Electro-Voice DH1012 User's Manual
Contents
1. GENERAL SPECIFICATIONS Power Frequency Response 400 10 000 Hz Essentially flat 400 2500 Hz with 6 dB per octave rolloff to 6 kHz 12 dB per octave rolloff to 10 kHz rapid rolloff beyond Nominal Impedance 8 ohms Minimum Impedance 6 3 ohms on HR series horns above 300 Hz Nominal DC Resistance 45 ohms Nominal Efficiency 25 band limited pink noise input 400 2000 Hz assuming 8 ohm driver impedance Maximum Long Term Acoustic Power Output 24 Hours 10 watts 17 9 volts RMS applied to nominal 8 ohm load pink noise signal with 10 dB crest factor band limited to 400 2000 Hz HR series horns Recommended Minimum Crossover Frequency 400 Hz Short Term Power Capacity 5 Seconds 200 watts above 1500 Hz 100 watts above 800 Hz 60 watts above 400 Hz 40 28 3 and 21 9 volts RMS respectively applied to nominal 8 ohm impedance sine wave signal power not to exceed 40 watts when averaged over any 20 second period HR series horns Long Term Average Power Capacity 24 Hours 40 watts 17 8 9 volts RMS applied to nominal 8 ohm peter PINK noise signal with 10 dB crest factor band limited to 400 15 000 Hz HR series horns Sound Pressure Level at 10 Feet 1 Watt Input 106 dB HR4020 horn 104 dB HR6040 horn 102 dB HR9040 horn 2 28 volts RMS of pink noise band limited to 800 2500 Hz free field distance measured from horn mouth Voice Coil Diameter 7 62 cm 3 in Voice Coil Construction Flat edge2. ions subject to change without notice Part Number 535639 636 a Gulton souran ELECTRO VOICE INC 600 CECIL ST BUCHANAN MICH 49107 MANUFACTURING PLANTS AT E BUCHANAN MICH E NEWPORT TENN E SEVIERVILLE TENN E GANANOQUE ONT E LITHO IN U S A
3. with four 1 4 20 bolts Appropriate bolts and washers are packed with each HR horn HR SERIES HORNS The HR series horns are light weight modified radial designs that provide extremely uniform beamwidth and directivity over a wide frequency range 400 Hz to 16 kHz Detailed information is presented on separate data sheets WARRANTY Limited Electro Voice Professional Sound Re inforcement Loudspeakers and Accessories are guaranteed for five years from date of original purchase against malfunction due to defects in workman ship and materials If such malfunction occurs unit will be repaired or replaced at our option without charge for materials or labor if delivered prepaid to the proper Electro Voice service facility Unit will be returned prepaid Warranty does not cover finish or appearance items or malfunction due to abuse or operation at other than specified conditions Repair by other than Electro Voice or its authorized service agencies will void this guarantee For shipping address and instructions on return of Electro Voice products for repair and locations of authorized service agencies please write Service Department Electro Voice Inc 600 Cecil Street Buchanan Michigan 49107 Phone 616 695 6831 Electro Voice also maintains complete facilities for non warranty service Service and repair address for this product Electro Voice Inc 600 Cecil St Buchanan Michigan 49107 Specificat
4. wound aluminum wire on an aluminum form Diaphragm Construction Aluminum dome with polyamide surround Magnet Material Ceramic Indox V Horn Throat Diameter 3 3 cm 1 3 in Horn Mounting Method Bolt on 4 equally spaced holes on a 3 5 in diameter circle 1 4 20 threads bolts supplied with HR series horns ElectroVoice a gutan company Transducers for High Quality Designed Sound Systems Model DH1012 High Frequency Driver Size 22 9 cm 9 in overall diameter 7 6 cm 3 in overall deep Net Weight 7 25 kg 16 Ibs Shipping Weight 7 9 kg 17 Ibs 7 oz DESCRIPTION The Electro Voice DH1012 is a high performance high frequency driver apable of urprecedently high acoustic power Output over a wide frequency y range This performance results from a combination of high conversion efficiency and high power handling capacity attained through design which includes 1A SEN aluminum ela with for extends ua respons A polyamide eae surround for large excursio fracture A voice coil of flat edge wound aluminum wire for high BL product efficient magnetic density 5 An aluminum voice coil form for rapid heat transfer 6 Glass filled Lexan phasing plug capable of in phase transfer of diaphragm energy to nearly 20 kHz WwW structure for high flux DRIVER INSTALLATION The DH1012 is designed for use with the Electro Voice HR series horns The DH1012 is mounted to these horns
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