PRECISION TRANSDUCERS - Oktava

General Specifications8 x ø 6.5 mm holes to 45°on 442 mm and on 447mm188 mmø 465 mm18 mmNominal DiameterRated ImpedanceProgram Power 1Power handling capacity 2Sensitivity 3Frequency RangeEffective Piston DiameterMax Excursion Before Damage (peak to peak)Minimum ImpedanceVoice Coil DiameterVoice Coil MaterialVoice Coil Winding DepthNumber of layersKind of layerTop Plate ThicknessCone MaterialCone DesignSurround MaterialSurround Design460/18818009009830 - 1000395/15,650/2.05,9100/4Copper23/0.92inside/outside12/0.5No pressed pulpStraightPolycottonTriple rollmm/inchohmWattsWattsdBmm/inchmm/inchohmmm/inchmm/inchThiele - Small Parameters4SPL, 1w/1m (dB)1101009080ø 225 mmø 421 mmResonance frequencyDC resistanceMechanical factorElectrical factorTotal factorBL FactorEffective Moving MassEquivalent Cas air loadEffettive piston areaMax. linear excursion (mathematical) 5Voice - coil inductance @ 1KHzHalf-space efficiencyFsReQmsQesQtsBLMmsVasSdXmaxLe1KEff334.87.60.300.2924.61822680.1228.52.43.09HzohmT · mgrlitersm 2mmmH%Impedance (ohms)3161001020 100 1.000 10.000 20.000Frequency (Hz)Frequency response curve of the loudspeaker taken in a hemispherical, free field environment and mounted in aclosed box with an internal volume of 600 litres (21,2 cu.ft) enclosing the rear of the driver.Mounting InformationOverall DiameterBolt Circle DiameterBolt Hole DiameterFront Mount Baffle Cut-outRear Mount Baffle Cut-outDepthVolume occupied by the driver 6465/18.3442-447/17.4-17.66.5/0.3424/16.7424/16.7205/8.17.0/0.25mm/inchmm/inchmm/inchmm/inchmm/inchmm/inchliters/ft3Shipping Information20 100 1.000 10.000 20.000Frequency (Hz)Impedance magnitude curve measured in free air.Net WeightShipping Weight13/28.913.7/30.4Kg/LbsKg/LbsNotes to Specifications1 Program Power is defined as 3 dB greater than AES power. - 2 AES standard. - 3 Sensitivity measurement is based on a 100-500 Hz pink noise signal with input power of 2.83V @ 8 Ohms. - 4 Thiele-Small parameters are measured after a2 hour warm up period running the loudspeaker at full power handling capacity. - 5 The maximum linear excursion is calculated as: (Hvc - Hg)/2 + Hg/4 where Hvc is the voice coil depth and Hg the gap depth. - 6 Calculated for front mountingon 18 mm thick board.25