Altec Lansing 150B User's Manual
Contents
1. 150B BI ACOUSTIC HORN SYSTEM SOUND PRODUCTS DIVISION DESCRIPTION The ALTEC 150B Bi Acoustic Horn System is a versatile two way speaker system housed in a weatherproof compact frame It provides excellent reproduction of speech and music for public address applications indoors or out doors The 150B uses a highly efficient trans ducer with two sound paths emanating from both sides of the diaphragm Lower frequencies are directed through a long reflex air column while frequencies above 1000 Hz are directed through a straight sectoral horn The sectoral Registered trademark of Dow Corning Corp horn can be positioned in either a horizontal or vertical plane The housing is heavy double reinforced Fiberglas which eliminates struc tural resonance A 6 foot heavy duty lead passes through a rainproof cable strain relief at the rear of the horn to provide input connections Use of an ALTEC matching transformer mounted in the ALTEC 21256 Weatherproof Transformer Housing adapts the horn system for 70V line operation A mounting bale is supplied with each unit to ease installation SPECIFICATIONS Power Rating Frequency Response Impedance Pressure Sensitivity Equivalent EIA Rating Distribution Pattern Crossover Frequency 50 watts pink noise 150 Hz to 12 kHz 8 ohms 103 dB SPL measured at 4 on axis with 1 watt input of pink noise from 500 3000 Hz Ref 0 0002 dyne cm 122. and weatherproof Dimensions shall be 125 H x 19 W x 21 D including mounting bale Weight shall be 15 pounds 10 ounces The loudspeaker horn system shall be the ALTEC Model 150B 1515 SOUTH MANCHESTER AVENUE ANAHEIM CALIFORNIA 92803 LITHO IN U S A CP 674 5K AL 1705 3
3. 0 dB SPL measured at 4 on axis with 50 watts input of pink noise from 500 3000 Hz 56 dB SPL measured at 30 on axis with 1 mW input Adjustable 120 horizontal x 90 vertical or 90 horizontal x 120 vertical 1000 Hz ARCHITECT S AND ENGINEER S SPECIFICATIONS Mounting Finish Dimensions Mounting Bale Dimensions Weight Accessories must be ordered separately Mounting bale supplied High impact resistant Fiberglas 125 32 07 cm H x 19 48 26 cm W x 20 50 80 cm D without mounting bale 21 53 34 cm D with mounting bale 2 5 08 cm Hx 135 34 61 cm W x 1118 28 26 cm D 15 pounds 10 ounces 7 09 kg ALTEC 70V Matching Transformers 21256 Transformer Housing The loudspeaker horn system shall be of the two way coaxial type The low frequency horn shall be folded and be not less than 58 inches in total length The high frequency horn shall be a straight sectoral horn and shall be at least 3 7 inches in length The loudspeaker horn system shall meet the following performance criteria Power rating 50 watts pink noise Frequency response 150 Hz to 12 kHz Impedance 8 ohms Pressure sensitivity 103 dB SPL measured at 4 on axis with 1 watt input of pink noise from 500 3000 Hz Ref 0 0002 dyne cm Distribution pattern 90 x 120 with distribution controlled by the position of the high frequency horn The housing shall be dustproof moistureproof
Download Pdf Manuals
Related Search