Beyerdynamic HS 400 Specification

APPLICATIONS

The HS 400 is a closed-back aviation headset. The headphone
features a very high reproduction precision and a balanced sound.
Another special feature is the wide frequency response of
10 - 20,000 Hz.
The soft, circumaural ear pads filled with viscoelastic foam and the
adjustable padded headband provide a high comfort. The micro­phone with adjustable gain can be optimally positioned with the
flexible gooseneck. The figure eight polar pattern ensures a high
gain before feedback and noise cancellation. The rotating micro­phone holder allows positioning the microphone on the right or left
hand side.
The connecting cable is single-sided. There are various versions with
different connecting cables (e.g. 1/4" (6.35 mm) and PJ-068 jack or
U-174/U jack). The connecting cable provides an audio box to
adjust the volume of the headphone and to connect a mobile
phone or music player (e.g. CD or MP3 player). If signals from the
intercom occur, the volume of the mobile phone or music player
can be reduced automatically. This function can also be switched
off.

FEATURES

• Closed headphone design

• Ear pads with extra soft leatherette cover and viscoelastic filling

• Audio box to connect mobile phones, iPhones or music players
(supplied with 3 connecting cables)

• Automatic volume reduction of phone or music player when
signals from the intercom occur (selectable function)

• Mono/Stereo selection switch

• Noise-compensated microphone with adjustable gain

• Integrated volume control (left/right separately adjustable)

• Ear caps in metallic silver design with metal bezels

• Rugged headband design made of spring steel with soft,
replaceable headband pad

• Light weight of approx. 325 g (without cable)

• Modular construction for easy servicing

• Five-year warranty / Made in Germany

HS 400

Aviation Headset

beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. [phone] / 617 - 0 | Fax [phone] / 617 - 204
[e-mail] | www.beyerdynamic.com

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E3/HS 400 (08.11)

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Audio box

Case

HS 400

beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. [phone] / 617 - 0 | Fax [phone] / 617 - 204
[e-mail] | www.beyerdynamic.com

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E3/HS 400 (08.11)

2 of 2

VERSIONS

HS 400 Signum Aviation headset with 1/4"

(6.35 mm) and

PJ-068 jack plugs. . . . . . . . . Order # 721.298

HS 400 Rotor Aviation headset with

U-174/U jack plug for

helicopters, coiled cable. . . . Order # 722.480

SUPPLIED ACCESSORIES

• Padded case

• Wind shield for the microphone

• Connecting cable for mobile phones

• Connecting cable for iPhone

• Connecting cable for portable music players such as
CD or MP3 players

Customised versions may include different accessories.

SPAR E PARTS

BN 59-53/D Headband pad, black,

leatherette. . . . . . . . . . . . . . Order # 990.681

EDT 300 GS Ear pads, gel-filled, black . . . Order # 900.799
EDT 600 SS Ear pads, leatherette, black,

viscoelastic . . . . . . . . . . . . . Order # 904.872

WS 20 sw Wind shield, black . . . . . . . . Order # 439.975

FREQUENCY RESPONSE & POLAR PATTERN

This frequency response curve (measuring tolerance ± 2.5 dB) and polar pattern correspond to a typical production sample for this microphone.

HS 400 microphone

Frequency response curve ±2.5 dB HS 400 (mic) 0 dB = 1 - 11 mV / 1 Pa at 1 kHz

TECHNICAL SPECIFICATIONS

Headphone

Transducer type . . . . . . . . . . . . . . . . Dynamic

Operating principle. . . . . . . . . . . . . . Closed

Frequency response . . . . . . . . . . . . . 10 - 20,000 Hz

Nominal impedance mono/stereo . . . 210 Ω / 270 Ω

Nominal SPL . . . . . . . . . . . . . . . . . . . 95 dB SPL

T.H.D.. . . . . . . . . . . . . . . . . . . . . . . . < 0.2%

Power handling capacity. . . . . . . . . . 100 mW

Sound coupling to ear . . . . . . . . . . . Circumaural

Ambient noise attenuation . . . . . . . . approx. 30 dB /

frequency-dependent

Nominal headband pressure . . . . . . . 8 N

Microphone

Transducer type . . . . . . . . . . . . . . . . Condenser (back electret)

Frequency response . . . . . . . . . . . . . 400 - 15,000 Hz

Polar pattern . . . . . . . . . . . . . . . . . . Figure eight

Output voltage at 1 kHz . . . . . . . . . . 1 - 11 mV / Pa, adjustable

Max. SPL . . . . . . . . . . . . . . . . . . . . . 120 dB

Nominal impedance . . . . . . . . . . . . . approx. 350 Ω

Current consumption . . . . . . . . . . . . approx. 6 - 18 mA

Supply voltage . . . . . . . . . . . . . . . . . typ. 16 V DC (8 - 16 V DC,

acc. to RTCA/DO 214)

General

Weight without cable / audio box. . . . approx. 325 g (0.72 lb)

HS 400 Signum

Cable . . . . . . . . . . . . . . . . . . . . . . . . approx. 1.80 m (70.87"),

straight cable
Connection

Headphone . . . . . . . . . . . . . . . . . . . 1/4" stereo jack plug

(6.35 mm)

Microphone . . . . . . . . . . . . . . . . . . . PJ-068 jack plug

Music player / mobile telephone . . . . Mini jack socket (3.5 mm)

HS 400 Rotor

Cable . . . . . . . . . . . . . . . . . . . . . . . . Coiled cable

Connection

Headphone, microphone . . . . . . . . . U-174/U jack plug

Music player / mobile telephone . . . . Mini jack socket (3.5 mm)