User Manual: Active: SCMSOASL· SCM IOOASL SCM ISOASL .
User Manual: Active: SCMSOASL· SCM IOOASL SCM ISOASLPassive: SCMSOSL SCM I OOSL SCM ISOSLMULTI C H ANNE LACOUSTIC ENGINEER !
Safety Warnil gsI.RC.i1din trut:tiuU.-il lllh te .J( ['(.UIlJOp r.1dlllit Uu li"'fI, hUHj ·,111 (0,., the .pplo""c is op rated1.Rt"taln thl?'se if s-trucrlon!J-chfetainr-d1.rSll ly ar,,1 uphuuld lut.I(lIIg UllttnJ(ioll!.r luture r:-.rf"lrl""(eU"il J warnings - .11 y IllInghII'"j'lstructl.1n shou"l t e ;uJh.-r tJIII opcl.trln04 . Follow Ilutru iOIll ' 01." Iinllu LI'rJfoilW ter .lr.rIopplitlurItlCtir.I-'mph: ne:,.· a b . thtub, washt)"I nl or np r t1 \winUlIIHh6.Ipour etVttntil2.tiou - thr appIL.1nc(' ,hoIltlU(''II u lrd,.) [h1. IIpOliti on does nut inu--,1cl'!" with III P' opt.: r "Il·ntllu i')1l . orapph nee shoutd not be! . ilU.U. d un . heJ, sofa, I ug,inOfbuil t Intu an In)lI-,tiuch.n1\.flow of air thfOllp,h IhoJ.b",.,kcA\1. -. t - th l!! ;april n e ihould hf.ace th lIItId flot th'(.lLi" t, lh;.r nl ,. Ifllpt.·U(JIv(lntll tlnl, opL-mnx trllph ·. tin . JIf.llm 'I block t" velicilAtlllll up run "50. 'SlIuil.l' Iy. tnt- .appfi li)Cth tn or10(,,,1.11II't':).-situ:\(":d .t'iI'Yht'. tfl(lIllnlH(.Jeh .)'\radiiltor !ltolles or uUu!r applr.Jncl s that p.oducr hoC.,)[8.Po. r 5(lurcor thethe apph.Jlu.r. ,twuld b"!I'typ tJ !liCribt;'d4,)'In the oper .u Hl.ll mSl, IJctl .HU.h rl1a. k d 011 thellppli nee.9.Powerenld protare not li k(!ly tothem, paylnrec puc!(tiOfI b wpo N ' \UP., llIk cIalt lIrio,p.lrli, ul.randth 10. C It! ning - the ;applipOint11(.'ihotJ ld bC\ltc.bfu\,t,·d .on or pinchl.J by !tenl' placed uponpl,jg ,cOld.) iJ.ltfJwht!' Ihcy . illhh.)ulh,It-III'"that til ytH· gai'l\' 1'nvefHn r."ph.IIIC·,'lIly.n,COf "I. Id J It)' til·manu( ctUf r.ll , Un tto::mJed p nu.f-III12 Obj ·ct .md IIqllld 'noy -du not I II Into eh13. Danl.lgt.! rl-quir1l;:U"rvic pl:.t "'Ii'powICIdtilt.1ppli "Icehould hcCol.Ipplidll' .'irVI\,;- tit ph nt.lo1.01111 hr- r yt(. cl If ()11f! III wll n.il. obj cu holt c i tIl 11 nr IIqwd h.u l.Jn spill d into tilPI I,HIiv. the ppli.lnce doe . nul dr-pear to ufHtrol'e nt1rn1.lHy (H- t!)tllllllt\ "-Ill r I( dc.han e np r(Of manu:.v. the appli flee has b . " dropped or Ihc.binet d. rnaged14 . Suvicing - tJu uSer hnurd not att:( n'lpt co !f. rvlu du: .,ppliilnce bt·Y'3n·Jthose "'t.!'a.5urco:s d4:scrlbed irl tht: operOltmg instrucliuns.AtI other "jervlcingshould hco r f. rrcd tu qualified h.·rvic . pcnonnel.I S. Grounding or pololrisation prec:1utions \hou l I hor POlMi53tion mAdns for t he ppli .nc(.lken §o tha[ grounding.re nut d,,' ·al d.
SCM50/100/150IIlOll'. ( I i,f ', . ,1111h . . . d uh.:n . nIn \eI H lnt-Alyf"Uof lb ·. tIdll'Itn( . 1.I , Unp"b incLli ligThe SCMSOAlways empla rge, open,First lay.thIIt, ,.1If.I .ttll.l1 · IATC was f,?unded in London in 1974 by Australian emigre Bill Woodman, who still.\ ,heads the company today. An enthusiastic pianist and engineer he was naturallydrawn to loudspeaker design and after a period working at Goodmans, where manytl,doIU,h i-t I lttflt'e,I. ,n.", tf.ut.JfI"\I,duot . k o f thl\u,llsci1H I0II Ion the fieLift the0of the names that went on to found British loudspeaker companies began theirRemovecareers, he struck out on his own .The premise on which ATe began is a simple one,The monand one that in many respects is still true today: hi-fi lo udspeakers tend to bethe pack,Idetailed and accurate but of limited dynamic range. while professional monitorspeakers tend to express the opposite character. ATC products were designed fromthe outset to offer the best of both. It's an easy concept to describe. but surprisinglyfI dt,U . 'holding tIdifficult to engineer.2 . MonTh e subjectiThe difficulty inherent in designing such loudspeakers is one of scale. Hi -fi levels ofaccuracy and detail call for lightweight moving parts and delicate engineering.Professional monitor levels of performance however demand far more robustcomponents engineered to survive the rigours of high level use (or extendedperiods. The only way to combine the two is through precision engineering of a classand scale more often associated with aerospace or motorspon. But the res ults areworth the effort and the cost. ATC loudspeakers. with their unique in-housedesigned dr ivers . combine the best of hi-fi and professional to devastating effect.infiuenced b)and itS positi!rooms whichcurtains andfrequencies ;:low frequen,minimise lowfrom comer.stands arounATC has become synonymous with active systems, Choosing to offer activeloudspeakers (where the passive crOssover network is replaced by active filters andmultiple power amplifiers) is simply a result of the uncompromising attitude toloudspeaker design .While passive systems still have the ir place. and ATe engineeringskills can still bring rema rka ble results from them . "active" is a fundamentally betterContentssolution to the problems posed by accurate . high level music reproductio n.The ATCinstinct is always for the better solution. Not cheaper. not quicker. but better.IntroductionPoIgdlPalleJP g"4P.Kr 5SCM5011001150ASLP"H" 6P. r 7P.I):r 8design andengineering. Active speakers deman d multiple powerConn ctlo"Section 4Signal Db Ie OptionsSection SOpcr.ttlonSection 6listCOlllgmeans that ATC engineering is available from the recording desk or CD playerSection 7COlre and M"'lIntC'n;UlceW3rl':lnty Jnd ConlolCtoutput to the ears.Spcclfic'Jtion5From modest beginnings ATC has grown to become one of the very fewlistenmgSection 6Care ilnd MaintenanceSection 7W rr.tnt)' .lnd onitor PIJ((!memSe uon 5'yexperiencedUnplcking Clnd HandlingSCM5011 OOll50SLUnplcklng .Jnd H;mdlmgMonitor Pllccmt'ntSec tlon 2AmpllflcJtionSection lS cllon -4Connectionexperimentcomprom iseasymetric driSecuon ISection IParagraph S.inappropriateIt was the development of active loudspeakers that first brought ATC intoSectIon 1Secuon JScctlon 8back. If the b,the back waamplifiers so ATC from the mid 1980s became not just a loudspeaker manufacturingdriver andcompany but an electronics manufacturer too.The further step from electronics forfonn of cabiractive speakers to a range of stand alone amplifier products was natural and nOWmust be pro.manufacturers successful across both domestic and professional audio. By selectingATC you join a group of music lo ve rs. professional audio engineers. studios andmusicians across theWorld that understand and value the engineering that goes intoan ATC product - and the sound that comes out.tw3 , ConiTwo cable ccfor the audi.statutory saf,use your mOlconnection nThe signal c.XLR term in.your monito2
Inst al lati o nSCMSO/I 00/1 SOASLI. Unpacking and HandlingThe SCM 50, 100 and 150 are large, heavy items and should be handled with care.Always employ a second person to assist in moving it. Unpacking them requires alarge. open space, preferably near their final pos it ion.First lay the carton down and open the flaps on itS side.Whiletn,who stillas naturallyvhere manybegan theirsimple one,tend to beholding the flaps apart turn the carton over so the open side isDiagram I . inpul connection pillSon the floor.Lift the ou ter carton of( the inner packing.Remove the end pad from the bottom of the monito r.The monitor can now be stood upright and the remainder' ofPin 2. Signa l (hot)the packaging removed. Pin I, ScreenPin ] , Signal (return)lal monitorsigned fromsurprisingly2 . Monitor Placement@The subjec tive perfonnance of any monitor loudspeaker will bei-fi levels ofinnucnced by (he acoustic character of the room in which it is used. ngineering .and its position within the room . Most often moniwrs are installed inore robustrooms which are com fortab le(0sit and talk in. A mixture of ca rpets ,r extendedcurrains and soft furnishings will help ensure that midd le and highilg of a classfrequencies are reasonably well controlled. There may however be. results arelow frequency problems; either toO much or tOO lin/e bass. ToIe in-houseminimi se low frequen cy problems the monitors should be kept away'gef(e c filt rs andaccicude toengineering,tally better,n.TheATCe[cer.ATC into12·d@ ac1II] Pin Male XLR] Pin Female X LRCo," ' " ".d C,""Connectorfrom corners or walls . Starr with them positioned on appropriatesrands around I metre from the side walls and 2 metres from the)ffer activegr.ITo Monitor InputTo Source OUtPUtback. If the balance is bass-light, the monitors can be moved towardsth e back walls. Use the Bass Boost control (SCM Pro only. SeeParagraph 5.5) for fine tuning rather than to compensate forinappropriate positioning. All rooms vary and it is a good idea toexperiment with both the listening an d speaker position until a goodcomprom iseisrea ched.Forprofessionalinstallationstherequirements are often very specific. Please consult with anexperienced professional acoustician if necessary. Monitors with anpie powera,ym etric driver array should be positioned such that the midrangenufacturingdnver and tweeter are in board. If the monitors are co be placed in any:tronics forform of cabine adequate side and tOP clearance for cooling airflowal and nowmust be provided .D i gram ubi need c bl@Fa] Pin Ma le XLRTo Monitor InputPhono (RCA)Co," '""o,dc,""To Source OUtputCD playerJ . Connectionvery fewIy selecting.tudios andIt goes intoTwo cable connections are required for each monitor: one for mains power and onefor the audio signal. The mains cable is speCifically supplied to co mply with loca lStatutory safety approvals and alterna tives should not be substituted. If you intend touse your monitors in an alternative territo ry please contanATC for advice. The mainsconnection must always be earthed.The signal cab le and plug (not necessarily supplied) should be of a good qua lity an dXLR terminated . Poo r cable and plug quality wi ll compromise the performance ofyour monitors. The Signal input pin configuration is illustrated in Diagram I .3
SCM50/100/150ASLIIflat bl,ad4 . S i gnal Cable Option s H.re wd rl"'Ll((.Iac eS [he control. Add s!'I'} D r C.w r mth and ene r gy tothe low e r f(equenli s in music , at (he expense of accurate transiemBalanced ( ab le (ollfigUI allon is (he pr \:O"(e(re dreprod uct ion , Note.: Adj us ting the bass boost without the ab ility to recal ibrateoption . ho wever unbalance d cOllnection is pO'i sible.may leave a pair of nlon ito rs unmatched .Diagrams 2 and 3 illustrate [heconneCtio ns requ ired for each o ptto n. Bal anced5.6 Level Trim (SC M " Pro " only): Pro vides access to an internal control that enablesCu t-off F(-6d8 freadjustment o f input sensitivity. Use a s mall flat blade screwdriver to access theMalch dcontrol. As supp lied, m o nitors are calibrated to an input senSitivity o f I V.D hip",rsio(XLR to XLR) co one tlon offe r s lower noise andbetter immur,lly to'h um " plCk-"p. U nbalancedNotc:Ad justing th e s e n i ti vi ty w itho ut the ability to recalibrate will leave a pair(XU\ to Phono or Two Pole Jack) ( n eClionof monito rs unmatched.carTIe s .-isk of I""n cali s d by mLiriple ! ,gnal Jrlhs.Hurnpi Dble.rnsr e::. ulu ngunbalancedfrorr.conneClion may be reduced b,. ",ak,ng ON E of thefo llowingmodificationstosignalLh Ecableconnectio ns: If the driving pre.mplliler (or desk) is" double(I.e . has noinsula[ed"Am pll lUCsignal ca blemainsearth),Max CunD ue to th e rld ture of the e lect ro nICs in ATC active lo ud spe a e rs it is quite normalCrossov fol'sou nd to be heud from the speaker when the power is applied orInput Cod sconn ccted T he nOlsc he a r d will no r dam ge rhe p eJker Zlnd is qUite normal.Inpul Sl'rA ltho"gh AT C "scs the higho"-gnde components. a differen l nOISe may be heardS h .""il0from cach speJ.ke r due: to l l&h l t o l;u ancc: vari ations m t he amplifier components.ln11IllplllArnplifit",disconnect thE sIgnal cab le scree" I( ti le RCA Ph oneplug end. Alternatively. disc::lnnet t the signal cableLt:\eI Tnmscr e :n at (he X LR end. nus seto rlcl option will Ol.akc:the so ur ce ( refel Em .e(SCM' P, 0" on ly)sIgnal eO:ir thoOv r103d8.11BooC.bln IOverall VS . OperationPoW'r D la gl .tIll4 illu)CIpanel. Each fEalU' el:SISd ie .iIJd (.tOill K u ·o nl iltRcIdescCibed bel o w .Stot nd5l85. I M ains Inlet: T he , p p h dIll.""Cab ine-t IFuwe r Ie.(appro priat e to the lo cal territory) should " econnected he re. Ens ur e tit at rhe1.1I n S . oltage, tgt.OM,jut 5pM:,r'ailispecified on the panel corre sponds w ith (he. . ,-c r'Q&f"'"loca l supply.5.2 Powe r Switch: Switches on the mo1(01'.Whenswitched on the indicar.or on the panel willilluminate.5.3 Fuseholder: Should a moniwl- fail to switch onwhen the power switch is opera ted (he fuse7 . Cashould be inspected. Lift out the fuseholdercover using a smallflat-blade screwdriver,High tedremove (he fuse and inspect it fo r damage . Ifand withrequired. a "ep lacement fus e sh ould be fitted Itshould be stressed however that fusesmo [often fail only because of a eriou s e lecLricaluse. N o n6. ListeningHeavy sohouseholThe ear and brilln tend to int c l"pret distorted sound as loudness and thusfuseunderestimate the actua l level of undis orted sound .The SCM SO. 100 and I SO. likeThere anall ATethanor that vsim ilar size and it is therefo re adv isable to begin lisLeningkind of rcWillonly result in ano ther fuse fail c ,-e. Themonitor should be returned to ATe if a secondfuse fails.5.4 Input Socket: The aud.o signal ca ble sh ould bemonitor S, demol1scl 'ates very much lower levels of distortionconve nt iona l systems of.1at an artificially low !eve l and G!. r efully increase the vo lume. It is al so possible for theconnected here. Balan ced or unbalanced cablesSCM50. 100 or 150to pro duce su fficient sound pressure levels for you r earsmay be used (See Section 3) .t hemselve s to become a source of distonion and make the sound ap pear harsh. Anyaud ible distortion ind icates that either the system or your ears are being ove rl o aded5.5 Bau Boost (SCM " Pro " only): Prov,des up to6dB of gain in the ,-egion of 40Hz. Use a small4]fault . If this is the case then simply replacing theThere anof any rrconsulta rof each pand that the volum e level should be reduced .
s P E' ci fielnd energy toa t ionSCMSO/IOO/ISOASL5I SCMSOASLSCMIOOASLSCMISOASL25mm (I ")75mm (3")234mm (9")2Smm (I")75mm (3")314mm (12")25mm (I")75mm (3")375mm (15")Driven;HFMFate trans iemLFto recalibrateAn1plitlld l ineadty -t -Zd- 8 - -- OH7-,-,---z - 12:':'k"7"H7""z ----C ut· off FrequI!'ncic5(-6dB 'rec standi ng)---38Hz & 20kHzto access theMatched ResponseiO.5dBsitivity of IV.Dispersion :,I that enables65Hz - 12kH-z - - - ------60Hz - 12k:-H'"7 - - - - - - - - - - - - - z- ---- 32Hz & 20kHz25Hz & 20kHziO.5dBiO.SdBtao" Coherent 10 Coherent ao Coherent 10" Coherenl ao" CoherentMax Conllnuoul SPLI 12dB SPL @ I metroI I SdS 5PL @ I metre117dB SPL @ I metreCrossover Frequen380Hz and 3.5kHz380Hz and 3.SkHz380Hz and 3.5kHzis applied or'"PUc COllne.t.torMalo XLRMale XLRMale XLRquite normal.Input Srn\lti. ,tyI.OV Ba lancedI.OV BalancedI.OV Balancedmay be heardSeruitivlty Trimi6dB (SCM Pro Only)i6dB (SCM Pro Only)i6dB (SCM Pro Only) IOkOh ms tOk Ohms IOkOhms200 Watts RMS100Wam RMS50 Watts RMS200 Watts RMS100 Watts RMSSO Watts RMS200 Watts RMS100 WattS RMSSO Wa tts RMSHorlzOflL11'ill leave a pairVertica'!quite normal:omponents.InputImpt"d .In( AmphfirrpInelo I 0 CoherentOUtp ltLF IFHfonly )--- p r O d J( t5: ActiveO'lt: t IOiild Plott:'t.Ciu"AllB. Boon (SCI-I " P, u H Only)0 to 6dS @ 40 HzCablnc:ot Dlme"\ioI15 ( HxWxD)717 x 304 x 480 mrflOverall W ight48.9kg ( I07.SlblMo n.I1U I }'Ga in Re duction on all ampl lfi t! r plus Tweeter LDR pro te ctionPower Requirement§:100. 115. DOVSO/60HzVoltag e F,'eque.n cyStand5JBrackecsCabinet poI( tfHi - FIflnh.hl! products on ly: Floo r n ands Incl udedAll products: Standa rd fel l wo o d ven eers are av;ulablc 111 Black Ash. Mahogany, C he rr y and f' lalU fal Oak.Other veneers and finish es can be su pplied to special order.tlO'I . (OrI'pq·N\.UItt'oI ""1Al n.II nwrdl. ""1 r r.l.i LlNbnl§pc1l.l on N o 11 17 "So"r- S1i ltWIc.or.:lSf't"'1· P"t .IEFf Sp«fiCJ I)(I(I SUI'I (b td No 2 1'1 1 97 5" TC m.r 1h" 0 11\[ Ig n.ryuP'Q U:;UWid, 1i s. , pnor '!CU. A. I'll( Tr nI luc. r C o":II U1UJrn r'OWl n dATC8 . Warranty and Contactu. r"l"u. u.cilt ' k c l lQud tpuQr ToJJ; hnDiQf)' l.I;IAll ATe products are guaranteed against any defectin materials or workmanship for a period of twoyears from the date of purchase.Within this periodwe will supply replacement parts free of chargeprovided that the failure was not caused by misuse ,7 . Care and Maintenanceyaccident or negligence.High technology material finishes are used in thiS product.The suriaces are durablePUtCh ol r,and with a little care can be kept as good as new even under conditions of heavyWarranty C.1f d w ill ha.v . t.hf"ir warranty perioduse . Normally a dry duster will be all that is required to keep the finishes clean.t!"!ltteru.Jl!J upj ssand thusand 150. like;tortion than)egin listening.,who c.;onlplett· olnd return th e(0ape, iod(I(Jo jx y,.arlirrOfr1[h eHeavy soiling can be cleaned using a cloth slightly moistened with a non-abrasived.t.u" uf plIrch,n\· . Thi!1i gu,lr.anr;l!'(' dof's not hnlir:household cleaner.stJ.t.lIlnry rtght.:aThere are no components within the speaker that can be considered expendable.ATe can be contacted at:or that would benefit from regular maintenance . There is no requirement for anyLoudspeaker Technology Ltd, Gypsy Lane. Astonkind of routine service work and there is no schedule for preventative maintenance.Down. Scroud. GlouceS(ershire GL6 8HR. UK .)ssible for theor your earsThere are no user replaceable parts within the speaker and in the unfortunate event01285 760561Fax:01285 760683oar harsh . Anyof any malfun c tion . repair should be referred'g o verloadedconsultant. the relevan importer. or ATe. ATe has every confidence in the qualityEmail:info@atc.gb.netof each product tha[ it manufactures.Websi,e:www.a[c.gb.nettoeither the supplying dealer orTelephone:5
I. Unpacking and HandlingThe SCM50. 100 and 150 are large. heavy items andshould be handled with care. Always employ asecond person to assist in moving it. Unpackingthem requires a large. open space. preferably neartheir final position .First lay the carton down and open the flaps onits side. While holding the flaps apart turn thecarto n over sO the ope n side is on the ncar.3 . AmplificationLift the outer canon off [he inner packing.Rem ove the end pad from the bottom of theThe choice of parmering amplifier (or the monitors will have significant influence onmonitor.the performance of the system. Consider the following when selecting rhe amplifier :The mon itor can now be stood upright and the With any passive loudspeaker there is a trade-off between low frequencyremainder of the packaging removed .extension and sensitivity. The monitors extended low frequency response meansthat its sensitivity is relatively low. It is advisable therefore to select an amplifier of2. M onitor Pl acementrelatively high powe r capabilities . Use of an under specified amplifier will result inmonitorthe system sounding distorted at high levels and may risk damage . Valve or solidloud speaker will be fundamenta lly influenced bystate amp lifiers with high output impedance should be auditioned carefully toThesubj ecti ve performa nceof anythe acoustic character of the room . in which it isused. and its position w ithin [he room. M ostmon itorsareinstalledinroomscomfortable to sit and talk in.ohenwhichareestablish that their characteristic reduced damp ing at low frequencies isacceptable. Thanks inpan to Super Linear technology and underhung voice coit constructionA mixture ofthe monitors not only demonstrate extremely low distortion at all levels but alsocarpets. curta ins and son: furn ishi ngs will helpa greatly enhanced effective dynamic range . This exceptional distortionensure that middle and high frequencies areperformance. also combined with very wide dispersion. will ruthleSSly revealreasonably well controlled. There may however bedeficiencies in ancillary equipment. It is advisable therefore to audition thelow frequency problems; either too much or tOomonitors with your proposed amplifier and ancillary system.little bass .To minimise low frequency problems themonitors should be kept away from corners orwalls . Sta rt with them positioned on appropriatestands around I metre (rom the side walls and 2metres fro m the back . If the balance is baSS-light.the monitors can be moved towards the backwalls . All rooms vary and it is a good idea to4. ConnectionThe monitors are equ ipped with a "tri ·wire" connection panel that enables separateampl ification o f the bass driver. mid driver and tweeter. Remove t he linking barsbetween the three pairs of terminals if you wish to take advantage of the tri·wirefacility.experiment with both the lis tening and speakerposition until a good compromi se is reached . ForThe term inals can accomodate either stripped cable ends or 4mm plugs. Always useprofessional installations thear egood quality speaker cable with a 2.5mm1 minimum cross sectional area peranconductor (79 strand) . Cable of a smaller cross sectional area or fewe r strands isoftenveryrequirementsspecific. Please consult withexp erien ced professional acoustician if necessary.unsuitable. For cable runs longe r than 10m use a Significantly heavier gauge cable .Consu lt your dealer or consultant (or speCific cable recommendations.Monitors with an asymetri( driver array should be6pOSitioned such that the midrange driver and tweeterEnsure that the positive and negative terminals on each connection panel areare inboard .connected back[0[he corresponding positive and negative [erminals on [he amplifier.
S . ListeningThe ear and brain tend to incerpret distorted sound as loudness and thusunderestimate the actual level of undistorted sound . The SCM50. 100 and 150, likeall ATC monicors. demonstrate verymuch lower levels of distortion thanconvemional s stems of a similar size and it is therefore advisable to begin listeningat an artificially low level and carefully increase the volume. It is also possible for theSCM 50, 100 and 150 to produce suffic ient sound pressure levels for your earsthemselves to become a source of distortion and make the sound appear harsh . Anyaudible distortion indicates that either the system or your ears are being overloadedand that the volume level should be reduced.fluence on6 . Care and Maintenanc eamplifier :frequency,se meansmplifier ofHigh technology material fonishes are used in this product. The surfaces are durableand with a little care can be kept as good as new even under conditions of heavyuse. Normally a dry duster will be all that is required to keep the finishes clean .II result inHeavy soiling can be cleaned using a cloth slightly moistened with a non-abras ive ·fe or solidhousehold cleaner."efullytoJencies isThere are no components within the speaker that can be considered expendable,ar chac would benefit from regular ma intenance . There is no requirement for anykind of routine service work and there is no schedule for prevemative maintenance.1strunionIs but alsodistortion;sly revealThere are no user replaceable parts within the speaker and in the unfortunate eventof any malfunction, repair should be referred to either the supp lying dealer orconsultant. the relevant importer, or ATe. ATC has every confidence in the qualityof each product that it manufactures .:lition the7. Warranty and ContactAll ATC prod uc ts are guaranteed against any defect in materials or workmanship fora period of twO years from the date of purchase . Within th is period we w ill supplys separate1king barsreplacement parts free of charge provided that the failure was not caused by misuse ,accidem or negligence.Ie tri-wirePUt hd!lo r who c.urnplcl c and re[url l t.he W;11"f anty Cat·d will hav e theirw.u rJllt)' periorf extended up co a p",' il d,Iways usearea perpurch.lSc .Thlco guarantee does not iiI nilursix ye an: tdtutor"ystrands isATC can be contacted at:Jge cable.Loudspeaker Technology Ltd, Gypsy Lane, Astonpa nel areTelephone:01285 76056 1, amplifier.Fax:01285 760683rron,the dateorrights.Down. Stroud, Gloucestershire GL6 8HR. UK .Email :info@atc.gb.netWebsite :www.atc.gb.net7
pecificat onsI SCMSOSLSCMIOOSLSCMISOSL25mm ( I")75mm (3")234 mm (9")25mm ( I")75m m (J')3 14mm ( 12")25mm (I ")75mm (3")375mm ( 15")Arnphn.ld( Lill i iii I it; tldS70 Hz - 12kHz65Hz - 12kHz60Hz - 12kHz( 6JB tCut-otl FI r4"enCIl!!i e 'tilndm ,38Hz & 20kH z32Hz & 20kH z25Hz & 20kHzr-f.J.h.h ed R ,purlHto .5d8to.5dBto.5d8H CIP l/l. ,:l1 BO Coh erenttaoOCoherent" .rl ,. IO· Co he rent 10 " Co herent 80 Coherent:t I 0 C oherentHFHFLFObI"11i fl.1I me treI 12a B SPL @ I mor r.115dB SPLC,U SU) t T F,.t-\, rn ,380Hz an d 1.5kHz380Hz .nd 3.5kHz!nput Contll (fflrAll products; Bind ing PosLS/4mm Socket.s (Tn-W ire capabl e)117dB SPL @ I metre180Hz and l5kHz85dB @ I W an @ I metre88dB @ I Wac @ I me rre90dB @ I W att @ I me rre8 Ohm s8 Ohmsa Ohms100 . ISOD WallsI 00 . I 500 W t ,100·1500 Wa mC"PlntFt D,rlll .'-'''' ( I h W . ()717 x 304 )( 425 mn-.834 x 400 x 5JOmm884 x 498 x 511 mm0 ,II Nc. hL41.1 kg (90.5 Ib)57.0kg ( 126 .5Ib)67.2kg ( 14B. llb)S o·tilit.'!Rte- onHl' ndcd Po't IArnphfillH.-F. pro ducu only. Floor suo ds Uld uded.AU pro dccu: Stancbrd reiJ wood vcnters arc ava ilable to Black As h. Mahogany. Che rr y and Natu ra! Oak.C abinet. Flnl . lu O t her veneers J.n d fin ishes ca n b stJpplied to special ord er.IEFE Spea&iu.ll()A SuNk' Nt:. l IY· PHSAle I n" ,tbt r tc ''''1 product . '-4 'P'K"o(.llJOtll w::tJ\ooJ(,PfOUl i"oOlI ' Mou,tl(ln.nukx.H Cc II tnldWI ",,. tfi/l ATCII tN 'il1!-\tu-td III8Il'QlIo CIfLCrud T.c"'"'''QnLtd
The difficulty inherent in designing such loudspeakers is one of scale. Hi -fi levels of accuracy and detail call for lightweight moving parts and delicate engineering. Professional monitor levels of performance however demand far more robust components engineered to survive the rigours of
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