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BeoCenter AV5

Bang & Olufsen BeoCenter AV5

” Picture this. The perfect picture “

BeoCenter AV5 was, at first glance, merely a television set. However, what you saw was just half the picture. The AV5 was in fact a fully integrated, compact digital home entertainment system, comprising a CD player, FM radio and powerful loudspeakers… as well as a television!

On top of the AV5 a CD player elegantly lifted open to allow you to drop in your CD and listen.

BeoCenter AV5 therefore offered the best of both worlds and allowed you decide. At the touch of a button, two motor-drive loudspeakers stretched silently out to each side of the TV set. It was a simple, welcoming gesture but one that also ensures a special performance every time you switch on. The extra width allowed the loudspeakers to combine with the ear-shattering centre bass to produce optimal stereo sound in its full perspective. It was something you could hear – and feel – every time you watched a movie or listened to the in-built radio or played a CD. Indeed, BeoCenter AV5 was so versatile that at the time of its introduction, it could also play CD-i discs.

Devoting efforts in creating the perfect sound didn’t mean that Bang & Olufsen had forgotten what they knew about creating the perfect picture. On the contrary. The AV5’s 63cm super flat picture tube, combined with the contrast screen’s anti-reflective coating, delivered a sharper picture, with more depth and perspective, than you had ever seen before. So when the AV5’s electronic curtains glided open you could be sure that what lay behind them was pure entertainment.

Another original Bang & Olufsen feature added to daylight viewing comfort. It was a small electronic sensor that registered the prevailing light conditions in the room and adjusted the picture, so that it was always sharp, no matter whether a reading lamp was lit or sunlight suddenly poured through the window.

Touch CD on the Beo4 remote control and the AV5 moved on its motorised stand to face the viewer’s favourite viewing position. And active speaker stretched out from each side. On top, a CD player elegantly lifted open to allow you to drop in your CD and listen. The superior sound of the AV5 was made possible by the creation of a ‘soundscape’ that widened the perspective of the sound to make each individual instrument clear and distinct. Combined with an inbuilt, ear-shattering centre bass, the AV5 delivered a sound so rich and true that the effect was remarkably similar to a dedicated surround system.

Like every other Bang & Olufsen product, Beovision AV5 was designed and crafted with the greatest care. To ensure that the powerful centre bass unit didn’t interfere with the steadiness of the picture, it was mounted on an intricate suspension system, which in turn was anchored to a special aluminium chassis. The CD unit was perhaps the most robust then, on the market, to allow it to cope with the demanding environment – electronic noise, hot air and interference – in which it had to perform. And on top of all that, the entire unit was ‘torture tested’ hundreds of thousands of times to make sure that it could cope with the rigours of daily use!

Beovision AV5 construction

The rear of the AV5 is removed by undoing four screws. It may have taken some 150 tools and six construction engineers to make the parts and components, but as far as possible, one size of screw was used to assemble the AV5. The result was, up to 1999, the most advanced piece of electronic design ever to leave the Struer assembly line. Yet everything follows a strictly modular pattern, making maintenance and servicing logical and straightforward.

How can 15 centimetres make a world of difference if you’re already sitting in front of the television, ideally positioned between the stereo loudspeakers?

If you want the full perspective of, say a symphony and you want to be able to identify each instrument in the orchestra, a distance of 80 centimetres is the absolute minimum. You must also make sure that the loudspeakers deliver exactly the same performance and have the same harmonic balance. This can only be obtained by the painstaking measurement, trimming, and pairing of every single tweeter and baffle that goes into the AV5 (or into any other Bang & Olufsen loudspeaker for that matter). Some manufacturers obtain “spatial effect” by reversing the signal phase on one side. This creates a broader perspective, but makes it impossible to locate voices or single instruments.

Flat as a pancake

The picture tube was a new 25″ ‘super-flat state-of-the-art’ tube. It delivered excellent focus, which, combined with the anti-reflective coating of the contrast screen, was experienced as a sharper picture with more depth and better resolution.

The antlers

The fact the loudspeakers disappeared into the front wall, calls for a special bearing structure. In the AV5, the heaviest component was the picture tube, which was fixed to a set of aluminium “antlers”, a moulded aluminium space-frame which also carried the loudspeakers and most of the wiring. Cast in two pieces, it was custom-designed to hold wiring and fixtures that traditionally, would have been mounted with additional clamps and screws. Aluminium has the advantage of being light, but rigid and non-vibrating. It will not conduct sound or allow oscillations that could affect sound or picture reproduction.

‘Dance steady’ is a term that B&O takes dead seriously. It refers to a product’s ability to perform effortlessly, no matter how animated the surroundings. The company’s secret remedy is rubber suspension. Inside the AV5, almost every vital unit was isolated from the bearing structure by little rubber sleeves. The transformer, the CD print card, the CD drive and last but not least, the centre bass, since it was the source of a sizeable proportion of the vibration pattern. Dance steadiness is measured on a vibrating table to determine the design of each individual rubber sleeve.

On and on and on…

Imagine that you’d turn the AV5 on and off maybe 10 times a day over the next ten years and multiply that by 5 for safety. That’s equivalent to turning it on and off 180,000 times over 10 years. In B&O’s torture chambers in the dungeons in Struer, the loudspeakers on the guinea pig AV5 were stretched well beyond the first 500,000 times!

“It can’t be done”

Buffers, shielded cables and a couple of brave hearts went into one of the most challenging technical solutions in the AV5. To make room for the CD player in the upper corner, it was necessary to separate the drive from the control unit. In an environment as compact and loaded with “electronic noise” as the AV5, a lot of sources could create interference and laser is a fragile technology. Servo signals have to travel a longer distance and streams of hot air will not make working conditions any more stable. As a result, the AV5’s CD player was one of the most robust on the market at the time of the AV5’s production.

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BeoVision Avant 32 VCR

Bang & Olufsen BeoVision Avant 32 VCR

TV isn’t just something you watch, it’s something you experience. That’s why BeoVision Avant makes a big deal about giving you the best in audio-visual entertainment. The BeoVision Avant was created as a video system, but during its design, the idea came up of making the television a picture on the wall. This has been achieved by deceiving the eye: this is a familiar ploy in the very best of designs.

The BeoVision Avant gives you a television that acts like a picture on the wall: a wall you personally position in the room. It has a built-in video which is invisible to the viewer. Everything is operated via the Beo4 remote control. You have full control from the best seat in the living room, and the television turns towards the viewer using the motorised base.

BeoVision Avant – designed by David Lewis – was a totally new concept from Bang & Olufsen and was introduced in 1995. This video system is completely integrated holding a widescreen television, a hi-fi stereo VCR and a couple of active speakers in its attractive-looking cabinet. It was also the first wide-screen TV from Bang & Olufsen ever. Although by the end of the twentieth-century widescreen TVs were taking more and more market share, most TVs still used the 4:3 format. When Bang & Olufsen started planning for this model they originally envisaged to use the same technology then currently used in the MX series but along the way they decided to develop a completely new chassis. This new chassis is much more advanced.

The Avant is also a very environment-friendly TV using a lot of recycled material as well being recyclable itself at the end of its serviceable life. The set can also be expanded with several add-ons. For example: picture-in-picture (PIP), satellite receiver and Dolby Pro-Logic or Dolby Digital decoder. The Avant is the pathway to the future of video systems; a whole new concept of the most advanced video system from Bang & Olufsen to date.

The widescreen format 16:9 picture tube is used for the first time in the BeoVision Avant. This created conflict between designer David Lewis and Bang & Olufsen’s technicians, as the designer could not see the point of it. A new picture tube that could not be filled by the TV picture. Where randomly placed grey stripes on the picture tube were a part of the framing of the picture most of the time. The technicians did not think it could be their fault. Wide format 16:9 was an attempt to consolidate a whole industry around a new market standard. The designer’s talk of trimming and stretching the picture to fill out the frame was, in their eyes, simply distortion. There was no ideal solution to the dilemma.

Together they had to find the solution that would work best in practice. It was not possible to fill the 16:9 format with a 4:3 TV picture. The necessary trimming and stretching annoyed the eye too much. On the other hand, wide format had a lower limit. In the eyes of designer David Lewis, that lower limit lay in the 14:9 format. The technicians struggled to implement the format with as little distortion as possible. They also checked to see whether designer David Lewis would notice the difference if the format was a little bit smaller. Just a few millimetres smaller on the longer element! But David Lewis saw it straight away. There was a distinct limit in the eye’s perception of the transition to wide format, and it lay at 14:9.

Finally, they managed to come up with a method that could handle the problem satisfactorily in practice. A method that has subsequently been further developed to implement the 15:9 format that is close to the aesthetic ideal: the golden rectangle. Programmes recorded and distributed in 16:9 are the ideal way of filling the wide format, but the range is still limited. Bang & Olufsen’s wide-format TV offers a practical solution to filling the screen with ordinary TV and video programmes. It was created by trained eyes.

TOP TIP

Information valid for:

BeoVision Avant 50 HZ MK I MK II

Intermittent jamming of cassettes during eject; VTR fails

Symptom: Intermittent jamming of certain types of cassettes in the tape mechanism during eject.

Cause: An edge of the cassette or a misfitted label, etc. may catch the lower part of the cassette lid and prevent the cassette from being ejected.

Solution: Replace the cassette lid by the new type, which is fitted with two small round knobs on the lower part of the lid.

To avoid colour differences the lid is supplied together with side panels and the small triangle (BeoVision Avant TV, service manual pos. 9016).

This solution is implemented in the production as from Avant serial number 12159658 (week 38 of 1996)

Its standard features were: VisionClear Technology and multi-format picture. It houses a 16:9 widescreen television with automatic picture adaptation, which means that every broadcast, no matter where it originates, is automatically shown with the optimum reproduction, from news reports in standard format, to movies in widescreen.

BeoVision Avant features the same functions as Beosystem AV 9000. When you turn it on, first it turns on its motorised stand toward your favourite watching-place. Then comes the sound, produced by four active loudspeakers hidden directly underneath the widescreen, while behind the black curtain the picture adapts to its format and to the lighting conditions in the room, before the curtains glide aside and reveal a perfect picture.

BeoVision Avant encourages you to lose yourself in a sound and picture experience – and not in the technology. That’s why we hang the 16:9 Real Flat wide-screen on its own smooth wall and conceal everything else behind it – including a set of speakers that will outpace the average hi-fi and a video recorder that tunes itself automatically.

You can choose a built-in DVD player or video tape recorder and from a range of five colours. There’s also the option of a simplified 66cm version with no integrated entertainment source.

Design
Close your eyes and imagine the perfect TV. Open them again and take a look at BeoVision Avant. It’s a widescreen TV that’s easy to understand, effortless to use and always a pleasure to watch.

Though a widescreen TV is never going to be small in size, it doesn’t mean that it has to dominate its surroundings. The Avant has a subtle presence and comes in a range of colours that allow it to compliment any environment in which it’s placed.

At Bang & Olufsen, it is taken for granted that when you watch TV, you want to concentrate on the experience rather than on the technology. That’s why the Real Flat screen is ‘hung’ on its own “wall” with everything else concealed behind.

Widescreen
The picture quality provided by the Avant is as close to the real thing as you can get. Its smooth Real Flat widescreen provides the perfect format for movie watching – and together with the exceptional sound creates a spatial illusion that’s second to none.

Switch on the Avant and it automatically adjusts any broadcast to the optimal widescreen picture – no matter what format it was produced in. News and sports broadcasts are expanded from the traditional 4:3 format into 15:9, while movies shot in widescreen are reproduced in a 16:9 format that’s as close to the original cinema version as you can get. And, if you don’t like the picture as it is, you can easily change to another format with the Beo4 remote control.

BeoVision Avant models:
BeoVision Avant 100Hz MK III (832x)

BeoVision Avant 100Hz MK I MK II (830x)

BeoVision Avant 28 DVD (834X)

BeoVision Avant 32 MK II MK III (842x)

BeoVision Avant 32 DVD (844X)

BeoVision Avant 50Hz MK III MK IV (810x)

BeoVision Avant 50Hz MK I MK II (81xx)

BeoVision Avant CTV (836x)

BeoVision Avant RF 28 (833x)

BeoVision Avant RF 28 CTV (837x)

BeoVision Avant RF 32 (843x)

BeoVision Avant US (8490)

Features
Watching movies should be about simple entertainment, not complicated technology. That’s why the Avant is available with its own built-in DVD player or video recorder. Its presence is only given away by a discreet lid on the front. All cables are hidden in the back of the set.

To ensure even greater viewing comfort, the Avant has its own motorised stand that turns effortlessly through a 70 degree arc. You can program it to turn automatically towards your favourite viewing chair, or use the Beo4 to turn it in the opposite direction. When you switch the Avant off again, it returns silently to its original position in line with your furniture.

A red LED display on top of the cabinet gives you a discreet status of the source you are viewing, without intruding on the picture. It also shows the volume status when you adjust the volume level, and other information related to recording, Dolby Surround and so on. On the back of the display is a hidden push button panel for the most frequently used controls.

The Beo4 remote control is used to access all the various functions of video-playback and recording, menus, tuning, text-television, picture optimisation, sound properties and so on. Beo4 is designed for user-friendly and ergonomical operation with one hand. The buttons in a star-shape for search, ultra-sharp still-picture, super slow-motion, programme shift and fast forward can be controlled by your thumb only, you don’t even have to move your eyes. Beo4 also controls all the latest B&O audio systems as well – it’s the key to complete home entertainment!

A discreet display on the upper right hand corner of the Avant lets you know what source is playing and a small control panel placed behind it offers hands-on control of all basic functions.

This television became the basis for renewed efforts in the US television market which has been overall successful.

Let the show commence!
It has been said that ‘Bang & Olufsen’s products are enchanting’ ! And the magic, the good idea, often comes into being in the course of finding a solution to some practical problem. The practical problem here was that there was a short time lag between pressing the button and a picture appearing on the screen. So you would sit and wait expectantly for a little while. The experience of waiting reminded designer David Lewis of a theatre before the curtain went up! Behind the curtain, preparations are being made for the performance.

The lighting and sound are adjusted and the actors take their places. The curtain only goes up when everything is ready. The first television to have a curtain was the BeoVision AV 9000. The curtain was a thin steel sheet that was slid to one side by a clever mechanism when the stage was set. Bang & Olufsen’s wide-format television, the BeoVision Avant, is equipped with an electronic curtain. From the moment you press the button until the curtain slides away, the technology is busily working unnoticed. No pop from the loudspeakers, no random flash of light from the screen. Only when the sound is ready and the picture is in place can the performance begin.

VCR
Underneath the loudspeakers is the access to the VCR. The Avant incorporates the same video-technology as the V8000 systems, namely a stereo VCR that can play back recordings of all standards. The video machine has, naturally, record indexing and it can show the elapsed or remaining time of any cassette being played. Dolby Surround is an option, and when installed, Avant can take the place of the AV9000 video system. Another option is a PIP-module (Picture-In-Picture).

Sound
The perfect picture deserves a sound to match and that’s exactly what the Avant offers. A pair of specially developed loudspeaker units – capable of outperforming many traditional hi-fi setups – are discreetly placed below the screen and offer an exceptional sound performance that will enhance the best action-movie or concert footage.

The BeoVision Avant features a built-in Dolby® Digital* module that lets you bring the cinema directly into your living room. With a pair of loudspeakers from Bang & Olufsen’s BeoLab range positioned at either side of the TV and two more placed at the rear, you can put yourself in the middle of a surround sound experience that’s second to none.

The sound quality of the active loudspeakers can compete with any modern audio system. When the herd of horses approaches your seat from within the widescreen, you can feel the tremble of the horses’ hooves – so powerful is the bass. And as a video-master in a Beolink system, Avant can distribute sound and vision all over your home – just as it can play the music from your audio system in its speakers.

The Perfect Illusion
Press a key on the Beo4 remote and the electronic curtain glides aside to reveal a perfect picture. A theatrical gimmick or another technological leap forward? Actually, a bit of both! In the short reaction time before the curtain glides aside, a comprehensive circuit adjusts contrast levels, brilliance and colour to the prevailing light conditions in the room, ensuring the optimum picture reproduction every time.

An anti-reflective coating on the picture tube, as well as on the contrast screen is provided to eliminate reflections from windows, carpets and furniture. If you watch television during the day you’ve probably experienced the glare and reflections caused by direct sunshine. To minimise the problem, the Avant’s picture tube and contrast screen have been given a special anti-reflection coating that reduces reflections by up to 99%.

Home Cinema
There was a time when watching a movie on TV was a poor imitation of the real thing. But not anymore! BeoVision Avant brings the movies directly into your living room with a smooth, true-to-life picture and totally convincing sound.

BeoLab 2 completes this ultimate surround setup and – together with the other four active loudspeakers – allows you to make the most out of the advanced sound opportunities offered by the Avant’s built-in Dolby® Digital* module.

Colours
BeoVision Avant comes as one integrated unit. All you have to do is to plug in the mains and the antenna and you’re ready to watch. There are no other visible cords, allowing the Avant to be viewed from all sides – so it does not have to be set up in a corner or next to a wall. It fits nicely into any kind on home, thanks to the range of many available cabinet colours: pearly blue, pearly black, pearly red, pearly green and silver.

When the system is turned off, it turns back to its original position, the sound fades away and the curtains glide in front of the screen. Just like being in your own private small-screen cinema!

Wax & fix
The weight of the Avant’s widescreen picture tube called for new thinking in terms of construction. High density fibre board turned out to be as solid a solution as it is environmentally healthy. To disguise its low tech appearance, it is treated to a high quality two-component lacquer of the same type as is used at the upper end of the car industry. It will not scratch easily, but should this happen, a minor scratch can be polished away using liquid silicone car wax.

*Dolby Digital is a trademark of Dolby Laboratories Licensing Corporation

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BeoVox CX100

Bang & Olufsen BeoVox CX100

Living proof that big sound need not take up more space than a couple of ring binders, Beovox CX50 snuggled in anywhere, even as extras in a Beolink® system.

Beovox CX50 and Beovox CX100 loudspeakers were the smallest loudspeakers from Bang & Olufsen up to the time that the manufacture of passive speakers ceased in 2002. They were mostly used to place within a passive Beolink® system (MCL), although they could also be used as main speakers. Thanks to different colour combinations they blended well into most people’s décor.

Beovox CX100 finally ceased production in September 2003 – the last of a long and successful line of passive speakers.

Description:
Passive loudspeaker, aluminium cabinet, available in black, white and brushed aluminium.

Replacement drive units: Top drive unit for CX50/CX100 Part number: 411743

Mounting Options
BeoVox CX50/CX100 replaced C40 and was designed to be optionally mounted with the wall brackets supplied in the box.

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BeoVox CX50

Bang & Olufsen BeoVox CX50

Living proof that big sound need not take up more space than a couple of ring binders, Beovox CX50 snuggled in anywhere, even as extras in a Beolink® system.

Beovox CX50 and Beovox CX100 loudspeakers were the smallest loudspeakers from Bang & Olufsen up to the time that the manufacture of passive speakers ceased in 2002. They were mostly used to place within a passive Beolink® system (MCL), although they could also be used as main speakers. Thanks to different colour combinations they blended well into most people’s décor.

Beovox CX100 finally ceased production in September 2003 – the last of a long and successful line of passive speakers.

Description:
Passive loudspeaker, aluminium cabinet, available in black, white and brushed aluminium.

Replacement drive units: Top drive unit for CX50/CX100 Part number: 411743

Mounting Options
BeoVox CX50/CX100 replaced C40 and was designed to be optionally mounted with the wall brackets supplied in the box.

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BeoCom 9800

Bang & Olufsen BeoCom 9800

Battery chargers for mobile phones are not the most exciting objects in the world, but Bang & Olufsen have a continual habit of making a virtue out of what others see as ordinary. By combining the battery charger with a specially designed holder, BeoCom 9800 suddenly became a mobile phone that users really wanted others to see!

Weighing less than 100 grams and able to fit snugly in a pocket, the BeoCom 9800 mobile phone was one of the world’s smallest cellular phones when it was introduced, with an equally impressive list of features. Tell it the name of the person you wish to telephone and BeoCom 9800 dialled it. The inclusive BeoCharger combined holder and battery charger in an attractive package.

Features:

Caller ID; Call Forward; SMS; Voice Dial; Call Duration; Call Hold; redial function for last 10 numbers; 90 minutes’ battery talk time with 100 hours standby; graphic display; keypad lock; clock; data/fax connection; 100g with standard battery

Accessories

BeoCharger; extra battery; hands-free car kit

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BeoCom 5500

Bang & Olufsen BeoCom 5500

BeoCom 5500 was a cordless telephone that allowed you to have a telephone conversation where you were, or wanted to be, and not only where your telephone was.

outdoor range of up to 300m · indoor range of up to 50m · 5 hours of talk time · 40 hours of stand-by · memory for 20 numbers · redial function for the latest 4 numbers · keypad lock · built-in speaker in base · volume control

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BeoCom 2500

Bang & Olufsen BeoCom 2500

With BeoCom 2500 means of communication couldn’t be simpler. The display on the phone allows you see the caller’s number, the time of the call and even the caller’s name if it’s listed in the 121-number memory. And if you can’t get to the telephone, or just don’t want to be disturbed, BeoCom 2500 can act as a passive answering machine registering the numbers of the last 24 callers.

BeoCom 2500 also has optional volume control for recent B&O AV equipment and is available in a good choice of bright and bold colours.

BeoCom 2500 features:

  • The display informs you of the duration of a call and gives status information on the functions available
  • All primary functions are available directly from the keypad of the BeoCom 2500
  • the ultra-light handset weighs only 115 g and is comfortable to use even during the longest conversations
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Beocom 2100

Bang & Olufsen Beocom 2100

Good business is also about good communication. The telephone and the computer are important work tools for any business. As they sit side-by-side on your desk anyway, it makes sense to connect them and extend the capabilities of both. With BeoCom 2100, when a customer calls your business, his file on your computer’s database is automatically displayed. (The phone was not available in the UK).

BeoCom 2100 has a capacity for up to 250 individual entries, dependent upon the length of the telephone number and name. These can also be accessed and edited directly via the computer screen. The Caller ID function requires connection to a direct line

A matter of choice

BeoCom 2100 is a telephone for the home office, the small business or anything in between. It’s the first telephone to be built specifically around the services offered by the telephone companies and gives you one-button access to the services and functions you use the most

Functions and options

But it’s not only the improved access to external services that makes BeoCom 2100 a special telephone; it contains its own 250 name and number electronic telephone book and includes a headset connection and the opportunity for hands free operation

ISDN enhanced by Beoline 1200

The role of BeoCom 2100 in an office setting is further enhanced when it’s combined with a Beoline 1200 adapter. This makes it possible for traditional analogue equipment to communicate digitally via an ISDN connection Available in: Denmark, Netherlands and Sweden (2001) – Not available in the UK

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BeoCom 1600

Bang & Olufsen BeoCom 1600

BeoCom 1600 was a tabletop telephone which combined a modern design with ease of use and was the same telephone as the BeoCom 2400 but without the alpha numeric memory functions. It however, did have the normal numeric memory functions. Using this phone was easy.

As with all other Bang & Olufsen telephones, BeoCom 1600 was equipped with a bass reflex speaker giving clear and easy recognisable voices. An infra-red module was available as an optional extra, giving the user the ability to control the volume on other Bang & Olufsen audio and video products. It was designed by the Swiss industrial designer Martin Iseli.

The vertical placement of the BeoCom 1600 handset made it easy to answer a call. Making a call was equally simple due to the position and curved surface of the keypad. The ultra light handset ensured that even long telephone conversations never seemed tiring.

Design

Reach out to towards BeoCom 1600 and enjoy a telephone that was simple to understand and easy to use. The ultra light handset weighed only 115g – which made it comfortable to hold even during the longest of conversations. The intelligent layout of the sloping keypad also ensured that your fingers moved intuitively and easily from button to button and from function to function.

Features

With BeoCom 1600’s built-in memory you could store the 10 telephone numbers you used the most and enjoy quick one-button access to them. As well as a volume control that allowed you to adjust the sound level during a call, BeoCom 1600 also offered a built-in loudspeaker function and the possibility to mute the microphone in the handset.

Colours

There was a choice between black, blue, red, yellow, green, terracotta, and grey.

A/V Control

With an optional A/V volume control incorporated into BeoCom 1600, you could adjust the sound on your Bang & Olufsen audio-video products directly from the telephone.

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BeoCom 1000

Bang & Olufsen BeoCom 1000

BeoCom 1000 was similar to BeoCom 2000 but it was not fitted with a loudspeaker or an LCD display. This lowered the cost while at the same time offering the usual high quality sound There was a choice of four colours: black, blue, green or red.

Bang & Olufsen did not invent the telephone. They just developed it a little further Bang & Olufsen’s Telecom Vision is to “constantly question the ordinary in search of surprising, long-lasting experiences”

Loudspeaker quality

Earphone coupling loss factor, receiver loudness rating value and acoustic leakage are technical terms that mean little to most telephone users. They are just some of the things that Bang & Olufsen test for to determine the sound quality of a BeoCom telephone.

The enhanced sound of the BeoCom telephone range is the result of Bang & Olufsen’s long-standing specialisation in the miniaturisation of high-performance loudspeakers. Every BeoCom handset contains a built-in pressure chamber loudspeaker that ensures optimal natural sound reproduction while minimising distortion and sound leakage.

But Bang & Olufsen telephones are not only the result of theoretical calculations and complicated acoustical analyses, the final test is the human ear itself. A listening panel made up of people with an extraordinary sense of hearing provides the most crucial evaluation of BeoCom telephones.

Telephone competence: even good telephones have bad days

Telephones are used a lot more than other electronic equipment and sometimes under tougher and more hazardous conditions. Design and technological features mean little if your telephone lets you down when you need it most, so the anticipation of what can happen to a telephone has been turned into a fine art at Bang & Olufsen.

Our telephones are exposed to extremes of heat and cold, we spill coffee over them, blow dust at them, step on them and subject them to a whole series of bumps, vibrations and falls.

And it’s not only the unexpected that’s tested for, a robot assesses daily wear and tear by methodically lifting and replacing the handset of a telephone 100,000 times, while a mechanical finger dials telephone numbers over and over again. In a space of days, we simulate the life of a telephone and everything the modern world may throw at it.