Difference between revisions of "Sennheiser HDA300 specifications"

Latest revision as of 13:36, 21 November 2023

Sennheiser HDA300

The HDA 300 is a pair of closed dynamic headphones designed for use with audiometers.

Specification	Value
Connector	2 Mono-Jacks; Green: -L, yellow: +L, red: +R, blue: -R
Frequency response (Headphones)	20 Hz - 20,000 Hz
Characteristic SPL	117dB at 1kHz, 0.5V
Contact pressure	8.8N ± 0.5N
Ear coupling	circumaural
Connection cable	approx. 2.2m
Transducer principle	dynamic, closed
Weight	incl. cable: 490 g
Nominal impedance	23 Ohm
Load rating	500 mW
Max. Input voltage	3.5 V, < 10 min
Compliance	IEC 60645-1, IEC 60645-2, ANSI S3.6-2010

@@ Line 1: / Line 1: @@
 ==Description==
-The HDA 300 is a pair of closed dynamic headphones designed for use with audiometers. It is used in aural-acoustical analysis and measurements for ENT doctors, educational facilities and research & health centers. The HDA 300 sound profile is based on the well known HDA 200 audiometric reference headphones, which is the standard for high frequency measurements in Audiometry since over 20 years, combined and enriched by the latest standards in terms of materials and design.
+[[File:Sennheiser_HDA300.png|thumb|Sennheiser HDA300]]
-*High passive ambient noise attenuation – patients hear only what they are supposed to hear – no disturbing outside sounds
+The HDA 300 is a pair of closed dynamic headphones designed for use with audiometers.
-*Equipped with two mono plugs for immediate use: time saving for customers during set up, no special built necessary
+*High passive ambient noise attenuation
-*Soft, replaceable ear pads & two padded headbands for increased comfort and perfect fit also for long testing periods
+*Equipped with two mono plugs
-*Single-sided cable: no tangling around with the cable when placed on patient head
+*Soft, replaceable ear pads
+*Single-sided cable
 {| class="wikitable"
@@ Line 42: / Line 43: @@
 | Max. Input voltage
 | 3.5 V, < 10 min
+|-
+|Compliance
+|IEC 60645-1, IEC 60645-2, ANSI S3.6-2010
 |}