PRECISION TRANSDUCERS - Oktava

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MID-BASSMB12N351Professional Low Frequency TransducerPART NUMBER 11100026Features3,5-inch, inside-outside copper voice coil1300 Watt continuous program power handling99 dB SensitivityThe MB12N351 is designed to provide an excellent frequency response linearitywith very low distortion. A very strong neodymium magnetic structure guaranteedynamic and precision, a new and unique 3,5” voice coil design provides a veryhigh power handling, especially recommended in comparison to a standard 3”voice coil. The unique Dual-forced air venting system guarantee a very efficientvoice coil ventilation to minimize the power compression and provide higher powerhandling.ApplicationsThe MB12N351 is ideal for use in applications where is required a very highefficiency and linearity with high power handling. It’s especially recommended forhigh powered multi-way system.45 Hz - 3 kHz Frequency rangeDual-forced air ventilation for minimum powercompression4530001220 100 1.000 10.000 20.000
8 holes ø 6,5 mm to 45°on ø 293,5 mm and on ø 304 mmGeneral Specifications138 mmø 320 mm13 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 Design300/12813006509945 - 3000260/10.239/1.57.087/3.4Copper16.5/0.652inside/outside11/0.43No pressed pulpCurvedPolycottonM - rollmm/inchohmWattsWattsdBmm/inchmm/inchohmmm/inchmm/inchThiele - Small Parameters4SPL, 1w/1m (dB)1101009080ø 118 mmø 280 mmResonance frequencyDC resistanceMechanical factorElectrical factorTotal factorBL FactorEffective Moving MassEquivalent Cas air loadEffettive piston areaMax. linear excursion (mathematical) 5Voice - coil inductance @ 1KHzHalf-space efficiencyFsReQmsQesQtsBLMmsVasSdXmaxLe1KEff555.64.50.210.2022.554610.00535.51.654.66HzohmT · mgrlitersm 2mmmH%Impedance (ohms)3161001020 100 1.000 10.000 20.000Frequency (Hz)Frequency response curve of the loudspeaker taken in a reflex box with an internal volume of 50 litrestuned at 65 Hz.Mounting InformationOverall DiameterBolt Circle DiameterBolt Hole DiameterFront Mount Baffle Cut-outRear Mount Baffle Cut-outDepthVolume occupied by the driver 6320/12.6293-304/11.5-126.5/0.3282/11.1284/11.2138/5.42.2/0.077mm/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 Weight4.4/9.75.2/11.4Kg/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 500-2,5 kHz 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.13
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Page 57 and 58: 8 holes ø 6,5 mm to 45°on ø 293
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03/2006the rules of soundcod. 10116
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