Yamaha CXS18XLF Owner's Manual

Contents

Yamaha CXS18XLF Owner's Manual Manual pdf 9 page image

CXS series Owner’s Manual 9Cardioid Mode SetupBecause directivity in the low frequency range is weak, the output sound from the subwoofer diffracts not only towardthe audience but also to the stage with almost the same sound pressure. By using the Cardioid mode, bass to theaudience is summed up and bass to the stage is canceled. This suppresses the bass volume on the stage, providinggreater headroom before feedback, and resulting in more powerful bass for the audience.In order to setup the Cardioid mode, you should process the signals correctly using a processor. Also, the signalsfrom an amplifier to both FRONT and REAR are required. Visit the CXS product page of the Yamaha Pro Audioglobal website for details on the setting information of the processors for the CXS.Using the [OUTPUT] jack along with a 4-pole speakON cable, you can connect the FRONT signal and REAR signalfrom a 2-channel amplifier with a single cable.TroubleshootingIf any specific problem should persist, please contact your Yamaha dealer.Symptom Possible causes Possible solutionNo sound. The cable is not connected properly.Connect the speakON cable to the [INPUT/PARAL-LEL] jack correctly. Make sure to connect the amplifieroutputs to the 1+/1– contacts of the speakON cable.Sound is inter-rupted suddenly.The built-in protection system has beenenabled because the input volume is exces-sive.To reset (cool down) the protection system, lower thevolume of the input device, or stop the input. Wait for30 seconds or longer. If the unit doesn’t automaticallyreset itself, there is a possibility of malfunction of thespeaker unit.The speaker unit is damaged.If no sound although the connection and signal levelare appropriate, there is a possibility of malfunction ofthe speaker unit. Contact your Yamaha dealer.The amplifier shutsdown.When connecting the speakers in parallel, thetotal impedance of the speakers is less thanthe minimum load impedance of the amplifier.(For example, when more than three eight-ohm speakers are connected in parallel to anamplifier having a minimum load impedanceof four ohms.)Lower the number of speakers connected in parallel,or use the amplifier which can drive with the totalimpedance of the speakers, in order to not be lessthan the minimum load impedance of the amplifier.The protection system of the amplifier hasbeen enabled because the input volume isexcessive.Wait until the amplifier cools down. Before using itagain, lower the input volume.Sound is distorted. Input volume is excessive. Lower the volume of the input device so that the limitindicator of the amplifier lights only occasionally.2-channel amplifierCXSCARDIOID FRONTCXSCARDIOID REAR1+/1–:CARDIOID REAR2+/2–:CARDIOID REAR1+/1–:CARDIOID FRONTOUTPUTRoutes the signalsreceived via 2+/2– to1+/1– for output.Fromamplifier To next CXS4-pole speakON cable