hearo family - Cieri - HEARO...nes at home is easy because each HEARO Family headphone system a incorporates surround decode - yor don'u t nee andy other special equipment. Jus the

hearo family

A K G

THE H E A R O FAMILY Innovative surround technology brings theater sound to your home

T h e H E A R O Fami ly w i re less h e a d p h o n e s y s t e m s f r o m A K G are a conven ien t and elegan t a l ternat ive t o t he usual loudspeaker -b a s e d su r round sys tems .

En joy ing su r round s o u n d t h rough h e a d p h o nes at h o m e is easy because each HEARO Fami ly h e a d p h o n e s y s t e m incorpora tes a su r round d e c o d e r - you d o n ' t need any o ther spec ia l e q u i p m e n t . Jus t connec t t he H E A R O Family s y s t e m to any stereo source inc lud ing TV sets, hi-f i or v ideo sys tems , DVD players, g a m e conso les , or even a PC a n d en joy a fabu lous sound ing su r round s y s t e m w i th up to eight v i r tual l oudspeakers in you r o w n h o m e w i t hou t the c lut ter of a r o o m full of loudspeakers . The beauty of the

sys tem is that the s ignals are t ransmi t ted by a radio f requenc ies , sav ing you the t roub le of w i r ing a c o m p l e x loudspeaker se tup. Radio s ignals penet ra te wal ls a n d cei l ings so you can move a round you house or garden whi le l is tening.

The HEARO 999 A U D I O S P H E R E II a n d HEARO 888 DIGITAL use digi tal t r ansmis s ion for o p t i m u m signal qual i ty and an even w ider d y n a m i c range.

The XXL speaker capsu le us ing the pa ten ted Va r imo t i on d i a p h r a g m m a d e in V ienna under st r ic test qua l i ty cont ro l and del ivers t h e s a m e p o w e r f u l s u r r o u n d s o u n d as you w o u l d get in a theater. IVA process ing

deve loped by A K G br ings 3 -D sound t o h e a d p h o n e s , equ i va len t t o l i s ten ing t o loudspeakers d is t r ibu ted a round the r o o m . The result is a d ramat i c sense of envelo ment .

The latest d e v e l o p m e n t in t he line is the HEARO PLAYER, a so f tware p lug- in for the W i n d o w s M e d i a ® Player 9 Ser ies that uses the latest c o m p u t e r techno log ies . HEARO PLAYER w o r k s w i th all s o u n d cards and w i th any h e a d p h o n e so you can use it on your PC at h o m e or on a no tebook c o m p u t e r w h e n t ravel ing. Test it at w w w . a k g . c o m / h e a r o -p l a y e r and f ind ou t w h y A K G has been a leading aud io manufac tu re r for more than fifty years.

The HEARO Family

H E A R O 9 9 9 A U D I O S P H E R E I I

• Dolby Digital and Dolby Surround Pro-Logic decoders, IVA, and VMAx.

• Digital radio link with mit digital antenna diversity receiver and external swiveling transmitting antenna.

• Transmitter with integrated amplifier for use with hardwired headphones.

• Six selectable ear-matching curves.

• Hi-fi headphones with XXL speakers.

• Digital inputs. • Balance control on head

phones.

H E A R O 9 9 9 A U D I O S P H E R E D I G I T A L P R O C E S S O R • Headphone amplifier with

D/A converter and room simulator.


• Six selectable ear-matching curves.

• Digital inputs.

H E A R O 8 8 8 D I G I T A L Available from spring 2004

• Dolby Surround Pro-Logic and LOGIC7 decoders, IVA.

• Digital radio link with digital antenna diversity receiver.

• Hi-fi headphones with XXL speakers.

• Three selectable sound presets.

• Memory card extension for loading personal ear matching curves.

• Balance control on headphones.

• Approx. 5 hours battery life; 2-hour quick charger.

H E A R O 7 7 7 Q U A D R A D E L U X E

• Dolby Surround Pro-Logic and LOGIC7 decoders, IVA.

• Three-channel PLL synthesizer for reliable reception.

• Auto-tuning function. • AGC (Automatic Gain

Control). • Hi-fi headphones with

XXL speakers. • Approx. 20 hours battery

life. • 1 0 0 m (330 ft.) max. range.

HEARo p r r ^

H E A R O P L A Y E R

• Software plug-in for Windows Media® Player 9 Series.

• LOGIC7 decoder and IVA. • Five selectable sound

presets. • Automatic or manual IVA

processing level adjustment to available computing power.

• Available for downloading from www.akg.com/hearo-player as FREE demo or moderately priced full version.

http://www.akg.com/hearo-

http://www.akg.com/hearo-

"...a perfect success -a complete, portable home theater that is worth every Euro."

m "future-oriented, cost-efficient alternative to loudspeaker systems..."

MM

AKG Hearo 777 Oaudra Deluxe

MM Upper class * m P r i c e / p e r f o r m a n c e : gj g o o d t o e x c e l l e n t J L s

" ...IVA LOGIC7' generates sound-scapes with eight virtual sound sources from any mono or stereo program."

1 2 / 0 1 "Ingenious."

I L I . i I .

j \ I] Number 12/2001

Price/performance: excellent

^

2 „ , , „ , M \ i : v

" . . .generates a brill iant 3-D sound - makes you feel as if you were at the movies or in a concer t hal l ."

1 5 . - 2 8 . 1 2 . 0 1

''Lean back

and enjoy...

first-class."

T V TODAY

"Powerful h o m e

t h e a t e r s o u n d . . . "

T E S T

2 / 0 2 a n i o i n • T E S T 1 / 0 3

"...delivered a powerful sound with fascinating 3-D sound effects..."

TEST Price/performance:

excellent

THE FASCINATION OF SURROUND From the phonograph to the DVD - the story of 3-D sound

1881: The beginning Four years after Thomas A. Edison had his

-Phonograph patented, Clement Adler in Paris scovers the principle of stereophony by

chance. Actual stereo recording and reproduction, however, are still decades away.

1931: The discovery of stereo Alan Blumlein writes a detailed thesis about the theory of stereo and patents his stereo technique. Stereo recordings, however, are not yet available to the general public.

1942: Stereo recording Before the first stereo records are released, Helmut Kruger f rom Germany successfully makes stereo recordings on magnetic tape.

1965: Dolby - the f i rst noise reduct ion sys tem Dolby Systems launches the first noise reduction system that dramatically enhances the quality of magnetic tape recordings.

1972: Quadraphonic, the pre-cursor of surround ^•adraphon ic signals for four loudspeakers

v_ anged in a square are used for commercial recordings for the first t ime. This direct precursor

BAP 1000 and K 1000 Sound engineers worldwide prefer the BAP 1000 audio processor and K 1000 high-end headphones for mixing with headphones.

of today's surround technology never sells because it is too expensive and prerecorded program material is rare.

1985: Surround sound for the movies After the digital age had finally begun in the music industry with the introduction of the CD in 1981, Dolby Laboratories develops the Spectral Recording System for movie theaters that provides a kind of three-dimensional imaging that had never been heard before.

1990: Surround sound at home As consumer electronics and high-performance microprocessors develop rapidly, Dolby Laboratories presents the first five-channel surround processor.

1992: The revolut ion - IVA (Individual Virtual Acoust ics) processing With the BAP 1000 sound processor, AKG first presented the specifically developed, patented IVA system for the spatial imaging of sound sources through headphones.

1995: Surround sound via headphones AKG launches the world's first surround headphones, the K 290 Surround.

K 290 Surround A special arrangement of two speakers in each earphone allows the K 290 Surround to generate authentic .surround sound without electronic circuitry.

1997: The t r iumph of the DVD The DVD is unveiled as the latest digital audio/video medium. At the same time, the current digital 5.1 and 7.1 surround formats are developed. Lexicon launches the first LOGIC7 decoder.

1998: The f i rst wireless sur round headphones The HEARO 777 from AKG is the first wireless headphone system with an integrated Dolby Surround Pro-Logic decoder and IVA processor.

1999: Digital sur round via headphones The audio DVD 1.0 format ensures worldwide compatibility of DVDs. At the same time, AKG launches the HEARO 888 TITAN, the first Dolby Surround Pro-Logic headphone system with a digital radio link, and the HEARO 999 AUDIO-SPHERE, the first Dolby Digital headphone system (also with a digital radio link).

2001: First LOGIC7 headphone system The HEARO 777 QUADRA from AKG is the first wireless headphone system that incorporates Dolby Surround Pro-Logic and a LOGIC7 decoder as well.

2003: The revolut ion goes on . . .

HEARO 777 The first HEARO Family model revolutionized the headphone market. To this day, AKG has been the world's leading manufacturer of wireless surround headphones.

nn I D O L B Y S U R R O U N D ^ D O L B Y

P R O • L O G I C

DOLBY SURROUND PRO-LOGIC Unlike Dolby Digital where all channels are recorded and read separately, the Dolby Surround Pro-Logic format encodes and decodes surround signals in a "piggyback" matrixed fashion on the two stereo tracks. In addition, typical Dolby Surround Pro-Logic systems don't have a separate sub-woofer channel.

Movie soundtracks are usually mixed down to four channels. Left and Right are the same two channels used for hi-fi stereo. The third channel is the Center channel projected from above or below the video screen. The fourth channel is called "surround" or "rear" and is usually projected by two loudspeakers placed behind the listeners. These four channels are encoded by a special circuit and recorded in "piggyback" fashion on the two stereo tracks. This allows the signal to be reproduced in mono, stereo, or (using a decoder) through four separate channels. For surround reproduction, the signal needs to be decoded. This is the job of the Dolby Surround decoder. Therefore, many types of media such as VHS video or radio, and many DVDs, too, include Dolby Pro-Logic Surround signals.

D I G I T A L

DOLBY DIGITAL The digital multi-channel format of Dolby Laboratories, Inc. used in advanced movie theater equipment is the most widespread digital surround standard for DVDs, laser discs, and digital TV. The distinguishing feature of Dolby Digital is that all tracks (five audio tracks plus one subwoofer track) are stored separately in digital form. Each loudspeaker is fed specific audio information for optimum spatial imaging. The surround signal is made up as follows:

1+2: Left and right front channels These channels reproduce the main ingredients of the program including music and ambience. 3: Center channel The center channel is reserved mainly for voices. 4+5: Left and right rear surround channels These channels reproduce sounds intended to originate behind the listening position. 6: Subwoofer channel The subwoofer only reproduces low frequencies at a level high enough to make you feel the sonic fundamentals.

L O G I C 7

L0GIC7 Until now, this latest development by the innovative engineers at LEXICON was only used in high-end processors for high-quality home theater systems. Now, the unique advantages of LOGIC7 decoding are available for headphones for the first time.

The LOGIC7 decoder automatically identifies the input signal as mono, stereo, or surround encoded and processes the signals appropriately.

The LOGIC7 decoder uses the localization cues contained in stereo signals to generate a 3-D sound that conveys to the listener a sense of envelopment in the sound rather than standing in front of a pair of loudspeakers. Surround encoded signals are reproduced exactly as defined in the mix.

Along with the standard 5.1 surround format, LOGIC7 provides left and right side surround channels, for a total of seven loudspeaker channels plus one subwoo channel. In addition, another surround center channel is added in the headphone mode. In conjunction with IVA processing, LOGIC7 provides its full performance level with eight virtual loudspeakers. The result is far more natural and accurate imaging.

Ava i lab le in :

• HEARO 777 Q U A D R A DELUXE • HEARO 888 DIGITAL • HEARO 999 AUDIOSPHERE II

Example of a Dolby Surround Pro-Logic setup The surround or rear channel is usually projected by two loudspeakers.

Ava i lab le in :

• HEARO 999 AUDIOSPHERE II

Example of a Dolby Digital setup The subwoofer position is uncritical because low frequencies cannot be localized due to their long wavelengths.

Ava i lab le in :

• HEARO 777 Q U A D R A DELUXE • HEARO 888 DIGITAL

Example of a LOGIC7 setup The center surround channel is available on headphones only.

INDIVIDUAL VIRTUAL ACOUSTICS VMA: IVA (Individual Virtual Acoustics) processing Since we only have two ears, humans localize sound sources in our environment with "binaural hearing". Sound waves from a given source arrive at one ear earlier than they do at the other, and they "look" different, too. Fig. A: Amplitude and phase shifts allow us to localize a sound source in space (three-dimensional perception of sound). Fig. B: Headphones usually eliminate these important ampli tude and phase shifts. Sound sources are perceived as being localized inside the head rather than in the room. Fig. C: IVA processing developed by AKG adds to a stereo signal the amplitude and phase shifts that are necessary to create the same sense of natural sound as in binaural hearing. In short, IVA processing provides a perfectly natural stereo and multi-channel theater sound found in modern movie theaters through headphones at home.

a i lab le in :

• HEARO 777 Q U A D R A DELUXE • HEARO 888 DIGITAL • HEARO 999 AUDIOSPHERE II

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The benef i ts of IVA The instrument does not seem to play inside the head but in the room, as in a natural listening situation.

Ear matching curves Every person perceives sound in a different way. A sound first arrives at the pinnae on your ears that direct the sound waves into the auditory tract. Depending on the shape and size of the pinnae, ears and head, some frequencies are boosted and others attenuated. Therefore, every person has a different subjective impression of the same sound.

When you use headphones, most of the sound is "channeled" right into your auditory tract without first being modified by the pinnae and head. Therefore, what you hear may sound unnatural.

AKG performed numerous measurements to determine the most frequent types of subjective modifications and created electronic models (ear matching curves) of these changes. You can select from various ear matching curves to find the setting that sounds the most natural to you. This technology in conjunction with IVA processing provides an incomparably natural, spacious sound.

VMAx Some listening rooms don't permit the required number of loudspeakers to be set up or placed at the correct positions for true surround sound. In most cases, however, it is easy to place a stereo pair at the preferred positions.

VMAx simulates both the center channel and a rear effects channel to generate accurate surround sound from only two loudspeakers.

VMAx introduces specific phase shifts that cause the surround information to be appropriately delayed and reflected by the wall behind the listener to simulate a separate loudspeaker.

Ava i lab le in:

• HEARO 999 AUDIOSPHERE II Ava i lab le in : • HEARO 888 DIGITAL (op t iona l

m e m o r y ca rd ex tens ion ) • HEARO 999 AUDIOSPHERE II

The benefi ts of ear matching curves The benefi ts of VMAx Selectable ear matching curves model the A simulated center channel and reflected way your pinnae and head modify the in- surround cues create the impression of a coming sound. real surround system.

H E A R O 9 9 9 A U D I O S P H E R E Fully digital wireless surround headphone system with Dolby Digital decoder

(


• Digital radio link using digital antenna diversity receiver and external swiveling transmitting antenna.

• Six selectable ear matching curves. • Hi-fi headphones with XXL speakers. • Digital inputs. • Balance control on headphones. • Approx. 5 hours battery life; 2-hour quick

charging system. • Max. range: 50 m (165 ft.). • Integrated amplifier for hardwire headphones.

The original HEARO 999 AUDIOSPHERE was praised enthusiast ical ly by the audio press ("... wor ld 's best headphones. . . " , FHM 1/2000), and the new version cal led the HEARO 999 AUDIOSPHERE II has been further improved.

The headphones use XXL speakers wi th patented Varimot ion d iaphragms (Austrian Patent no. 403 .751 , US Patent no. 6,185,809) for a d rama t i ca l l y i m p r o v e d s o u n d wi th even higher accuracy at high vo lume levels. The result is a clearer high and mid range along wi th more powerful bass.

Also improved was the d ig i ta l UHF rad io l ink. A sw ive l i ng ex te rna l an tenna on the transmit ter and a digital antenna diversity receiver maximize signal qual i ty and minimize dropouts . All signal processing is per formed in the dig i tal domain to maintain the full dynamic range from the input to your ears. The sound quali ty of the headphones is equivalent to that of a h igh-end hardwired mode l . The sel f -adjust ing h e a d b a n d m a d e of genu ine lea ther looks great and is highly comfor tab le as it gently and automat ical ly conforms to every head.

M O D E S U R R O U N D EARS

IVA Natural, spat ial (binaural) sound wi th headphones.

Di rec t

Stereo mode.

V M A x VMAx process ing del ivers surround sound from a single pair of stereo loudspeakers.

1 Auto The decoder automat ical ly selects the required processing mode: DOLBY DIGITAL for d ig i ta l input signals Dolby Surround PRO LOGIC for analog input signals

Off The surround decoder is deact ivated and you are l istening to pure stereo. In stereo mode, you can also select one of three room s imu la t ions : C L U B , HALL, and STADIUM.

Every person perceives sound in a different way.

You can select f rom one standard sett ing and six different ear matching curves to f ind the sett ing that sounds the most natural to you.

I

DIGITAL TRANSMITTER 864 MHz FREQ VOLUME INPUT • • • HKI >—\ inn AL

i va PHONES

*\AM"C DiRfC*

Il II \ M U SPEAKER • • •

SPEAKER Stftf lm I STEREO t. — J H h A R 0 9 9 9 A U D l O S P H b R L I I

PHONES INPUT

NORM ^ MUSIC

' è

SOUND

H e a d p h o n e amp l i f i e r for use with hardwired headphones.

1 D ig i ta l :

Act ivates the digital audio input.

• Dynamic: Dolby Digital provides the full dynamic range you 'd hear in a real theater. The DYNAMIC swi tch lets you reduce the dynamic range to that of standard TV sets or VCRs.

Whether you are wa tch ing a v ideo, l istening to music, or looking for perfect voice reproduct ion, SOUND al lows you to match the t imbre of the reproduced sound to the type of programming. Each of the four basic modes NORM, MUSIC, VOICE, and MOVIE provides three t imbre set t ings.

Ult imate accuracy and balance control The sound quality is equivalent to that of high quality hardwired headphones. The balance control on the headset allows you to adjust the volume ratio between the left and right channels.

Minimum-noise digital radio link Digital transmission ensures virtually noise-free reception, a digital antenna diversity receiver and swiveling external transmitting antenna provide highly reliable reception and minimize dropouts.

HEARO 999 AUDIOSPHERE DIGITAL PROCESSOR Headphone amplif ier and surround processor for use wi th hardwired headphones (without radio transmit ter and headphones).

H E A R O 8 8 8 D I G I T A L Wireless eight-channel surround headphone system with digital radio link

i t i

Dolby Surround Pro-Logic and L0GIC7 surround decoders, IVA. Digital radio link with digital antenna diversity receiver. Hi-fi headphones with XXL speakers. Digital input. Three selectable sound presets: Norm/Music/Movie. Memory card expansion slot for loading personal ear matching curves. Balance control on headphones. Approx. 5 hours battery life; 2-hour quick charging system. 3-in-l transmitter doubles as storage cradle and charger for headphones. Max. range: 50 m (165 ft.).

T h e s u c c e s s o r o f t h e H E A R O 8 8 8 T ITAN t a k e s a n e w a p p r o a c h t o b o t h s t y l i ng a n d t e c h n o l o g y . W h i l e it m a i n t a i n s t h e D o l b y S u r r o u n d P r o - L o g i c d e c o d e r a n d A K G IVA p r o c e s s i n g , t h e d i g i t a l U H F r a d i o l i n k n o w u s e s a d ig i t a l a n t e n n a d i v e r s i t y r ece i ve r f o r even h ighe r r e l i a b i l i t y o f r e c e p t i o n . In a d d i t i o n , t h e s y s t e m p r o v i d e s t h ree n e w s o u n d p r e s e t s .

T h e h e a d p h o n e s use X X L s p e a k e r s w i t h p a t e n t e d V a r i m o t i o n d i a p h r a g m s t o de l i ve r an e v e n m o r e a c c u r a t e s o u n d at h i g h v o l u m e leve ls . T h e s e s p e a k e r s in c o n j u n c t i o n w i t h t h e d ig i t a l r ad i o l ink p r o v i d e t h e s a m e p e r f o r m a n c e as h i g h - e n d h a r d w i r e d h e a d p h o n e s . A b a l a n c e c o n t r o l o n t h e h e a d p h o n e s let y o u f i ne t u n e t h e s t e r e o or s u r r o u n d s o u n d .

O t h e r n e w f e a t u r e s i n c l u d e a L O G I C 7 d e c o d e r s i m u l a t i n g up t o e i gh t l o u d s p e a k e r s f o r s u r r o u n d r e p r o d u c t i o n , a n d a d i g i t a l i n p u t f o r o p t i m u m u t i l i za t i on of t h e f u l l d y n a m i c r a n g e o f d ig i t a l m e d i a . A p r o v i s i o n fo r c o n n e c t i n g a m e m o r y c a r d a l l o w s y o u t o l o a d p e r s o n a l e a r m a t c h i n g c u r v e s f o r o p t i m a l l y m a t c h i n g t h e s o u n d t o t h e c h a r a c t e r i s t i cs of y o u r ea rs .

Available from spring 2004.

PRO LOGIC

FREQ 2

STEREO

FREQ 3

MOVIE M U S I C

C H A R G E n i l I DOLBY SURROUNO] nr. fM*À

P R O • L O G I C wmm m L O G I C ?

DIGITAL TRANSMITTER 864 MHz

I V /

DIGITAL

C A R D

LEVEL

MODE

| FREQ | INPUT

CARD

M O D E

IVA Pro Log i c : The decoder will generate up to four virtual loudspeaker channels f rom Pro-Logic input signals.

IVA L 0 G I C 7 : Automat ic decoder for mono, stereo, Dolby Surround Pro-Logic, L0GIC7, and all current surround formats. Simulates up to eight loudspeaker channels.

IVA STEREO: Loudspeaker s imulat ion for natural, spac ious stereo sound .

STEREO: Convent ional stereo sound .

FREQ

Short push selects one of three carrier f requencies, long push analog or digi tal input.

DISPLAY

Switches the display backl ight ing on and off.

ON Switches the HEARO 888 DIGITAL on and off. CHARGE

arging status light. LEVEL

Input signal level meter.

SOUND PRESETS NORM, MOVIE, MUSIC, plus CARD for ear matching curves on memory card .

The Varimotion XXL t ransducers deliver improved accu racy at h igh vo lume levels. The result is a cleaner high end and mid range wi th more powerful bass. C o m p u t e r - o p t i m i z e d manufac tu r ing processes safeguard the consistent ly excel lent sound of AKG HEARO Family surround headphones.

A l w a y s ready The inc luded h igh-capac i ty rechargeable batteries wil l power the headphone for about f ive hours and the qu ick -charging funct ion energizes them for use in only two hours.

H e a d p h o n e s w i t h excep t i ona l l y a c c u r a t e s o u n d

The XXL speakers with patented Varimot ion d iaphragms work together with the digital radio link to provide a sound that is equivalent to that of h igh-end hardwired headphones.

Ba lance c o n t r o l on the h e a d p h o n e s

The balance control on the headphones enables you to manually adjust the vo l ume between the left and right channels for a consistent sound.

H E A R O 7 7 7 Q U A D R A D E L U X E Wireless eight-channel surround headphone system

• Dolby Surround Pro-Logic and L0GIC7 surround decoders, IVA.

• Three-channel PLL synthesizer for reliable reception. • Auto-tuning function. • AGC (Automatic Gain Control). • Hi-fi headphones with XXL speakers. • Approx. 20 hours battery life. • 3-in-1 transmitter doubles as charger and storage

cradle for the headphones. • 100 m (330 ft.) max. range.

The HEARO 777 QUADRA DELUXE establ ishes a new standard in styl ing and technology. The classic shape of the transmit ter is funct ional and fits in harmoniously wi th any living room. The batter ies inside the headphones wi th dedicated charging contac ts will be charged automat ical ly when you place the headphones on the transmitter/charger. The large headphones provide excel lent wear ing comfor t and the XXL speakers deliver pe r f ec t h i - f i qua l i t y s o u n d .

The HEARO 777 QUADRA DELUXE is a comple te , se l f -conta ined surround sys tem. A Do lby S u r r o u n d P r o - L o g i c decode r , patented IVA p rocess ing f rom AKG for incomparably authent ic binaural sound , and an exclusive LOGIC7 d e c o d e r for simulat ing up to eight surround loudspeakers make the HEARO 777 QUADRA DELUXE a high quality, compac t al ternative to expensive, bulky surround loudspeaker systems.

Finally, the radio link provides perfect sound and mobi l i ty wi th in a range of up to 100 m (330 f t . ) . Battery life is up to 20 hou rs .

H E A R O P L A Y E R Virtual eight-channel software plug-in for Windows Media® Player 9 Series

£3 I I U I / I L .

HEADPHONES SURROUND CENTER NORM • J Q H E L

• Software plug-in for Windows Media® Player 9 Series

• L0GIC7 decoder and IVA. • Five selectable sound presets. • Automatic or manual IVA processing level adjustment

to available computing power. • Compatible with all sound cards and headphones

(AKG K101, AKG K 301 XTRA recommended). • Intuitive, high-end equipment type user interface. • For system requirements refer to Specifications.

Looking for surround sound from headphones from your PC without expensive peripherals or complicated modifications? The answer is the AKG HEARO PLAYER based on the same software used in the highly praised HEARO Family wireless surround headphone systems. The secret behind this miracle are two technologies: IVA processing developed by AKG provides a sound that does not play inside the head as it would with straight headphone reproduction, but actually seems to come from loudspeakers placed around your listening room. The LOGIC7 decoder automatically identifies the input signal format, monitors it constantly, and simulates up to eight loudspeakers distributed around the room. It generates this kind of 3-D sound from almost every input signal format from stereo to the latest surround standard.

To avoid overburdening your PC with its need for processing power, the IVA surround processing level can be adjusted manually or automatically to optimize the processing power of your computer. Selectable presets such as MOVIE and JAZZ provide timbres for a more realistic sound. The HEARO PLAYER is a real bargain for those who are looking for a way to enjoy surround sound from their PC at home or notebook computer when traveling but do not want to invest in extra hardware or throw away their favorite headphones.

Available for downloading from www.akg.com/hearoplayer as a free demo or as the moderately-priced full version.

http://www.akg.com/hearoplayer

Specifications HEARO 999 A U D I O S P H E R E II

Headphones: semi-open, dynamic design

Max. sound pressure level: approx. 104 dB SPL

Audio bandwidth : 18 Hz to 24 kHz

Carrier frequency: 864 MHz (LPD band)

RF output: 10 mW ERP (Equivalent Radiated Power)

THD: < 1 %

Range: approx. 50 m (165 ft.)*

Transmission system: minimum-delay ACS encoding

and digital antenna diversity receiver

Transmit ter AD/DA converters:

Receiver D/A converter:

20-bit, 44.1/48 kHz

18-bit, 44.1/48 kHz

Audio inputs: analog: RCA, digital: 1 x optical, 1 x coaxial (selectable)

Audio outputs: L/R RCA jacks, 1 x 1/4" TRS jack for hardwire headphones

Digital signal processing: 24-bit. 150 MIPS

Batter ies: 2 x 1.2 V, 600 mAh AAA size NiMh rechargeable batteries

Battery l i fe: approx. 5 hours (NiMh batteries!

Weight: headphones: 350 g (12.4 oz.); transmitter: 590 g (1.3 lbs.)

Transmitter power supply: 12VDC/800 mAAC adapter

Connecting cables suppl ied: RCA to RCA stereo cable, optical digital cable, RCA to mini jack stereo cable (1.5 m / 5 ft. long)

Stereo adapter: mini to 1/4"jack

Addi t ional funct ions: VMAx; Dolby Surround Pro-Logic and Dolby Digital decoders; digital radio link using digital antenna diversity receiver;

ear matching curves; external swiveling transmitting antenna; IVA processing

HEARO 999 A U D I O S P H E R E DIGITAL PROCESSOR

Audio bandwidth : entire audible frequency range

AD/DA converters: 20-bit. 44.1/48 kHz

Audio inputs: analog: RCA, digital: 1 x optical, 1 x coaxial (selectable)

Audio outputs: L/R RCA jacks, 1 x 1/4" TRS jack for hardwire headphones

Digital s ignal processing: 24-bit, 150 MIPS

Weight: 550 g (1.2 lbs.)


Connecting cables: RCA to RCA stereo cable, RCA to mini jack stereo cable, optical digital cable (1.5 m / 5 ft. long)


Addi t ional funct ions: Dolby Surround Pro-Logic and Dolby Digital decoders; IVA processing; VMAx; ear matching curves

HEARO 888 DIGITAL



Audio bandwidth: 18 Hz to 24 kHz



THD: < 1 %


Transmission system: minimum-delay ACS encoding and digital antenna diversity receiver

Transmitter AD/DA converters:

Receiver D/A converter:

24-bit, 44.1 kHz

18-bit, 44.1 kHz

Audio inputs: analog: CINCH, digital: 1x optical, 1x coaxial

Digital s ignal processing: 24-bit, 200 MIPS

Batteries: 2 x 1.2 V, 600 mAh AAA size NiMh rechargeable batteries

Battery l i fe: approx. 5 hours (NiMh batteries)



Connecting cables suppl ied: RCA to RCA stereo cable, coaxial digital cable, RCA to mini jack stereo cable (1.5 m / 5 ft. long)


Addit ional funct ions: digital radio link using digital antenna diversity receiver: Dolby Surround Pro-Logic and Dolby Digital decoders

IVA processing; memory card extension (for loading personal ear matching curves); sound presets

Available from spring 2004

HEARO PLAYER ^ * f ^

FUNCTIONS L0GIC7 decoder, IVA processing, 5 sound presets, automatic IVA processing level adjustment to computing power

SYSTEM REQUIREMENTS

Operating system: Microsoft Windows® 98 Second Edition, Windows 2000, Windows Millennium Edition, Windows XP Home Edition,

Windows XP Professional

Media player: Windows Media® Player 9 Series

Processor: 450 MHz processor or better, e.g., Intel Pentium or Advanced Micro Devices (AMD) processor 1600 MHz processor or better recommended

RAM: 128 MB Ram min., 256 MB RAM recommended

Sound board: 16-bit sound board or better

Graphics board and monitor: Super VGA (800 x 600) or better

Audio output device: headphones - AKG K 101, K 301 XTRA recommended

Download: www.akg.com/hearoplayer

HEARO 777 Q U A D R A DELUXE



Audio bandwidth : 18 Hz to 24 kHz



THD: < 1 %


Batteries: 2 x 1.2 V, 600 mAh AAA size NiMh rechargeable batteries

Battery l i fe: approx. 20 hours (NiMh batteries)



Connecting cables suppl ied: RCA to RCA stereo cable, RCA to mini jack stereo cable (1.5 m / 5 f t . long)


Addi t ional funct ions: Auto-tuning function, AGC (Automatic Gain Control)

' under ideal transmission conditions (free-field)

AKG Acoustics GmbH H A Harman International Company Lembockgasse 21-25 , P.O.B. 158, A-1230 Vienna/AUSTRIA, Tel: (+43 1) 86 654-0*, Fax: -7516, e-mail: [email protected]

AKG Acoustics GmbH BodenseestraBe 228, D-81243 Munchen/GERMANY, Tel: (089) 87 16-0, Fax: -200, e-mail: [email protected]

AKG ACOUSTICS, U.S. 914 Airpark Center Drive, Nashville, TN 37217, U.S.A.. Tel: (+1 615) 620-3800, Fax: -3875, e-mail: [email protected]

w w w . a k g . c o m

08/03/PROA1468

http://www.akg.com/hearoplayer

mailto:[email protected]



http://www.akg.com

Documents

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