12GA50 - Beyma

12GA50F U L L - R A N G EL O U D S P E A K E RKEY FEATURES• High Sensitivity (102 dB 2.83v @ 1m @ 2π) anddouble cone for an extended bandwidth coverage• Special treated surround to obtain an extremelylinear frequency response• Short-circuit copper ring for low harmonicdistortion and constant impedance modulus• 2” aluminium voice coil with kapton former• Designed for high quality full-range reproductionand music instruments reinforcementGENERAL DESCRIPTIONThis full-range transducer offers two main points of interest: an extremely high sensitivity (102 dB) and an extended frequencyresponse. Both characteristics make it suitable for high quality systems. Moreover, its versatile design allows it to be used as afull-range transducer in guitar or organ amplification or in sound reinforcement systems.Beyond its frequency response advantages, this loudspeaker offers more: it takes profit of the improvements achieved in our lowfrequency-high power transducers. Thus, it incorporates a high quality voice coil made of high temperature magnet wire andkapton former. Thanks to this design concept of strength, the 12GA50 reaches a great power handling.FREQUENCY RESPONSE AND DISTORTION CURVESFREE AIR IMPEDANCE CURVENote: on axis frequency response measured with loudspeaker standingon infinite baffle in anechoic chamber, 1w @ 1m.FREQUENCY RESPONSE OUT OF AXIS

12GA50F U L L - R A N G EL O U D S P E A K E RTECHNICAL SPECIFICATIONSNominal diameterRated impedanceMinimum impedancePower capacity *Program powerSensitivityFrequency rangeRecom. enclosure vol.Voice coil diameterMagnetic assembly weightBL factorMoving massVoice coil lengthAir gap heightX damage (peak to peak)MOUNTING INFORMATIONOverall diameterBolt circle diameterBaffle cutout diameter:- Front mount- Rear mountDepthVolume displaced by driverNet weightShipping weightResonant frequency, fsD.C. Voice coil resistance, ReMechanical Quality Factor, QmsElectrical Quality Factor, QesTotal Quality Factor, QtsEquivalent Air Volume to Cms, VasMechanical Compliance, CmsMechanical Resistance, RmsEfficiency, ηo (%)Effective Surface Area, Sd (m 2 )Maximum Displacement, XmaxDisplacement Volume, VdVoice Coil Inductance, Le @ 1 kHz300 mm. 12 in.8 ohms.6.8 ohms.250 w AES500 w102 dB 2.83v @ 1m @ 2π70 - 18000 Hz20 / 70 l 0.7 / 2.45 ft. 352 mm. 2 in.2.75 kg. 6.1 lb.10 N / A0.034 kg.9 mm.7 mm.24 mm.312 mm. 12.3 in.294.5 mm. 11.6 in.277.5 mm. 10.9 in.280 mm. 11.02 in.139 mm. 5.47 in.5.5 l 0.19 ft. 33.55 kg. 7.81 lb.4 kg. 8.81 lb.THIELE-SMALL PARAMETERS **90 Hz6.2 ohms.14.81.261.1634 l87 µm / N1.34 kg / s2.10.0530 m 22 mm.105 cm. 30.6 mHDIMENSION DRAWINGSMATERIALS• Voice coil: aluminium wire with high temperaturebonding strength. Kapton former, able to withstandhigh temperatures.• Cone: light and stiff paper cone to provide good midfrequencyresponse and tweeter cone for extendedbandwidth.• Surround: treated paper to mechanically equalizethe frequency response.• Spider: cotton spider.• Metal parts: high quality magnetic alloy plates.• Basket: specially designed die cast aluminium basketto avoid disturbing resonances.• Magnet: high Curie temperature ferrite.Notes:*The power capacity is determined according to AES2-1984 (r2003) standard.Program power is defined as the transducer’s ability to handle normal music program material.**T-S parameters are measured after an exercise period using a preconditioning power test.The measurements are carried out with a velocity-current laser transducer and will reflect the longterm parameters (once the loudspeaker has been working for a short period of time).a c ú s t i c a b e y m a , s . a .Polígono Industrial Moncada II · C/. Pont Sec, 1c · 46113 MONCADA - Valencia (Spain)· Tel. ( 34 ) 96 130 13 75 · Fax ( 34 ) 96 130 15 07 · http://www.beyma.com · E-mail: beyma@beyma.com ·