amond specifications without notice in line with technical develspmenn STEN AND YOU Copyright B amp W Loudspeokers Lid L B amp W Loudipoakors Ltd
5. dedicated distributors who wil be able to help should you have any probleris your dealer cannol resolve UNPACKING Fold 1ha top carton flags right back and inverni tho carton amd contents Litt iha carton clear of the conients R move the Inner packing tram the praduct 4 spike and 4 loci nuts are tapad in recesses in polystyrans end iray We suggest you retain tha packaging future usa CONNECTIONS 2 All connections should be mada with the equipment turned of Connect the positive terminal tha speaker marked and coloured ta ihe p sitiv lerminal ihe power amp mpliliar and negative black 10 negaliva 2 Falure to observa correct polarity will result II poor sound balance and image focusing Always maka sura alil Ihe terminal caps are screwed down light as otherwise they may ralila When choosing cable keep the total elecirical pmmpedanca ouf back beinw ihe maximum recommended in the specificalion In particular Tha cable should have low inductancs the very high Irequancies will ba altanuated Ask your deaiar lor advice as the optimum cable will depend on the length required POSITIONING migues Soma xp rimant ti n with Th posili n af the spagkars 35 well worlhwhiie 10 optimise the Intoracilon betwesn them and ihe listening room However as an initial guida Do not II ihe spike feet until you have found tha best position
6. ion ol parspectivs nn well recorder material I thea central image is poor try moving speakers 6050 Dopalher ot toging Tham in so They point al or just i front al the ligtenimg area 4 the sound is 160 harsh increase the amount of soit furnishing in The room For example use heavier Canversaly reduce ihe amount ol sofl lurnishing i th saund is dull and Tes for Moter echoes by clapping your hands and listening for rapid repetilians These can smear ihe sound but may be reduced by irregular shaped surfaces such as backshaelvas and large pieces furniture Ensure the speakers stand lirmiy on tha floor Whenever possibla III the apika leet supplied alter you have the positioning Thess ara designed to piec through carpeting 16 ihe floor surface initially screw Ihe lock muts luly ania the spikes Aand screw ihe spikes fully into the Threaded inserta in tha base ol the cabinet The cabinet rozks unscrew the two spikes that do touch the floor equally until the cabinet siis firmly on the floor and lock them in place by tightening the lock nuts against the cabinet If there is carpet and you wish avald scratching iha surlace protective disc batween the spike and the AFTERCARE Tha Vinyl veneers narmally only require dusting II wish to use an aerosol tam ve grijla first gently pulling away from Ihe c
Download Pdf Manuals
Related Search