Ecler PhiloS Series Instruction Manual

Contents

Ecler PhiloS Series Instruction Manual Manual pdf 5 page image

55. CONNECTIONSThe connection cables which connect the amplifiers output and the speaker should beof good quality, have sufficient conductor area and be as short as possible. The latter fact isspecially important when the distance is long and the load impedance low (4-8 Ω). A cross-section of at least 2.5mm2 is recommended for distances up to 10m; 4 or 6mm2 for longerdistances. Following formula gives the required section, assuming 4% losses:Length in mCross section in mm2 = Loudspeaker Impedance in ΩAlways respect polarity. All connections are Speak-on type. The pin-out is indicated inthe diagram.6. RECOMMENDED AMPLIFIERFollowing table shows the output power of the amplifier adequate to each acousticsystem:PHILOS 10 between 200 and 400WPHILOS 12 between 250 and 500WPHILOS 15 between 300 and 600W7. PRE-AMPLIFYING MIXERSAvoid excessive gain adjustments in the equalizer or tone control sections.8. PLACEMENT AND MOUNTINGConsider following general rules:Place the acoustic enclosures on solid and firm surfaces. No obstacles should standbetween the enclosures and the audience. The high frequencies are very directive compared tothe low frequencies, so that any obstacle will impair their response. In case large audiencesmust be addressed, a better long distance sound propagation will be achieved if the enclosuresare flown high enough.Two stands are provided with each PHILOS cabinet in order to be installed in one ofthe sides allowing the speaker cabinets to be used as stage monitors (see drawing)9. SUSPENDING THE UNITThe PHILOS series acoustic enclosures may be flown either using the optional SR 12accessory or by using its 10 rigging points.These rigging points consist of four embedded nuts on the back and six nuts on thetop and bottom of the unit.When using SR12 fixings, an additional safety cable must be attached.The units must never be flown from their transportation handles.