Martin Audio O-LINE Manuel utilisateur

The Martin Experience

Powering your

O-Line™

(For general system preparation, see the O-Line

system preparation - preliminary guidance)

1

Powering your O-Line™

(Forgeneralsystempreparation,seetheO-LinepreliminaryInstallationGuide)

General

Your O-Line is deliveredinblocksof4modulesreadywiredinparallel.Thesefour‐moduleblocksmaybe

separated into smaller blocks or individual modules, linked and paralleled to other blocks or modules using

shortlinkwires‐orseriesconnectedtootherblocksormodulesusingtheseriesConnectorpcbsuppliedwith

eachfour‐moduleblock(seeillustrationbelow).

TheConnectorpcbalsoprovidesaninputtermination.

Thisallowstheinstallertobuildanarrayofappropriatelength(werecommend6%ofeachplanetobecovered

forgoodspectralbalance)withelectricalcharacteristicsbestsuitedtotheMartinAudiopoweramplifier

chosen.

2

Amplifierchoicesandlimitersettings

ThefollowingchartshowsMartinAudiopoweramplifierchoices(indicatedbydots)andMartinAudioDX1.5or

DX2limitersettings(inred)toobtainoptimalperformancefromthewiderangeofO-Linearraysizesand

patchconfigurationspossible.

Single channels, two channel and four channel configurations are shown. Multi‐channel configurations are

usefulwherezonecontrolmayberequired.

To avoid amplifier clipping (which dumps excessive power into the HF arrays in the form of odd‐order

harmonics)itisbesttochoosethehighestpoweramplifierintherangeindicated.Notethatpoweramplifiers

mustbesettotheindustrystandardmaximumvoltagegainof32dB(x40)withacorrectlylimitedDX1.5orDX2

systemcontrollertocomplywithwarrantyconditions.

(Thischartisrepeatedfull‐sizeonthenextpageforeasyreference)

ClipLimsettings

MartinAudioloudspeakersareAESpowerrated.AESratingsallowforupto6dBvoltage(4xpower)

instantaneouspeaks.WethereforerecommendthatyousetyourDX1.5orDX2outputchannelClipLimsto

+6dB.

Controllerpresets?

NotethatwedonotpublishfixedpresetsfortheO-Line–apartfromrecommendingastandard60Hzhighpass

filterandtherequiredlimitersettings.TheO-LineSoftware–usedtooptimisethearrayshape–also

generatesthecontrollersettingsrequiredforaflatin‐situsystemresponseortomeetyourchosenhousecurve

usingtheOptimiseEQfunction.

3

4

O-Linearraypatches

SingleO-Linemodulesare16ohmelements.Fourmodulesaresuppliedineachcarton.Thesefourmodulesare

connected in parallel to form a standard 4 ohm block but may be reconfigured, paralleled or series

connectedtoprovideawidevarietyofseries/parallelconfigurationschosenfromtheprecedingchart.

Singlechannelconfigurations

1modulearray(16ohms)

2modulearray(8ohms)

4modulearray(4ohms)

Pleasenotethatifyoudon’tunderstandseriesandparallelelectricalconfigurations,youarestrongly

advisedtoenlisttheadviceofaprofessionsoundsystemtechnicianorexperiencedinstaller.

5

6modulearray(2.67ohms)

6modulearray(10.67ohms)

6

8modulearray(8ohms)

12modulearray(5.3ohms)

7

16modulearray(4ohms)

8

24modulearray(2.67ohms)

9

Twochannelconfigurations

6modulearray(5.34ohmsperchannel)

8modulearray(4ohmsperchannel)

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