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BeoCenter 1800

Bang & Olufsen BeoCenter 1800

Beocenter 1800 fulfilled hi-fi standards by a wide margin. The product was also way above the average in terms of ease and operation. Experience from Beomaster 1100 and Bang & Olufsen’s integrated gramophones were combined in the special space-saving unit, which on a specification level was on a par with many separates.

The FM section had automatic frequency control (AFC), four pre-set stations and light indicators. The amplifier’s power output was 2 x 22 watts RMS with less than 0,3% distortion at full power output.

The integrated gramophone was fully automatic. The user simply chose the size of the record and pressed a button – the machine did the rest. The pickup arm was of magnesium which was extremely light. This, together with the MMC 3000, a low-mass cartridge, made this one of the very few turntables on the marker that was capable of tracking warped records. The anti-skating device also worked automatically.

The pickup arm and the turntable mechanism had a special spring suspension which made the turntable shock and vibration resistant.

Records could be played with the dust lid closed, thus protecting both the turntable and the record collection from damaging dust particles. Beocenter 1800 had connections for tape recorder, two sets of stereo speakers and a pair of headphones.

When connected to a pair of Beovox Uni-Phase passive loudspeakers, it was known as Beosystem 1800.

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BeoCenter 1400

Bang & Olufsen BeoCenter 1400

The amplifier section of Beocenter 1400 offered qualities which were unusual for a combination product in this price-range. Frequency range was 20-30.000 Hz, with harmonic distortion of less than 0.5 % at maximum output. Power output was 2 x 20 watts RMS or 80 watts total music. The technical data of the FM section, like those of the amplifier fulfilled the DIN 45500 high-fidelity norms by a wide margin. A wide frequency range was obtained both on mono and stereo reception. The balanced light indicator was a simple but effective aid to accurate tuning. The automatic frequency control (AFC) facility allowed precision tuning.

Beocenter 1400 – “Each unto his own taste” – especially with music.

Receiving distant stations was no problem on Beocenter 1400 owing to the receiver’s high sensitivity (better than 1.8 uV IEC). The compact cassette section had its own operating facilities: ON/OFF switch and piano key push buttons for recording and play-back functions. You could switch between chromium dioxide and normal tapes. Recording level was controlled by a handy slider on a numerical scale and light indicators: Red or green light showed overloading or satisfactory recording level. Tape-heads were of super permalloy, an extremely durable material which ensures a long useful lifetime. Wow and flutter was less than ±0.28% (JIS norm).

Signal-to-noise ratio was better than 50 dB with chromium dioxide tapes. Bang & Olufsen placed emphasis on good station separation in the AM section (long and medium waves) without sacrificing sound quality. A slider control aided radio tuning. Beocenter 1400 had sockets for a record player, headphones and loudspeakers. An extra tape or cassette-recorder could also be connected. Beocenter 1400 utilised the (then) latest electronic components: Darlington transistors, field effect transistors, integrated circuits and ceramic filters.

When combined with Beovox 1702 loudspeakers and/or Beogram 1203, the system was known as Beosystem 1400.

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BeoGram 1102

Bang & Olufsen BeoGram 1102

Beogram 1102 was a fully automatic, hi-fi stereo record player with electronic servo-drive and high specification level. Operation was easy and straightforward. All functions were controlled by pressing the rectangular operating panel and if dissatisfied with the pitch of the record, speed could be adjusted by depressing the panel and rotating the little thumbwheel.
The pickup was an MMC 3000 with a spherical diamond. It tracked records at a stylus pressure of 1,2 grams. In order to fully exploit the pickup’s outstanding qualities, B&O constructed an extremely light magnesium pickup arm which, together with its unique suspension, ensured low inertia and thereby good conditions for correct contact between stylus and both walls of the record groove – at all times. Even warped records could be played satisfactorily.

Despite high specification levels, Beogram 1102 and 1902 automatic record-players are extremely easy to operate. All the technicalities are hidden under the surface.

Bang & Olufsen’s Electronic Servo Drive ensures that the rotatory speed of the Beogram 1102 and 1902 was always correct despite variations in the mains current supply. This is so because the system has a special feedback circuit which effects automatic corrections to compensate for these inherent variations

Beogram 1102 could be made up as part of the Beosystem 1100, together with other compatible Bang & Olufsen products

Beogram 1102 UK price in 1978: £97.00

These decks are beautifully made and offer super sound quality for almost no money. Much easier to maintain than the tangential decks simply because they are very simple! Excellent isolation from external vibrations – strongly recommended – and they were when new by Hi-Fi Choice! Simpler than the earlier 1100 – and better for that! A DC motor replaced the AC motor fitted to the 1100 and was electronically regulated with speed adjustment done through a potentiometer as opposed to the complicated measures used in earlier decks. This method would roll out across the range of Beograms.