Telex HD-3A User's Manual
Contents
1. HD 3A Dual Sided Headset with 21dB NRR Flexible Dynamic Boom Mic amp A4F Connector The HD 3A is a dual sided monaural hearing protector type headset with noise canceling dynamic micro phone EPA rated NRR of 21 dB The polyurethane earcups house 150 dynamic elements and feature an easily adjustable headband The 6 cord is coiled for tangle free use Wiring Diagram HD 3A Specifications Connector Termination XLR 4 pin Female coiled cord Type Dual Sided Monaural Mic Type Dynamic Noise Canceling Mic Sensitivity 65dBV Pa 1cm Mic Frequency Range 200Hz 6kHz Mic Impedance 150 Speaker Sensitivity 95dB SPL 3kHz 1mW Speaker Frequency Range 1kHz 10kHz Speaker Impedance 150 Weight 17oz not including cord Cord Length 1 75 ft retracted 9 ft extended Ordering Information HD 3A Dual Sided Headset with 21dB NRR Flexible Dy namic Boom Mic amp A4F Connector Catalog Number 63700 011 This specifications information is preliminary and is subject to change without notification Brand names mentioned are the property of their respective companies Contact Information Telex Communications Inc 12000 Portland Avenue South Burnsville Minnesota 55337 Telephone 877 863 4169 Fax 800 323 0498 Form Number 38109 211 Rev C Date December 2007
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