PRECISION TRANSDUCERS - Oktava

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WOOFERLF15G401Professional Low Frequency TransducerThe LF15G401 is a 15-inch woofer with linear frequency response characteristicsand very high power handling. The LF15G401 uses a fibre loaded cone assemblyalong with a high excursion triple roll, constant geometry surround. This combinationprovides remarkable strength and a peak to peak maximum excursion of 52 mm.PART NUMBER 11100014Features4-inch, fibreglass inside-outside copper voice coil1800 Watt continuous program power handling97 dB Sensitivity30 Hz - 1.5 kHz Frequency rangeDual spider design with silicon based dampeningcontrolApplicationsThe LF15G401 is ideal for use in applications where incredible power handling,long excursion and perfect control is required. Ideal for high quality professionalbass reflex and bass-horn systems. The robust mechanical design and optimisedweight of the device make it desirable for use in fixed installation or portableprofessional loudspeaker systems. Very good for 3 way, extended low frequencyconfigurations.Triple-roll surround and corrugated straight conegeometry3015003420 100 1.000 10.000 20.000
8 x ø 6.5 mm holes to 45°on 371 mm and on 376 mmGeneral Specifications148 mmø 393 mm16 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 Parameters4380/15816008009735 - 1500340/13.452/2.16.1100/4Copper23/0.92inside/outside12/0.5No pressed pulpStraightPolycottonTriple rollmm/inchohmWattsWattsdBmm/inchmm/inchohmmm/inchmm/inchSPL, 1w/1m (dB)1101009080ø 220 mmø 351 mmResonance frequencyDC resistanceMechanical factorElectrical factorTotal factorBL FactorEffective Moving MassEquivalent Cas air loadEffettive piston areaMax. linear excursion (mathematical) 5Voice - coil inductance @ 1KHzHalf-space efficiencyFsReQmsQesQtsBLMmsVasSdXmaxLe1KEff364.86.20.270.2624.61501500.0918.52.52.50HzohmT · 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 6393/15.5371-376/14.6-14.86.5/0.3352/13.9360/14.2158/6.24.3/0.15mm/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 Weight12.2/26.812.8/28.4Kg/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.35
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Page 31 and 32: 8 x ø 8 mm holes to 45°on 438 mm1
Page 33 and 34: 8 x ø 8 mm holes to 45°on 438 mm
Page 35: 8 x ø 6.5 mm holes to 45°on 371 m
Page 39 and 40: 8 x ø 6.5 mm holes to 45°on 371 m
Page 55 and 56: 8 holes ø 7 mm to 45°on ø 296 mm
Page 57 and 58: 8 holes ø 6,5 mm to 45°on ø 293
Page 59 and 60: 8 holes ø 6,5 mm to 45°on ø 293,
Page 67 and 68: 4 holes ø 6,5 mmon ø 221 mmGenera
Page 69 and 70: 4 holes ø 6,5 mmon ø 221 mmGenera
Page 71 and 72: DIAPHRAGMASSEMBLIESDiaphragms and s
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03/2006the rules of soundcod. 10116
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