PRECISION TRANSDUCERS - Oktava

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WOOFERL8S800Professional Low Frequency TransducerVery high linearity and low distortion are special features of this carbon-fibre conetransducer. The use of an RCF exponential carbon fibre cone of exceptional strengthand light weight drastically reduces the break-up, thus ensuring a high level ofefficiency and excellent transient response. The cone is completely water-repellent.Maximum care in the selection of the components and in the assembly processmake the L8S800 an extremely reliable woofer.PART NUMBER 11120007Features1.5-inch, Kapton former, copper voice coil340 Watt continuous program power handling93 dB SensitivityApplicationsThe L8S800 is the ideal woofer for very compact, full range, bass reflex systemswhere a good balance between mid-bass linearity and low frequency extension isrequired. The light mass and mid-range extension is perfect for coupling to a smallsize driver or tweeter.50 Hz - 4 kHz Frequency rangeExponential, high strength, carbon fibre coneM-roll damped surround5040006620 100 1.000 10.000 20.000
4 holes ø 6,5 mmon ø 221 mmGeneral Specifications90 mm208 mm9 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 DesignThiele - Small Parameters4200/883401709350 - 4000165/6.530/1.27.338/1.5Copper15/0.62outside7/0.3Carbon fiberCurvedPolycottonM - rollmm/inchohmWattsWattsdBmm/inchmm/inchohmmm/inchmm/inchSPL, 1w/1m (dB)1101009080ø 134 mmø 183 mmResonance frequencyDC resistanceMechanical factorElectrical factorTotal factorBL FactorEffective Moving MassEquivalent Cas air loadEffettive piston areaMax. linear excursion (mathematical) 5Voice - coil inductance @ 1KHzHalf-space efficiencyFsReQmsQesQtsBLMmsVasSdXmaxLe1KEff606.14.10.460.4110.321220.0215.80.91.00HzohmT · mgrlitersm2mmmH%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 6239/9.4221/8.76.5/0.3184/7.24184/7.2494/3.70.8/0.03mm/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 Weight3.1/6.83.3/7.3Kg/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 200-2 kHz pink noise signal with input power of 2.83V @ 8 Ohms. - 4 Thiele-Small parameters are measured after a 2hour 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.67
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PRECISION TRANSDUCERS2006the rules
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