Beomaster 8000 Receiver in excellent physical condition and in good working condition for sale. This is the largest Bang and Olufsen ever made with an output of 150 Watts per channel. It has a remote control. Two of these recently sold for $ 600 each.This is a 240 VAC 50/60Hz European version. This means that in order to use this in the USA you will need to either connect to a 240 VAC outlet, or obtain a 120 VAC to 240 VAC voltage matching transformer with at least a 750 VA (Kilo Volt Amp) rating.
You can easily find a new 1,000 VA rated voltage matching autotransformer online for about $50 including shipping. Most homes are already set up with 120 VAC and 240 VAC inside the main circuit breaker, so it's easy to have an outlet wired for 240 VAC. A pair of DIN speaker wire connectors is included. I'm hoping to sell this locally as it is quite heavy to ship at 47 lbs plus the weight of the boxes. Published Beomaster 800 specifications: Continuous power per channel 150 W at 4 ohms 100 W at 8 ohms Rated bandwidth 20 - 20,000 Hz Total harmonic distortion < 0.05 % IHF intermodulation < 0.1 % Signal-to-noise ratio: A-weighted Phono > 75 dB A-weighted Tape > 77 dB Channel separation > 55 dB Bass control +/- 10 dB Treble control +/- 10 dB FM range 87.5 - 108 MHz Power supply 240 volts
Power consumption 10 - 700 W Dimensions W x H x D 67 x 15 x 37 cm Weight 21 kg (47 lbs) RIAA Built-in Connections: Headphones Max. 16V / 200 ohms Tape 1 DIN Tape 2 DIN Phono out Phono Jacks Phono Phono Jacks Aerial FM 75 ohms Aerial AM 240 ohms Speakers 2 set Link compatibility: Datalink Various articles about the Beomaster 8000: https://www.beoworld.org/prod_details.asp?pid=377 Manufactured: 1980 - 1985
Designer: Jacob Jensen
Colours: Rosewood Beomaster 8000 was an advanced FM receiver with a rated output of 2 x 150 watts IHF A-202. It had the power, precision and overall performance to reproduce all types of music with the utmost fidelity. The radio section united the principle of the modern digital frequency synthesizer tuner with a precise, automatic fine-tuning system to give unparalleled accuracy and long-term stability of reception. The set's control panel gave instant access to all sound sources - an associated record deck and two tape decks and any of 9 user-programmable FM stations. The visual feedback indicated which sources were playing and their volume settings. Controls for secondary functions were protected beneath a hinged lid. The infra-red BeoLab Terminal was for its time, complex technology tamed. It gave easy, direct access to music and allowed the control of a musical experience from anywhere in your room and operate Beogram 8002 and Beocord 8004 if these were part of your system. A single touch is all there was between what you wanted and the fulfilment of your wish. Radio programmes, cassettes and records were all available at the touch of a button. In the early 1980s the technical quality of records, tapes and FM transmissions was vastly improved. Improvement meant increased dynamic range. Increased dynamic range in sound sources makes great demands on hi-fi components. They must accommodate a greater range of tones: from the very faintest tinkle of a triangle to the loudest roll of the bass drum; and reproduce each tone accurately. This requires powerful, serious hi-fi components. Power to accommodate the dynamics, and accuracy to ensure that the fundamentals and harmonics of each tone are reproduced faithfully, i.e. with the intervals and relative intensity that gives each instrument its characteristic quality. The 2 x 150 watts RMS Beomaster 8000 high fidelity FM receiver had the power, precision and overall performance level to help you achieve this goal. Up to the time of its introduction, it was Bang & Olufsen's most accomplished receiver to date. During its construction phase, the company focused on one major goal: that none of its circuits or components should be able to limit or distort the sound signals it received before the amplifier's power output level was exhausted. In accordance with this, a special circuit registered, and the "clipping" function indicated when you should regulate volume level, if you wanted to ensure continued undistorted sound. Volume was controlled by a 60-step electronic attenuator. This regulated both channels together, in balance, and allowed precise adjustments. A digital frequency synthesizer tuner was incorporated. It was a further development of other constructions since this tuner locked stations onto their actual transmission frequencies, rather than using a mere internally-generated frequency reference. Beomaster 8000 had the most comprehensive user-programmable facilities imaginable. They were placed out of view in the programming compartment because you didn't need to use them every day. The primary controls were external. To keep you informed, whenever the music system was in use, the status of the primary settings was displayed on the Beomaster's large communication panel. Beomaster 8000 formed the heart of the Beosystem 8000. Beolab Terminal Remote Controller
Manufactured: 1980 - 1985
Designer: Jacob Jensen
Colours: Black
The remote for the audiophile Beosystem 8000, this infra red controller used a similar style of button to those found on the Beosystem. It offered basic control of the system from the comfort of your armchair. ---------------------------------------------------------- http://beocentral.com/beomaster8000 Beomaster 8000 The Beomaster 8000 still remains the most powerful receiver ever produced by B&O. It was also the largest and amongst the most expensive. As well as bringing new levels of performance and quality, the Beomaster 8000 also introduced a new range of features that would remain in subsequent models until B&O ceased to produce Hi-Fi separates components. What made the Beomaster 8000 different from the previous models was the large increase in power and the use of microprocessor technology. These two things gave the new model a unique character and returned B&O to the very top of the league in terms of high quality amplification, a position that it had last occupied over ten years previously with the Beolab 5000/Beomaster 5000 system. There was more to the amplifier sections of the Beomaster 8000 than just a lot of power. Throughout the amplifier, new techniques were used to ensure that the resulting quality of the system as a whole was as high as was obtainable. The pre-amplifiers used integrated circuits throughout, which were powered from dual split supplies. This technique was more commonly found in instrumentation and studio equipment and had not been seen before in a Beomaster. The use of these integrated circuits allowed a large amount of gain to be achieved with minimum distortion. It also allowed complex filters to be implemented with comparative ease, allowing the response of the amplifier to be tailored accurately to the designer’s (and listener’s) requirements. As well as providing accurate RIAA correction for LP records, the pre-amplifier also included two extra switchable filters, bass and treble controls and switchable loudness compensation. As with the Beomaster 4400, all the filters could be switched out to provide a “flat” response, either directly on the set or by remote control. The volume control was also of a new design. For the first time in a Beomaster, electronic attenuators replaced the traditional mechanical volume control. There were a number of advantages to this arrangement, including precise matching to the gain of the two channels at all levels, ease of remote operation and the ability to define the precise “law” of the control so that accurate adjustment of the volume could be made at low levels whilst large amounts of power could also be summoned relatively easily. The pre and power amplifiers of the Beomaster 8000 were connected via external links so that they could be used separately or with extra filters and equalisers in between. The power amplifiers built upon the principles already used in the Beomaster 4400 but offered twice the power. This was achieved in part by using six (rather than the previous four) power transistors in each channel and by raising the supply voltage to a total of 110V. Uniquely amongst Beomasters, including those yet to be designed, the Beomaster 8000 power amplifier was built using the “dual mono” technique, where each amplifier was a separate physical entity, along with all its wiring and power supply. The only common part was the mains transformer (an oversize toroidial device which was mounted centrally in the Beomaster chassis and fitted with its own heat sink), though this did have two separate secondary windings, one for each channel. The dual mono technique minimised the interaction between that amplifiers to the fullest possible degree so that no matter was required of one, it could not affect the other. This ensured the integrity of the stereo image, regardless of the listening level. The sophisticated amplifier was protected by various safety devices. Overloading and overheating were protected against by electronic circuits and the order in which the various power supplies were established at switch-on was carefully controlled, as was the order in which power was removed on switch-off, something that made the use of the “stand by” function mandatory. Simply pulling out the mains plug was not recommended as the loudspeakers could easily be damaged. The power supply held such a large energy reserve (essential for the accurate reproduction of musical peaks) that the power had to be applied to the transformer in two stages so that the domestic fuses and wiring were not damaged. The microcomputer control system was the other important innovation in the Beomaster 8000. This was used to allow comprehensive remote control of all the major functions, digital tuning of the FM radio and to allow interaction with the other components in the system (tape recorder, record player). Although the digital tuning was new, various remote control systems and interconnections between equipment had been seen before in the B&O range (e.g. Beomaster 6000 4 channel, and Beomaster 2400-2). While these previous systems had used digital techniques, their operation was determined by the design of the circuits. The Beomaster 8000 introduced the idea of software control, where the operation of the system was sequenced by a computer program. This allowed the interconnections to be made more subtle, and the remote control more useful. The “user interface” of the Beomaster 8000 consisted of a keyboard and two rotary controls along with four LED numerical readouts and four illuminated indicators. Further controls and a radio signal strength meter/FM stereo indicator were hidden under a large metal flap at the upper left of the fascia, which could be opened by touching the black strip beneath it. The main keyboard had keys to select 9 pre-set FM radio programmes, a turntable and two tape recorders, along with a long bar for stand-by. The two large wheels controlled the volume and the tuning. The operation of these was sensed optically so their travel was not limited, though the volume wheel was damped with heavy oil so that it could not be spun too easily. The radio was tuned by simply turning the “frequency” wheel. The frequency to which the radio was tuned was shown in the display and as this was derived by measurement from the radio circuit it was unfailingly accurate. Two tuning modes were available, “manual”, where the tuning followed the wheel precisely, and “automatic”, where the receiver would search and lock onto receivable stations in the direction that the wheel was turned. Nine stations could be stored for instant recall via the nine keys on the main keyboard. The tuning meter could be used to either assess signal strength or the level of multi-path distortion. Oddly, despite the use digital displays and controls, the tuning meter was a traditional moving-coil type. The other digital displays showed the sound source (or preset tuning number), volume setting and balance. The indicator lamps warned that mono operation had been selected, that the tuning was set to manual mode, that the filters and tone controls were in-circuit and that the amplifier was being driven to the extent that “clipping” distortion was occurring. The microcomputer control of Beomaster 8000 introduced a new concept to B&O’s range of tape recorders and record players: Datalink. This allowed data to be transferred between the equipment and was used mainly for automatic source selection and increased remote control capabilities. Datalink worked in both directions, so that pressing “play” on a source component would turn on the Beomaster and select the correct input, and choosing a source on the Beomaster or the remote control would turn on that source and start it playing. Datalink was a standard, so any combination of units (providing that they made up a complete system) would work together. The first two sources to support this system were Beocord 8000 and Beogram 8000, though many more would follow over the years. The connection for the second tape recorder to the Beomaster 8000 did not include Datalink and had its levels adjusted to suit older equipment (such as the Beocord 5000). The Beocord 8000 at last ushered into the B&O range the idea of using “line” level connections between a receiver and a tape recorder, reducing the noise and allowing longer cables to be used. The Beomaster 8000 thus provided a “line” level signal for the main tape recorder. Even though the main recorder connection (TP1) was intended for use with a Datalink-equipped machine, there was a facility to use it as a “tape loop” for three-headed machines for off-tape monitoring. When it became clear that B&O was not going to produce something suitable to use with this, the Beomaster 8000 was modified and the monitor function was transferred to the second recorder connection (TP2). The Beomaster 8000 included infra-red remote control as a standard feature. The terminal provided was the Beolab Terminal, which offered comprehensive control of the amplifier, selection of the preset radio programmes and sources and basic control of a turntable and tape recorder. This represented a major advance over the ultrasonic system that had previously been employed. The Beomaster 8000 was indeed a formidable piece of equipment and offered the possibility of excellent performance. That is not to say that it was without its drawbacks. Apart from the enormous cost, it was very large, very heavy and shaped so that it could not be stacked (something of which B&O did not approve). It was far too deep and heavy for conventional shelving and so special preparations had to be made to house it. Assuming that the owner would also buy at least one extra source (it is unlikely that anyone would spend the cost of the Beomaster 8000 and be satisfied with FM radio alone), the system soon became very large indeed. B&O’s answer was the System Cabinet SC80, which housed the system on two levels and left room for records, cassettes and accessories. Though beautifully finished and veneered, this unit had the unfortunate effect of turning the hi-if system of the future into what looked like the Hi-Fi system of the past, a radiogram. Later the SM80 (System Module) offered a more modern style, though a lot of floor area was still needed. Despite the size of the system, it was still dwarfed by the truly massive loudspeakers that B&O offered for use with it. The colossal Beovox MS 150 was the usual choice, and although it was well matched in most respects, due to its 8 ohm impedance it could not make use of the full output of the amplifier. The Beomaster 8000 was rated at 150W only into 4 ohms, the figure fell to 100W if 8 ohm loudspeakers were used. The Beomaster 8000 represented a high point in the engineering of domestic audio equipment by B&O. It came the closest to offering professional performance in a domestically acceptable package and should be commended for that. The exercise was not to be repeated though, for a few years later the design goals changed from the pursuit of outright performance to making equipment that performed well and could be easily accommodated in modern homes and used by anyone. Designs such as the Beomaster 8000 are sometimes referred to as “signature” pieces that demonstrate what a company can do when most of the restrictions are removed. Recently, the introduction of the BeoLab 5 loudspeaker has shown a welcome return by B&O to this type of activity. ----------------------------------------------------------
http://beophile.com/?page_id=1040 Beomaster 8000 The beautiful Beomaster 8000 was the largest and most powerful receiver produced by Bang & Olufsen up to that time and was partnered by the similarly-looking but smaller Beomaster 6000. Never since the Beolab 5000 System had Bang & Olufsen produced anything as sophisticated and good-looking. However, the unit was extremely heavy, not able to be stacked (as with the Beosystem 5000, for example) and also very expensive to buy. As desirable as it was, the receiver often stayed on prospective buyers’ wish lists rather than being a practical, and affordable, purchase. The amplifier delivered a massive 150W per channel and Datalink was fitted so that the separate components which made up the Beolab 8000 System could communicate with each other. The amplifier was based upon the Beomaster 4400 but produced twice the level of power. By the time that Beomaster 8000 was released microprocessor circuitry had developed sufficiently to allow its incorporation whereby it controlled the receiver’s major functions. Included filters could mould the sound appropriate to the listener’s needs. These controls were also duplicated on the receiver’s specially-designed remote handset, the Beolab Terminal. This infra-red remote (the first of its kind as previous remote control terminals had all been based upon ultrasonics) allowed major functions to be controlled including FM radio digital tuning and communication with an attached record deck and tape recorder. Safety features were built in to protect the receiver from both overheating and overloading any loudspeakers in use with it. A specially-designed circuit registered volume levels and the unit’s incorporated ‘clipping’ function told the user just when volume levels should be regulated in order to ensure that sound did not become distorted. Volume level was by was of a 60-step electronic attenuator. This regulated both left- and right-hand channels together, in balance. Also very precise adjustments could be made. Beomaster 8000’s user interface was striking by its two large ‘wheels’ which were used to control volume and radio tuning. A keyboard together with four LED numerical displays and four illuminated indicators were also included on the unit’s top. Other necessary controls, together with a radio signal strength meter and FM stereo lamp, were discretely positioned beneath a large aluminium lid on the top of the unit. This could be opened by gently pressing the black strip beneath it. The main keyboard on the receiver comprised aluminium-finished buttons by which to choose any of the nine pre-set FM radio programmes, a record deck and two tape recorders. The recommended loudspeaker was the Beovox MS150 and the suggested record deck was the Beogram 8002. The Beocord 8004 or Beocord 9000 cassette decks could both be used satisfactorily with Beomaster 8000. System Cabinet SC80 was available to accommodate the receiver as well as associated Beolab 8000 System components. BeoMaster 8000 types:
Market: Type: Intro. year: Last sold:
1901 1980 05-85
GB 1905 1980 05-85
US 1903 1980 12-85
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