Specifications

ManualsBrandsAKG ManualsMicrophones and systemsHT 300

HEADPHONES

3736

HEADPHONES

HEARO 999 HEADPHONE AMPLIFIER/PROCESSOR

The Hearo 999 is a combination of a high-performance headphone amplifier and a sophisticated digi-

tal processor that brings the magic of surround sound to headphone listening. The Hearo 999 has Individual

Virtual Acoustics to match the sound to your own hearing and to make the sonic image more realistic. It also

features Dolby Digital and Pro Logic decoding, plus accurate room simulations (club, hall, and stadium) to

enhance normal stereo material. The Hearo 999 paired with a good set of headphones simulates the sound of

up to 6 loudspeakers.

HEARO PLAYER

The Hearo Player is a software plug-in for Windows Media Player 9 that gives you surround sound when lis-

tening to CDs or DVDs on your PC with headphones. The Hearo Player utilizes Lexicon's LOGIC7 circuitry that

simulates the performance of up to 8 loudspeakers along with AKG's IVA processing to maximize the sonic

imaging. The Hearo Player software is available for downloading at www.akg.com/hearoplayer as a free demo.

The full version is available for the same price as a single CD or DVD and will enhance your listening experi-

ence tremendously.

K 171 STUDIO

The K 171 Studio combines the benefits of a closed-back

design with the lightweight and comfort of supra-aural

headphones. The K 171 Studio is an excellent choice for

DJ and broadcast applications where no sound can bleed

from the headphones into live microphones. The closed-

back, loud and rugged design gives the K 171 a different

low-frequency character and maintains its comfort and

flexibility.

SPECIFICATIONS

YPE

: Closed-back, supra-aural

REQUENCY

ANGE

: 18 - 26,000 Hz

ENSITIVITY

: 94 dB SPL/mW

ATED

MPEDANCE

: 55 ohms

EIGHT

: 200 g (7.1 oz.)

K 271 STUDIO

The K 271 Studio combines the benefits of AKG’s circum-

aural design for extreme comfort and a closed-back design

for maximum isolation from ambient noise. Thanks to its

XXL transducers, the K 271 Studio sounds clean, smooth

and very rich. The K 271 Studio is the perfect choice for

any application where sonic bleed could cause problems

such as broadcast work. Another important feature of the

K 271 Studio is the addition of a switch in the headband

that mutes the audio just as soon as the headphones are

taken off.

SPECIFICATIONS

YPE

: Closed-back, supra-aural

REQUENCY

ANGE

: 16 - 28,000 Hz

ENSITIVITY

: 91 dB SPL/mW

ATED

MPEDANCE

: 55 ohms

EIGHT

: 240 g (8.5 oz.)

K 240DF PROFESSIONAL HEADPHONES

The K 240DF follows the criteria specified by the Institute

of Radio Technology (IRT) in Munich for a “diffuse

field” equalization curve that provides headphone

listeners with the sound pattern, characteristic of a

room with reflective, non-anechoic surfaces. Each

K 240DF is rigorously tested to assure strict

adherence to the IRT standards for frequency

response, channel separation, and sensitivity.

Hand-selected and matched components

are used to maintain extremely close tol-

erances. The K 240DF is a particularly

appropriate choice if a producer or engi-

neer must use headphones when mixing

or adding signal processing on material

that will be heard later through loudspeak-

ers. Self-adjusting headband and circumaural

(around the ear) pads ensure long term wearing

comfort without fatigue.

K 240M PROFESSIONAL HEADPHONES

AKG engineers continually strive to integrate

improvements in performance and durability while

carefully maintaining the K 240M’s familiar sonic

signature. The “integrated semi-open air” design

incorporates a highly accurate dynamic trans-

ducer, and an acoustically tuned venting

structure behind the element produces a

naturally open sound quality. The circum-

aural (around-the-ear) pads are designed

for hours of wearing comfort, while the

steel-cable, self-adjusting headband con-

struction and single-sided professional

quality audio interconnect ensure extend-

ed reliability in demanding professional

studio applications.

SPECIFICATIONS

YPE

: Semi-open, circumaural

REQUENCY

ANGE

: 15Hz

20kHz

ENSITIVITY

: 88dB/mW

ATED

MPEDANCE

: 600Ω

EIGHT

: 240g (8.5 oz.)

K 240 STUDIO

The K 240 Studio is a newly updated version of

AKG’s most successful headphone with

Varimotion™ technology and XXL transducers.

The K 240 Studio’s semi-open ear cups have

around-the-ear coupling to deliver solid bass,

accurate mids and crystal-clear highs. Thanks to

its lower impedance and improved sensitivity, it

can be used with low-output audio sources to

deliver its incredible sound. The detachable OFC

cable has gold-plated plugs for easy transporta-

tion and years of loss-free signal transfer.

SPECIFICATIONS

TYPE: Semiopen, circumaural

REQUENCY RANGE: 15–25,000 Hz

ENSITIVITY: 91 dB/mW

ATED IMPEDANCE: 55 Ω

EIGHT: 240 g (8.5 oz.)

. I

NPUT

OWER

: 200 mW

ISTORTION

: <1 %

ABLE

: single cord, 3 m (10 ft) long

TEREO

DAPTER

: 3.5/6.3 mm (1/8" to 1/4")

K 141 STUDIO

The K 141 Studio is the newest variation of an

AKG classic. The K 141 Studio has the new XXL

transducers with Varimotion™ technology to deliv-

er higher sensitivity, wide dynamic range and high-

er SPL, plus its lower impedance also allows it to

be used with computers and other devices with

low-power output. The gimbal-suspended earcups

and self-adjusting headband makes these comfort-

able to wear. The K 141 Studio also has a detach-

able 99.9% OFC input cable with gold-plated

connectors for easy transportation and service.

SPECIFICATIONS

TYPE: Semi-open, supra-aural

REQUENCY RANGE: 18–24,000 Hz

ENSITIVITY: 101 dB/mW

ATED IMPEDANCE: 600 Ω

EIGHT: 225 g (7.9 oz.)

. I

NPUT

OWER

: 200 mW

ISTORTION

: <1 %

ABLE

: single cord, 3 m (10 ft) long

TEREO

DAPTER

: 3.5/6.3 mm (1/8" to 1/4")

SPECIFICATIONS

YPE

: Semi-open, Circumaural

REQUENCY

ANGE

: 15Hz

20kHz

ENSITIVITY

: 88dB/mW

ATED

MPEDANCE

: 600Ω

EIGHT

: 240g (8.5 oz.)