Beyerdynamic DT 990 Edition User Manual

TECHNICAL SPECIFICATIONS
Transducer type . . . . . . . . . . . . . . . . Dynamic
Operating principle. . . . . . . . . . . . . . Open
Frequency response . . . . . . . . . . . . . 5 - 35,000 Hz
Nominal impedance . . . . . . . . . . . . . 32 Ω / 250 Ω / 600 Ω
Nominal SPL . . . . . . . . . . . . . . . . . . 96 dB
T.H.D. . . . . . . . . . . . . . . . . . . . . . . . < 0.2%
Power handling capacity. . . . . . . . . . 100 mW
Sound coupling to the ear . . . . . . . . Circumaural
Nominal headband pressure. . . . . . . 2.8 N
Cable length and type . . . . . . . . . . . 3 m / straight cable
Connection . . . . . . . . . . . . . . . . . . . Gold-plated 1/8" mini stereo
jack plug (3.5 mm)
and 1/4" adapter (6.35 mm)
Weight without cable. . . . . . . . . . . . 290 g
(all specifications according to EN 60 268-7)
SPARE PARTS AND OPTIONAL ACCESSORIES
EDT 990 V Ear pads, velours,
circumaural, silver-grey . . . . . . Order # 926.679
BN 59-65/A Headband pad, leatherette,
black . . . . . . . . . . . . . . . . . . . . Order # 579.823
Straight extension cable,
5 m long, 1/4" jack (6.35 mm) -
1/4" jack (6.35 mm) . . . . . . . . Order # 565.385
FEATURES
• Open back design
• Strong bass and treble
• Robust spring steel headband
• Single-sided cable
• Soft headband pad
• Gold-plated 1/8" mini stereo jack plug (3.5 mm)
and 1/4" adapter (6.35 mm)
DESCRIPTION
The DT 990 is an open dynamic headphone of exceptional quality
and suitable for all music styles; whether you are into pop, classical
or jazz, the DT 990’s will deliver the true sound as it was originally
intended to. The reduced weight of the diaphragm and moving
coil result in a similar pulse characteristic as electrostatic headphones,
and in combination with a carefully tailored frequency response
provide a natural and balanced sound. Soft ear and headband
pads together with a single-sided cable ensure listening comfort
during extended periods of use.
The DT 990 is still manufactured in Germany providing an excellent
quality.
DT 990 Edition
Dynamic Headphone
beyerdynamic GmbH & Co. KG
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. +49 (0) 71 31 / 617 - 0 | Fax +49 (0) 71 31 / 617 - 204
info@beyerdynamic.de | www.beyerdynamic.com
For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E3 / DT 990 (02.11)
1 of 1
VERSIONS
DT 990 32 Ω, for portable players . . . . . . . Order # 483.958
DT 990 250 Ω, for home hi-fi systems . . . . Order # 481.807
DT 990 600 Ω, for high end systems . . . . . Order # 483.966

Beyerdynamic DT 990 Edition Specifications

General

Impedance	250 Ω
Ear coupling	Circumaural
Headphone frequency	5 - 35000 Hz
Headphone sensitivity	96 dB
Total Harmonic Distortion (THD)	0.2 %
Cable length	3 m
Product color	Black, Silver
Recommended usage	Music
Connectivity technology	Wired
Microphone type	Not available

Weight and Dimensions

Weight	290 g

Summary

Features

Product Description

Technical Specifications

Transducer Type

Specifies the type of transducer used in the headphones.

Operating Principle

Details the principle of operation for the headphones.

Frequency Response

Defines the range of audible frequencies the headphones reproduce.

Nominal Impedance

Indicates the electrical impedance of the headphones in Ohms.

Nominal SPL

Specifies the nominal Sound Pressure Level in decibels.

T.H.D.

Total Harmonic Distortion percentage.

Power Handling Capacity

Maximum power the headphones can handle.

Sound Coupling to the Ear

Describes how the headphone cups fit around the ear.

Nominal Headband Pressure

Specifies the pressure exerted by the headband.

Cable Length and Type

Details the length and configuration of the headphone cable.

Connection

Describes the type of connector and adapter included.

Weight Without Cable

The weight of the headphones without the attached cable.

Versions

DT 990 32 Ohm

Version for portable players with 32 Ohm impedance.

DT 990 250 Ohm

Version for home hi-fi systems with 250 Ohm impedance.

DT 990 600 Ohm

Version for high-end systems with 600 Ohm impedance.

Spare Parts and Optional Accessories

EDT 990 V Ear Pads

Velour, circumaural ear pads in silver-grey.

BN 59-65/A Headband Pad

Leatherette headband pad in black.

Straight Extension Cable

5m long cable with 1/4" jack connectors.