At the time of Beogram 3400’s release, there was substantial interest in ’surround sound’ from black vinyl records using the various forms of quadraphonic systems that were around at the time. A fad, perhaps… a little like 3D cinema, which rears its head every now and again only to hide back in a cupboard a few years later. However, if a customer wished to foray into the world of quadraphonic, then the Beogram 3400 would have been a good choice as this particular record deck was able to play both stereophonic as well as SQ-matrix quadraphonic recordings. The possibility of playing CD4 records was also an option. For this, a supplementary CD4 decoder (the CD4 Demodulator) could be bought which automatically detected and played back CD4 records when setting up with the turntable.
Beogram 3400 had a radial turntable which played back discs at both 33 and 45 rpm. It came with an MMC 5000 cartridge and matched well other Bang & Olufsen record decks of its day with its sleek good looks, choice of finish and automatic playback.
An exciting record deck for the Bang & Olufsen collector.
703 (1975 - June 1977) 
Sound system CD - 4, stereo, matrix 
Speeds: 33 - 45 rpm 
Tonearm: radial 
Pick-up cartridge: MMC 5000 
Recommended stylus pressure: 1g 
Stylus Shibita Diamond 
Radius of curvature CD-4 quadro 
Frequency range 20 - 15,000 Hz +/- 2 d 
20 - 45,000 Hz (CD-4) 
Automatic pickup movement Yes 
Automatic speed selection Yes 
Wow and flutter DIN: < +/- 0.07 % 
Rumble DIN unweighted > 42 dB 
Rumble DIN weighted > 62 dB 
Speed deviation < 0.1 % 
Speed control range > 3 % 
Dial for speed Stroboscope 120mm 
Output: 2 x 0.6 mV 
Stylus pressure range: 0 - 2.5 g 
Tracking error < 0.126 / cm° 
Lift system: mechanical 
Antiskating Inclined channelling inside bearing 
Motor: asynchronous 
Drive system: Idler wheel and belt 
Turntable 30cm / 1 kg 
Power supply: 110 - 220 V 
Power consumption: 10 W 
Dimensions W x H x D: 44 x 9 x 33cm 
Weight 6 kg
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