A part of the Bang & Olufsen complete home entertainment solution is the light control system which allows for the adjustment of light-settings of a single lamp, room or entire house with a Beolink® remote control.
You can also program local and global light-settings so that when you press ‘LIGHT’ and ‘1’ on the relevant remote control all the lights in the room adjust to their preset lux-settings which are stored in memory-location ‘1’. Nine local light settings can be stored with the dimming of each light unit being made individually.
Each light which should be included in the light programming must have an LC2 unit (the latest device) attached to them. It’s a small white, slim box with a dark glass ‘eye’ in the middle (see below). The ‘eye’ also operates as a tactile on/off switch – by touching it the light turns on or off; by keeping a finger on it the light dims upwards and downwards gradually.
The light-control units were also timer-programmable through two-way communication with the audio master (Beosystem or Beocenter) acting as the timer-host. In this way you could set the lights to dim when, for example your favourite TV-series began and the Beovision TV turned on! Unfortunately, since the demise of two-way communication in the mid-1990s this is no longer possible.
LC1 Light control module (1989-1992)
With the LC1 light control unit it became possible to regulate lighting levels and distribution using a Beolink 1000 terminal. The Mk3a Beolink 1000 was the first terminal to include a ‘Light’ key, and this, in conjunction with the volume keys, set the light level. Up to nine LC1 light controls could be used in one room, using the number keys on the Beolink 1000. LC1 light controls could also be preset at a number of different intensities, so that different ‘light pictures’ could be called up quickly and easily. The LC1 also had a sensi-touch area on its top surface in order that the connected light could be switched on and off manually.
Other remote control terminals that controlled the LC1 were Beolink 5000, 7000 and Beo4. Master Control Panels 5000, 5500 and 6500 did not include a light function.
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.
The crowning glory of Beolab 20 is the Acoustic Lens that delivers smooth high-frequency sound in full 180 degrees. The results are uncompromising listening experiences across your room and much greater freedom in terms of where you place your speaker for optimal sound.
BeoCord V8000 video tape recorder matched the Beovision MX range of Bang & Olufsen televisions in looks as well as performance.
You could store a channel on the Beovision MX TV and it was automatically communicated to the V8000. Recording was a simple matter of selecting the programme directly from Teletext using the Beo4 remote control. It could be positioned by using one of the stands as part of a Beovision TV.
BeoCord V8000 rewound a three-hour tape in 95 seconds and it shifted from fast forward to play in a split second.
Other features included NTSC stereo playback. Looks-wise it embodied a black fascia with a choice of cabinets in pearlescent shades of blue, green, red, grey and black, plus glossy grey and glossy white.
The widescreen BeoCenter 6 LCD television is available in 23” and 26” versions. Both come custom-fitted to match your needs. For example, you could have built-in FM and DAB radio in the compact 6-23 in your kitchen and Surround Sound and DVB-S modules in a 6 – 26 used for watching TV in a small living room or a bedroom. Or you could mix and match. Your ‘second television room’ just became the place to be. The integration of picture and sound in the compact cabinet creates a simple and elegant plug-and-play television concept.
Gorgeous from good morning to good night
The handcrafted cabinet of the BeoCenter 6 speaks volumes about the dedication that went into its creation. The sleek lines of the BeoCenter 6 blend in anywhere in your house. Both in your kitchen, drinking your morning coffee, or in your bedroom – enjoying the late night comedy before you go to sleep. The elegant aluminium front and frame are available in a selection of dashing colours as well as discrete aluminium, black and dark grey versions. Using its special digital input, BeoCenter 6 can function as a spectacular computer monitor that would take pride of place in any room, especially if matched with the compact BeoLab 3 or BeoLab 4 loudspeakers in striking red or blue – or perhaps the golden anodised aluminium of BeoLab 4000.
Fewer boxes. More TV and radio
The new BeoCenter 6 takes intelligent integration to a new level and introduces DAB radio options together with a TV for the first time ever. When you are listening to the radio, the screen can display available programme information. Equipped with wake-up timer and timer play the BeoCenter 6 makes the perfect choice for a second room television. A selection of wall mounting brackets and stands are available for versatile placement. The motorised floor and table stands can be controlled from the Beo4 remote control, turning the TV 35° to each side. In addition, the tilt mechanism means easy adjustment of the television up and down on the vertical axis.
The definitive BeoLink screen
BeoCenter 6 can function as a stand-alone television, or as the second-room TV in a BeoLink setup. You can enjoy all sources from the main room on the BeoCenter 6, such as DVD, digital music, etc. For instance, you can watch satellite TV in your bedroom on your BeoCenter 6 – 23, even though the satellite receiver is in your living room. BeoCenter 6 can also be used as an ‘audio link master’ that lets you access the radio function from other rooms, if linked to a pair of BeoLab speakers.
True Bang & Olufsen picture and sound
The BeoCenter 6 uses the best LCD screens available, and has been further improved with Bang & Olufsen VisionClear picture technologies, which are implemented in all TV solutions from Bang & Olufsen. Whenever BeoCenter 6 is switched on, VisionClear adjusts the image automatically in relation to light conditions in the room. Within seconds, the TV automatically adjusts contrast levels, brilliance and colour to match the light conditions at any given time. BeoCenter 6 – 23 utilises a compact one-way loudspeaker system, and BeoCenter 6 – 26 a two-way system, slightly more powerful to match the larger screen size and longer viewing and listening distances. The digital surround sound module available for BeoCenter 6 – 26 provides a digital surround sound experience in any setup with BeoLab loudspeakers. The television´s loudspeakers will in this setup function as a powerful centre speaker.
The new BeoCenter 6 takes intelligent integration to a new level and introduces DAB radio options together with a television for the first time ever. One of the best LCD screens available has been further improved with Bang & Olufsen’s own VisionClear picture technologies, to ensure the best possible picture in all situations.
When BeoCenter 6 is switched on, these picture-optimising technologies adjust the image automatically in relation to light conditions in the room. Within seconds, the television automatically adjusts contrast levels, brilliance and colour to match the current light conditions – and will carry on doing so until the television is switched off again.
BeoCenter 6 can function as a stand-alone television, or as the second-room television in a BeoLink setup. In the latter case, you can enjoy all sources from the main room on the BeoCenter 6, such as DVD, digital music, etc. BeoCenter 6 can be used as an ‘audio link master’ that lets you access the radio function from other rooms, if linked to a pair of BeoLab speakers.
Four placement options help BeoCenter 6 fit in, even in the smallest of spaces. The motorised turning function on the floor and table stand is controlled from the Beo4 remote control, and turns the television 35° to each side. In addition to this, the tilt mechanism means easy control of the television 13° up and down on a vertical axis.
The widescreen and high-definition ready LCD monitor is available in 23” and 26” versions. The integration of picture and sound in the compact cabinet creates a simple and elegant plug-and-play television concept. Connections for earphones, external entertainment sources, and BeoLab loudspeakers, are combined with digital interface for computers (DVI) – making the BeoCenter 6 the perfect companion for both work and entertainment.
When the FM radio, which is standard in the 23” version and optional in the 26” version, or the DAB radio feature, which is optional in both, is switched on, available radio text information rolls across the screen. A factory fitted wake-up timer supports the radio functionality still further.
BeoCenter 6 – 23 utilises a compact one-way loudspeaker system, and BeoCenter 6 – 26 a two-way system, slightly more powerful to match the larger screen size and longer viewing and listening distances. The digital surround sound module available for BeoCenter 6 – 26 provides a digital surround sound experience in any setup with BeoLab loudspeakers. The television’s loudspeakers will in this setup function as a powerful centre speaker.
Mounting Options & Stands
The tilt table mount was available for counter top mounting, designed to allow the bass port on the underside of the TV to ‘breath’. Motorised floor and table stands were complimented by a wall mount bracket which gave manual tilt and turn.
The widescreen BeoCenter 6 LCD television is available in 23” and 26” versions. Both come custom-fitted to match your needs. For example, you could have built-in FM and DAB radio in the compact 6 – 23 in your kitchen and Surround Sound and DVB-S modules in a 6-26 used for watching TV in a small living room or a bedroom. Or you could mix and match. Your ‘second television room’ just became the place to be. The integration of picture and sound in the compact cabinet creates a simple and elegant plug-and-play television concept.
Gorgeous from good morning to good night
The handcrafted cabinet of the BeoCenter 6 speaks volumes about the dedication that went into its creation. The sleek lines of the BeoCenter 6 blend in anywhere in your house. Both in your kitchen, drinking your morning coffee, or in your bedroom – enjoying the late night comedy before you go to sleep. The elegant aluminium front and frame are available in a selection of dashing colours as well as discrete aluminium, black and dark grey versions. Using its special digital input, BeoCenter 6 can function as a spectacular computer monitor that would take pride of place in any room, especially if matched with the compact BeoLab 3 or BeoLab 4 loudspeakers in striking red or blue – or perhaps the golden anodised aluminium of BeoLab 4000.
Fewer boxes. More TV and radio
The new BeoCenter 6 takes intelligent integration to a new level and introduces DAB radio options together with a TV for the first time ever. When you are listening to the radio, the screen can display available programme information. Equipped with wake-up timer and timer play the BeoCenter 6 makes the perfect choice for a second room television. A selection of wall mounting brackets and stands are available for versatile placement. The motorised floor and table stands can be controlled from the Beo4 remote control, turning the TV 35° to each side. In addition, the tilt mechanism means easy adjustment of the television up and down on the vertical axis.
The definitive BeoLink screen
BeoCenter 6 can function as a stand-alone television, or as the second-room TV in a BeoLink setup. You can enjoy all sources from the main room on the BeoCenter 6, such as DVD, digital music, etc. For instance, you can watch satellite TV in your bedroom on your BeoCenter 6 – 23, even though the satellite receiver is in your living room. BeoCenter 6 can also be used as an ‘audio link master’ that lets you access the radio function from other rooms, if linked to a pair of BeoLab speakers.
True Bang & Olufsen picture and sound
The BeoCenter 6 uses the best LCD screens available, and has been further improved with Bang & Olufsen VisionClear picture technologies, which are implemented in all TV solutions from Bang & Olufsen. Whenever BeoCenter 6 is switched on, VisionClear adjusts the image automatically in relation to light conditions in the room. Within seconds, the TV automatically adjusts contrast levels, brilliance and colour to match the light conditions at any given time. BeoCenter 6 – 23 utilises a compact one-way loudspeaker system, and BeoCenter 6 – 26 a two-way system, slightly more powerful to match the larger screen size and longer viewing and listening distances. The digital surround sound module available for BeoCenter 6 – 26 provides a digital surround sound experience in any setup with BeoLab loudspeakers. The television´s loudspeakers will in this setup function as a powerful centre speaker.
The new BeoCenter 6 takes intelligent integration to a new level and introduces DAB radio options together with a television for the first time ever. One of the best LCD screens available has been further improved with Bang & Olufsen’s own VisionClear picture technologies, to ensure the best possible picture in all situations.
When BeoCenter 6 is switched on, these picture-optimising technologies adjust the image automatically in relation to light conditions in the room. Within seconds, the television automatically adjusts contrast levels, brilliance and colour to match the current light conditions – and will carry on doing so until the television is switched off again.
BeoCenter 6 can function as a stand-alone television, or as the second-room television in a BeoLink setup. In the latter case, you can enjoy all sources from the main room on the BeoCenter 6, such as DVD, digital music, etc. BeoCenter 6 can be used as an ‘audio link master’ that lets you access the radio function from other rooms, if linked to a pair of BeoLab speakers.
Four placement options help BeoCenter 6 fit in, even in the smallest of spaces. The motorised turning function on the floor and table stand is controlled from the Beo4 remote control, and turns the television 35° to each side. In addition to this, the tilt mechanism means easy control of the television 13° up and down on a vertical axis.
The widescreen and high-definition ready LCD monitor is available in 23” and 26” versions. The integration of picture and sound in the compact cabinet creates a simple and elegant plug-and-play television concept. Connections for earphones, external entertainment sources, and BeoLab loudspeakers, are combined with digital interface for computers (DVI) – making the BeoCenter 6 the perfect companion for both work and entertainment.
When the FM radio, which is standard in the 23” version and optional in the 26” version, or the DAB radio feature, which is optional in both, is switched on, available radio text information rolls across the screen. A factory fitted wake-up timer supports the radio functionality still further.
BeoCenter 6 – 23 utilises a compact one-way loudspeaker system, and BeoCenter 6 – 26” a two-way system, slightly more powerful to match the larger screen size and longer viewing and listening distances. The digital surround sound module available for BeoCenter 6-26 provides a digital surround sound experience in any setup with BeoLab loudspeakers. The television’s loudspeakers will in this setup function as a powerful centre speaker.
Mounting Options & Stands
The tilt table mount was available for counter top mounting, designed to allow the bass port on the underside of the TV to ‘breath’. Motorised floor and table stands were complimented by a wall mount bracket which gave manual tilt and turn.
Bang & Olufsen’s preferred supplier for brackets and stands, STBbrackets, have made a range of solutions specifically for this model including a direct replacement for the tilt table mount. Distributed throughout the World by the Bang & Olufsen store network, the STB options add to the diversity of mounting options and positions available.
This advanced CD player was straight from tomorrow’s world – but it would still marry up happily with any Bang & Olufsen system created over the previous decade. It was as simple to use as a tape recorder. The track search system was invaluable for finding your way quickly around the disc. A display indicated the number of the track you’re on.
Recording was just as straight forward. And you could time recordings to the second – just press the sensi-touch panel and you could find out how much time was left on a particular track or on the whole disc.
This replacement for the former Beogram CDX used at that time, new 16-bit technology and an all-new optical system. The player itself though, was derived from the Philips CD150 machine; the same as that in the Beocenter 9000. After one year the machine was discontinued and replaced by the Beogram CD 3300 – a similar sensi-touch CD player – as part of Beosystem 3300.
A featherlight touch on the glass control panel brought up an illuminated display of numbers which corresponded to the tracks on the disc. You could select tracks in any order; you could see how long a track lasted and a motorised dust cover and automatic light were among the features that this stand-alone CD player possessed.
The CD player was based around the Philips CD104, built in Belgium.
As a standalone player, it lacked the Datalink and remote control facilities that its predecessor, the Beogram CD50, possessed. A good-looking CD player which performed well, it was later superceded by the Beogram CDX-2 in 1987.
Bang & Olufsen Sales Training System
Beogram CDX
Beogram CDX is a Compact Disc player in a classical Bang & Olufsen design
Features:
Top operation
Motor driven dust cover
Sensi-touch operation
ADVANCE and RETURN functions
Replay up to 4 times
Display with indication of playing time of individual tracks, elapsed time and index
Analogue and digital filter (176.4 KHz over sampling)
Connection with Phono plugs
Operation
If Beogram CDX is in standby position and there is a compact disc on the platter, one push at the PLAY button will start the playback.
If there isn’t a compact disc inserted, you push the EJECT button and the motor driven dust cover will open, the platter will lift and the compact disc can be inserted.
Apart from the above-mentioned PLAY and EJECT buttons, all operations are sensi-touch fields, which are operated with a slight touch.
When pushing the field PLAY, the dust cover closes automatically and playback starts.
The display indicates the individual tracks on the inserted Compact Disc. If it has more than 20 tracks, the two first digits in the time display will show the total.
The time display has 3 main functions, which can be ordered by pressing DISPLAY, namely the time of the individual tracks, the elapsed playing time and index, which is a sub-division of the time of the individual tracks.
ADVANCE and RETURN are used for jumping to the next or the previous track and are indicated with a flashing of the selected track on the display.
With the digits 1 to 0, a track can be selected at random and the jump is marked on the display.
With STORE and CLEAR you can select or leave out up to 40 tracks on the Disc.
REPEAT replays the Disc up to 4 times.
One push at STOP gives pause, and by keeping the finger on the field till the Disc stops, you get actual STOP. << and >> are used for fast search within the individual tracks.
When activating it once, you search in jumps of 1 second
By keeping the finger on the field you search in jumps of 10 seconds and after 10 seconds the jumps are 1 minute
Connection
Beogram CDX is provided with a fixed signal cable with Phono plugs and can be connected to all LINE inputs. For amplifiers with TAPE inputs which are already being used, we can deliver a CD/TAPE adaptor, type 8950060 (accessory at additional price)
1985 Magazine Review
” The CDX is one of two ‘Beograms’ which have been promised by B & O for some considerable time. It would seem that to a large extent B & O have edged, their bets, for the CDX is a Philips-based machine while the alternative model uses Sony-sourced assemblies. The CDX is an extraordinarily beautiful machine yet, as we shall learn, is based entirely upon the ever so humble Philips CD?101 (the same player as used by Meridian for the MCD conversion). The styling is obviously intended as match the other B & O units and so the company has an untapped market of existing owners who have been patiently waiting for a CD player. But it is a player well worth considering in its own right as a separate purchase.
Unusually the CDX is a top loader but the lid assembly is powered and in response to the eject button the lid assembly smoothly folds back to allow the disc to be loaded. With the exception of the Eject and Power switches, all the controls are touch sensitive (using a type of capacitive sensing) a choice which I found far from reassuring since I kept wanting to use extra finger pressure to ensure a good contact! My overall lack of confidence was further encouraged by the all black control panel which reveals nothing until the power is applied. Perhaps it’s too much like computer screen ‘soft keys’ for me for I kept wondering if the Play switch would be still in the same place every time I went back to this player!
Two types of display are provided; a digital readout to show track time, total elapsed play time, and track numbers up to 99; and a bar scale of 20 LEDs to show the status of the first 20 tracks. A reasonable range of facilities is offered with both track skipping and fast searching (both backwards and forwards). Tracks can be pre-selected for playback and programming is possible for combinations of up to 40 tracks stored in the memory. Finally a Repeat mode allows continuous playback of the whole disc or of individual tracks.
Once the CDX is opened some idea of B & O’s inventiveness can be gained. Into the plastic casing has been dropped a Philips CD101 player complete down to the signal and mains supply cables but less the Switch/Display board. Instead B & O plug in wires from their own front panel and wire connections to their Eject and Power switches. The whole conversion is very neat and since the Philips player is left unmodified all the standard parts fit thus ensuring ease of service.
It has to be said that providing the last word in performance is not needed; the Philips CD?101 is an excellent choice with the CDM mechanism being recognised for its good build quality and reliable operation (it is also to be found in the expensive Revox B225 player). The electronics design largely follows the familiar Philips circuit with 4 times oversampling conversion using a separate 14-bit DAC for each channel.
In the laboratory the performance was much as expected with a generally flat frequency response except for a mild dip of 0.25dB around 7kHz; very low noise (?104dB); low crosstalk between channels and quite reasonable linearity. No problems were experienced when using the error testing discs and this player did very well in playing back some of my badly scratched discs with very few garbled passages.
Auditioning was conducted through my usual system of passive control unit and Krell power amplifier with LC connecting cables. Essentially in terms of sound quality this was very much a case of re-reviewing a Philips CD101 (or Marantz CD63) and the expected high standards were
achieved. The sound can be characterised as open, exciting with a fine sensation of space and depth, and good stereo focus. The weaknesses were primarily at the extremes of the audio band with a warm, stodgy bass and a degree of harshness at high frequencies. However within the context of the B & O system the sound quality of this player would be considered quite excellent.
VERDICT: A beautiful model which will appeal to a wider market than just the traditional
B & O owner. The overall performance of the CDX is excellent and this player can be considered as good value
PROS: Good sound quality. Very good value for money. Beautiful looks
CONS: Rather fiddly to use. Old fashioned top loading ”
Beogram CD 7000 was distinctive because of its authentic sound reproduction as well as its large dynamic range. It was equally suitable for symphonic music and rock. Its many functions allowed you to pre-programme tracks for playback in any desired order. This CD player was the last in line as far as separates were concerned, replaced with the likes of Beocenter 2300 and Beocenter 2500.
Features:
Exclusive computer-controlled CD loading mechanism with extremely fast access time
CD tray machined from a 4mm solid aluminium plate for maximum mechanical stability and convenient loading
Disc tray cut-outs with rubber lining for 12 and 8cm discs
Spring-suspended CD mechanism and magnetic disc clamp
Special functions, such as scan and sequence programming, were carried out from Beolink 7000
Dynamic readout on Beolink 7000 of all functions, track bar, remaining time, elapsed time, scan, etc.
CD players are now among the simplest constructions in the electronic world and standard players are based on very few components, a simple electronic layout and use of economical materials, both inside the product and in the cabinet. In the construction of CD7000 the main objectives were the achievement of excellent mechanical stability, convincing sonic qualities and easy access to the CD functions.
The loading mechanism, the way the clamp function and the suspension of the CD mechanism were all points that received special attention. The high quality of the mechanical solutions was continued in the electronic circuitry and both were highly integrated and interdependent of each other.
The CD tray was very solid and elegant and the loading mechanism extremely durable. The tray was made from a 4mm thick sheet of aluminium and the conical recess for the CD was milled and diamond polished to the smallest of tolerances – to prevent dust gathering in the recess. The circular rubber profile protected the disc during loading and unloading, while the triangular cut-out facilitated unloading. To avoid static build-up the tray was connected to ground and to avoid ‘ringing’, a damping plate was placed at the innermost part of the tray, inside the cabinet.
The motorised movement of the CD tray was very fast and gentle. The movement was controlled by the microcomputer via an optocoupler and was a very stable mechanical solution with two parallel chrome plated brass rail tubes and precision plastic roller bearings. A nylon coated steel cord wire was applied for maximum duration and quiet transport. The electronically governed transport was very smooth, started the movement slowly, then speeded up very quickly, decelerating when the disc approached the clamp. Furthermore, it secured against possible damage occurring from obstacles either in front of the tray or in between tray and cabinet.
While the tray approached the clamp the disc was gently lifted off the tray and clamped between the CD mechanism and magnet. The magnet was placed on a bridge across the CD mechanism and when it engaged the disc the magnet was lifted away from the bridge. While the disc was rotating, the magnet was not in contact with the cabinet, but only the disc and CD mechanism.
This assembly was insulated very efficiently from the cabinet to prevent vibrations from the outside. A special suspension was designed, with 4 steel springs, encased in rubber. The springs ensured that the CD mechanism was fixed in the horizontal plane (i.e. across the disc), while a certain amount of movement was allowed in the vertical plane (i.e. up and down). Test showed that the servo system counteracts movements in the vertical plane better than in the horizontal plane, and the suspension thus was a good compromise with regard to immunity from external vibrations. The inherent frequency of the suspension was placed at 25 Hz to avoid tracking and focusing errors, which were prone to emerge if the CD mechanism was subjected to vibrations around 100 Hz and upward. Furthermore, at this frequency interference with the inherent frequency of the CD cabinet was also avoided.
The electronics
The CD format is one of the most precisely defined audio formats, but it is still possible to design differentiated products. The electronic solutions in CD 7000 were just as elaborate, the computer controlled loading just being one of the elements. Separate power supplies were available for the digital and analogue parts, and in connection with a careful print layout Bang & Olufsen achieved the most respectable electronic specifications. The digital-to-analogue filtering was special as well. First, a standard digital filtering (4 x oversampling) was applied to filter away the sidebands below 176,4 kHz. The analogue filtering at 176,4 kHz was carried out by a modified order filter. To avoid remnants of the 176,4kHz sideband having an effect on the filtering, a special suction circuit cut off the frequencies above 156,4 kHz. The modified filter was known as a ‘Bessel elliptical filter’. It had a very gentle filter characteristic and was not susceptible to ripple phenomena, phase distortion or ageing.
The functions
As with the other sources, operation was via the Beolink 7000, with full display readout of all functions. Special functions available included: the space function, where a pause of 4 seconds was added between tracks to facilitate track search on a tape recorded from CD 7000. Scan gave playback of the first 15 seconds of each track and was especially useful in connection with a sequence programming.
While you were scanning the CD, tracks could either be selected (compiled) or omitted and when the last track had been scanned, playback of the programmed sequence commenced. Sequence programming could also be carried out independently of the scan function and if you used the select programming, playback could be non-chronological. If you used the reject programming to leave out specific tracks, playback would be chronological.
Beogram 7000 could, ideally, be used as part of Beosystem 7000
If you wanted to indulge yourself with the finest sound quality then you’d do no better than listening to your favourite pieces of music on Bang & Olufsen’s Beogram CD 6500. Beogram CD 6500 was a replacement for its predecessor, Beogram CD 5500.
It played both 12cm and 8cm compact discs, and housed sophisticated and advanced digital technology. And it offered sound reproduction which would satisfy even the most demanding of listeners.
Beogram CD 6500 could be used as part of the Beosystem 6500 hi-fi system.
