ADC Accutrac 4000 (1976)

 

Its father was a turntable. Its mother was a computer. That's how the advert introduced the Accutrac 4000. Are you ready to hear the selection on a record in any order you like, as often as you like, and skip the ones you don't like. Even by remote control. It's a marriage of solid-state integrated circuitry, infra-red electro-optics and the latest in direct-drive engineering. The result: The Accutrac 4000, the most accurate, reliable, noiseless turntable ever invented. And it even lets you re-arrange selections on a record to hear them in the order you want. The Accutrac 4000 reaches new lows. Wow and flutter are down to a completely inaudible 0.03% W.R.M.S. Rumble, -70dB (DIN B). Tracking force, a mere 3/4 gram. And tonearm resonance, the ideal 8-10 Hz. A direct-drive motor brings the massive die-cast platter to full speed instantly. And keeps it there with the help of electronic sensors which adjust for power fluctuation. So now, instead of just listening to a record, you can re-arrange the playing order of the selections, repeat them, even skip the ones you don't like. Just by pushing a button. Suppose you want to hear selections 5, 3 and 7. Simply press the buttons marked 5, 3 and 7. In fact, you can pre-set the sequence with any combination of up to 24 commands. And if you don't want to leave your chair to give the orders, beam it in by cordless remote control with the transmitter and receiver. Because the tonearm is electronically driven, not manual, you never risk dropping it accidentally and scratching a record, or damaging the stylus. The reason for this miracle is the minute infra-red scanning beam in the head that reads the surface of the record and directs the tonearm to follow your instructions.

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