English3IF2115/2112AS Owner’s ManualBi-Amp/Passive switchSelect the Bi-Amp mode (bi-amp drive) orthe Passive mode (full-range drive).Do not change the Bi-amp/Passive settingwhile the speaker is in use.Neutrik Speakon NL4 plug wiringConnect the plugs as shown below.Be sure to use proper speaker cable – notshielded instrument or line cable – for allspeaker connections.The Speakon jack and barrier strip terminals areconnected in parallel.Suspended Installation● The strength of the suspension points on the speaker is 60 kgper point (maximum).● Before doing any installation or construction work, consultwith an installation expert.● When choosing the installation location, suspension wire andmounting hardware, make sure all are strong enough tosupport the weight of the speaker.● Some fittings may deteriorate over extended periods of timedue to wear and or corrosion. For optimum safety, theinstallation should be checked thoroughly at regular intervals.■ Using eye bolts for suspensionFor optimum safety, make sure to carefully follow theprecautions below.● Use only the supplied eye bolts.● Use three or more eye bolts for suspended installations.● Use the optional array frame if you intend to suspend aspeaker from another suspended speaker.● Install the eye bolts to multiple surfaces of the speaker, notjust one surface.■ Eye bolt strengthKeep in mind that the strength of the eye bolt differsdepending on the suspension angle of the speaker. Makesure that the load for each eye bolt is less than 740 kgwhen suspending at an angle of 0 degrees, and less than185 kg at an angle of 45 degrees.When using the eye bolts,make sure that thesuspension angle is withinthe range of 0 to 45degrees, as shown below.Do not suspend the eye bolts asshown in the diagram below.Rotatable hornThe horn directivity of the speaker is set at the factoryso that the upward spread is narrow and the downwardspread is wide.1. Remove all fixing screws on the grille, and remove thegrille from the speaker.2. Remove all screws installed on the horn, pull out thehorn from the speaker, rotate the horn 90 degrees,and re-install the horn to the speaker.Be careful when rotating the horn so that you do notaccidentally cut the connection wires connected to the horndriver.If you use the speaker as a floor monitor, change thehorn dispersion so that the upward spread is wide andthe downward spread is narrow, as shown in thediagram.NEUTRIK plug Bi-Amp Passive1+ LF+ +1– LF– –2+ HF+2– HF–Yamaha cannot be held responsible for damage or injurycaused by insufficient strength of the support structureor improper installation.CAUTIONCAUTION2+ 2-1- 1+NOTECAUTIONCAUTION0º (740kg)45º (185kg)90º (148kg)CAUTIONCAUTIONNOTECAUTIONRotate 90 degreesVerticalHorizontalNarrowWideNarrowWideNOTEHorizontalWideNarrow