Telex HD-3A Manuale utente
HD-3A
Dual-Sided Headset with 21dB NRR, Flexible Dynamic Boom Mic, & 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 150Ω dynamic elements and feature an
easily adjustable headband. The 6’ cord is coiled for tangle-free use.
Wiring Diagram
HD-3A Specications
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
150Ω
Speaker Sensitivity
95dB SPL @3kHz, 1mW
Speaker Frequency Range
1kHz - 10kHz
Speaker Impedance
150Ω
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, & A4F Connector
Catalog Number: 63700-011
This specications information is preliminary and is subject to change without notication.
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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