Beocord 3500 was part of Beosystem 3500, a budget-priced system for those who wanted to get onto the Bang & Olufsen bandwagon but could not afford, or did not want to have, the extra features that say, Beosystem 4500 had to offer.
It included specifications such as Dolby B Noise Reduction and a Sendust head for longer life of the recording/playback head, otherwise the features were identical to the Beocord 4500. Its only difference was the grey finish instead of its more expensive brother’s polished surfaces.
Beocom 2000, the classic telephone from Bang & Olufsen… what else is there to say?
Beocom 2000 was unlike anything which had been introduced by Bang & Olufsen before.
All the parts of the phone were made by the company itself and not imported from other manufacturers. A well-equipped telephone with extraordinary sound quality, a tradition carried on with all of the Beocom range of telephones.
The design is truly timeless. The display gave information on which number your were calling and the time connected. All standard functions were of course, also available, like volume control and numeric memories, and for the more advanced user there was a special headset available!
This phone was also available in a more simple version, Beocom 600, which didn’t have the display but had the same sound quality.
The memory bank of the Beocom 2000 enabled you to store your personal top twenty, and at the touch of just a few buttons you were connected. With display, bass reflex speaker in handset, 20 numbers of memory, quick call key for an often-use or ’emergency’ number, redial of last 3 numbers called, pause function, adjustable volume control, microphone mute (for secrecy), built-in speaker for listening, adjustable tone ringer with 8 settings plus off. There was even a hidden note pad which could be used by raising the lid on the right-hand side of the unit!
Up to 1993 Beocom 2000 was produced with different coloured keys. However, from this time a more mellow design was offered with all the keys complementing each other. On its bright display with large characters the Beocom 2000 could offer you the last three numbers for redialling
BeoCom 1400 and BeoCom 1500 were the first in the ‘new’ series of Bang & Olufsen telephones after the classic BeoCom 2000. The 1400 and 1500 series had a keypad integrated into the handset and not within the base like BeoCom 1600 and 2400.
This made the phone very compact. However, the sound quality was just as high as the more expensive phones because the two phones featured the same type of bass reflex speaker. Since everything is integrated in the handset, Bang & Olufsen offered no less than five different holders. Three different holders for wall mounting, one simple, and one with a built-in notebook.
There was also a version with an infra-red module to control the volume on main Bang & Olufsen equipment. Two table bases were also available, with and without the above-mentioned infra-red module. The main difference between BeoCom 1400 and 1500 is that the 1400 didn’t have memory capabilities or volume control.
A special Bang & Olufsen feature was ‘spontaneous videotaping’. If you wanted to record the programme you were watching it was simply a matter of pressing ‘record’ twice on the remote control handset – and the VCR would automatically find the right channel and start taping.
You could with Beocord VX5500 play back in slow motion all the way down to still. You could use the picture-in-picture module with the VCR and the B&O TV on which you had it linked up to and it was also possible to keep your video tapes organised. By using a graphic ‘notebook’ you could name every video tape you record. Then you use the Beolink 5000 or Beolink 1000 terminal to simply order up the number of your recording.
Beocord V3000 was designed to match Beovision LS5500 in looks and budget in order to allow video programming directly on-screen. It permitted eight programmes to be recorded up to one year in advance and had a superb quality slow motion and freeze facility. It also had twin speed recording and playback.
With the assistance of the Beolink 1000 remote control terminal you could handle complicated programming of the video recorder in the easiest possible way – direct via a menu on the TV screen. Beocord V3000 also had Bang & Olufsen’s uniquely fast access to taping any programme you were watching at that moment.
Press RECORD twice on the Beolink 1000 terminal and the VCR would automatically find the right channel in its memory and commence recording your TV programme. It was a fast mover too, having two winding speeds in both directions for picture search. Four video heads ensured that you obtained still pictures and slow motion in choice quality. Sound quality was in mono.
Beocord 4500 cassette recorder housed exciting details and distinguished technology. Like Auto Reverse, so you did not need to turn over the tape. Automatic registration of the type of tape, and Bang & Olufsen’s patented HX-PRO recording system that provided optimal sound reproduction. Both in design and technology, Beocord 4500 was a direct extension of Beomaster 4500.
The cassette recorder featured Bang & Olufsen’s own HX-PRO recording system which ensures that recordings are made as perfectly as possible. With the Beolink 1000 terminal or by lightly touching the panel itself, you could select a particular piece of music you wanted to hear. The search system found it automatically whether it was on Side 1 or Side 2 of the cassette. For Beocord 4500 had Auto Reverse so you did not have to turn the tape over.
The recorder was also equipped with Dolby B and knew exactly what type of tape you were using. Beocord 4500 could be used as part of the Beosystem 4500 hi-fi system.
Beocenter 2300 was dedicated to the CD enthusiast who, for example, like to store the titles of favourite CDs, or permanently skip unwanted tracks. It was known as Beosystem 2300 when connected to the BeoLab 2500 active speakers. It was eventually surpassed by BeoSound 3000 when it included more features and received a facelift in 2001.
Beocenter 2300 was developed from the idea of a flexible music system that could compete with the sound quality of heavy music systems. Thanks to the advent of active speakers, this was a possibility with both Beocenter 2300 and its similarly-equipped sibling (which also had cassette tape recording and playback) the Beocenter 2500. With active speakers, each of the powerful bass and treble units were equipped with their own separate amplifiers. In addition, the electronic cross-over network ensured full bass reproduction.
The loudspeakers were located on both sides of a centre console, where two clear glass covers automatically glided to the side when a hand was passed in front of them. Behind the glass covers there was access to the operating panel, receiver, CD player and a cassette recorder.
The receiver allowed the option of presetting 2 x 20 FM/AM radio stations. The cassette recorder featured Auto Reverse, Automatic Recording level, search function and Bang & Olufsen’s HX-PRO recording system, a system which ensures that the sensitive treble range is captured in recording. The memory in Beocenter 2300’s CD player allowed you to edit up to 100 CDs.
Both systems could be operated via their operating panel or a Beolink 1000 or Beolink 5000 remote control. There were sockets for headphones and connection to additional sound sources; extra loudspeakers can also be connected.
Beocenter 2300 was available with loudspeaker panels in cobalt grey, black, white, cerise or jade and could be made up to the Beosystem 2300 when incorporated with the BeoLab 2500 active loudspeakers.
Mounting Options
This classic design was reincarnated over a 21 year period with various mounts and stands. Floor stands were available with a pole stand or CD and tape storage, wall mount solutions allowed for the Hi-Fi only, or with BeoLab2500 speakers until these were discontinued
Beocord 7000 was a high-quality cassette recorder used specifically with Beosystem 7000. When playing cassettes, the order of the tracks could also be changed and the recorder could also find a specific track on a tape. Other functions included Auto Reverse, Auto Record levels, Dolby B and C as well as Bang & Olufsen’s recording system HX-Pro, which ensured that the sensitive treble range is captured in recording.
Beocord 7000’s features were supplemented by an abundance of special features. Space available precludes a more full description of elements such as the design of the peak programme meter, locally operated functions such as microphone recording, memo set/go, adjustment of the maximum record level and so on.
Main features:
Auto record level
Auto track search/auto reverse
HX Pro
Auto Dolby B-C
Auto tape switch
All operation available from Beolink 7000, with full display readout of track bar, counter, record level, Dolby NR, auto reverse functions, sequence programming etc.
Recording with Beosystem 7000 was a system feature, with benefits such as automatic signal routing, record lock, etc. Beocord 7000 contributed a lot to the convenience of the system and the unique auto record level was the feature that made remote controlled recording a real possibility – without compromising the quality of the recording. To further ensure a high and consistent sound quality level Beocord 7000 was equipped with HX Pro.
Auto record level
Auto record level is a unique Bang & Olufsen feature and ensures a uniform and optimal recording level from all sources, from tape to tape, without overload. Major benefits of auto record level are:
all tapes recorded with auto record level have the same optimum level, without overload and therefore without distortion
a recording can be started immediately and directly, without any pre-adjustments
you do not have to supervise a recording to adjust record level and the system recording even stops the recording when the source runs out, or stops the source when the tape runs out
if auto record level interferes and adjusts the recording it is done in such a way that it is not noticeable in playback. The dynamic range of the recording will not be impaired and the adjustments are carried out so early that overload is precluded.
The assets of auto record level are obvious when a comparison is made between those carried out on a standard recorder without auto record level and those with.
Recording on a standard recorder requires you to supervise the recording in order to step in if the manually set input level is too high. In this case you would have to adjust the record level down when a signal with a high dynamic content is to be recorded. If this is not carried out the tape will be overloaded and the music distorted. Without auto record level, copying is in real-time, which means that you will have to pay attention all the time you are recording (or risk a distorted recording). And when a very wide dynamic signal threatens to overload the tape being recorded, the record level must be lowered quickly, which will often be audible in subsequent playback, either as a suddenly lowered output volume or as a distorted signal because the record level was lowered too late.
Auto record level is an efficient remedy to this problem, without both disadvantages mentioned above. Primitive solutions reduce the record level when powerful signals are recorded and increase the record level when weak or no signals are recorded. The result can be a fluctuating dynamic range with, for example, pauses between tracks causing the recording level to rise dramatically and the noise level with it.
The Bang & Olufsen solution
The auto record level in Beocord 7000 was monitored by the microcomputer interacting with the peak programme meter indicator on the front of the cassette deck. Auto Record Level only reduces the record level and only if the signals exceed the set value for a certain period. In this way brief noise pulses, such as the ones resulting from scratches on a record, do not lower the record level. When a signal of more than +2 dB above the set value is encountered, the microcomputer lowers the record level with 2 dB. The recording continues at the lowered level unless even louder signals appear and trigger new reductions.
Other advantages of auto record level are:
it is applied to all sources, even if you record sound from a video source
the preset values can be changed, e.g. if you use special tape formulas
auto record level can be overridden while you are recording, or you can make a recording with manual adjustment of the record level
You did not have to pre-adjust Beocord 7000 before you started a recording. Another feature was the auto tape switch, i.e. an automatic adjustment to the three tape types, metal, chrome and ferro, by means of three electronic sensors located in the cassette holder. Auto-reverse was the default mode both in recording and playback, i.e. Beocord 7000 automatically continued the recording (and playback) on side two, when side one ran out. The turning time from side one to two was very short, because an optic sensor registered the lead-in tape and executed the 180 degree turning of the tape head immediately. Auto reverse could be cut out manually to protect side two from being recorded. This had to be done prior to record start.
Track Search
Beocord 7000 featured track search, based on pauses between individual tracks. You could also make a sequence programming, operated just like CD. Track search was available no matter if the track was on side one or two of the tape. Even if you executed a manual TURN function (i.e. change playback direction) the microcomputer registered the turning point and if you selected a track after the turning point the search for this track would be initiated at the turning point. Track numbers could be displayed on Beolink 7000.
Auto Dolby
Another convenience was the Auto Dolby function. All tapes recorded on a Beocord 7000 contained inaudible information as to whether the tape was recorded with Dolby B, Dolby C or no Dolby noise reduction. The registration of noise reduction type was dynamic and in case the circuit registered a change during playback the reduction was automatically changed. If no signal was registered, e.g. on a pre-recorded tape, the noise reduction last selected would remain active, until altered manually (see more below).
HX-Pro
Beocord 7000 was equipped with HX Pro, like all other ‘stackable’ Bang & Olufsen audio tape recorders. HX Pro is an acronym for Headroom Extension Professional and tapes recorded with HX Pro give a better reproduction quality on playback, no matter which tape deck they are played on. Both the dynamics and the the signal capability in the treble range is improved. The improvements are most noticeable in the reproduction of treble signals, but also the midrange will be influenced in a positive way. At 10KHz the signal loading capability is improved by approximately 8dB for chrome tape, 5dB for ferro tape and 3dB for metal tape formulas.
Beocord 7000 could ideally be used as part of Beosystem 7000.
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
