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Western Electric 757A
Posted at 2011-03-25 18:35:05
<P><img onLoad='miniSelfResize(contents_10,this); if(this.parentNode.tagName=="A"){this.onclick = "";}' src="/shop/lib/meditor/../../data/editor/1301045676.jpg"> </P> <P> </P> <P>Western Electric 757A <BR><BR>Loudspeaker utilizes two Loudspeaker and a frequency dividing nework.<BR>The low frequency Loudspeaker is the Western Electric 728B which has been widely acclaimed for its unusual "presence" in reproduction.<BR>The high frequency Loudspeaker is a713C Receier used in conjuction with a newly designed cast aluminum sectoral horn (KS-12027) The sectoral partitioning avoids reflections in the horn column The horizontal sound distribution is 90 degrees.<BR>A suitable network is used to divide the audio input to the Loudspeaker A control is incorporated as a part of the nework. it is pre-set at the factory for optimum performance; readjustment can be made when necessary to compensate for unusual acoustical conditions. The attenuator controls the over-all input to the high frequency receiver in four steps of approximately one bd each, and is operated by means of a slotted screw in the rear of the cabinet.<BR>The 757A is furnished in a utility can be mounted in the walls of broadcast station control rooms, or it can be readily refinished (except for the acoustic material on the front) to blend into the architectural treatment of existing installations. Where the decorative requirements make it desirable the utilitv cabinet can be easily mounted within a piece of furniture harmonizing with the other appointments.<BR><BR><BR>Frequency Response 60 to 15.000 cycles<BR>Coverage Angle 90" horizontal : 90" vertical<BR>Power Handling 30 Watts<BR>Input Impedance 4 Ohms(dividing network)<BR>Cabinet Acoustically treated front.remainder of cabinet gray finish <BR> which can be refinished to blend with individual installations.<BR>dimensions 20" hi . 30 1/2 wi . 13 3/4 deep<BR>weight 82 pounds<BR><BR></P>
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