Tandberg NEW-6000X (1970)
A three-speed open-reel deck that Tandberg advertised as beating its own top-rated Model 64 at half the tape speed.
Overview
At 3¾ ips, Tandberg's own advertising claimed the 6000X surpassed the 7½ ips performance of the company's "world famous, top rated Model 64." The claim was 40-18,000 Hz ±2½ dB at 3¾ ips. The copy ran as a full-page Tandberg ad in Audio (February 1970, p.3), High Fidelity (February 1970, p.15), and HiFI-Stereo (March 1970, p.23). That's marketing copy, not an independent lab verdict, and no third-party test results survive in the available record. Still, it's the number Tandberg wanted buyers to fix on: full high-fidelity bandwidth from a slow speed that most decks of the era treated as a convenience setting.
The mechanism behind that claim was Tandberg's Crossfield bias system, which the company billed as the deck's defining feature. Tandberg's advertising positioned the 6000X against "the most precise professional instruments that sell for $1,100 or more," while the deck itself was priced at $499.00. That comparison is a manufacturer's claim, not a measured head-to-head. What the surviving documentation does establish is the feature set: four hyperbolic, mumetal-screened, precision-gapped heads; stereo mixing; cueing; source-versus-tape monitoring; sound-on-sound; add-a-track; and remote control capability. Independent mike and line recording controls rounded out the front panel.
Tandberg published a 62 dB signal-to-noise ratio, a 70 dB dynamic range, and an additional 24 dB of overload protection. The overload headroom in particular suggests Tandberg expected users to record hot rather than tiptoe around the peak indicators. The deck carried peak-reading VU instruments rather than average-reading meters, and Tandberg specified it for use with low-noise tape.
The model represented a styling break for the company. The deck could be operated vertically or horizontally, so a three-speed machine with this much functionality was easier to fit into a real listening room without a dedicated shelf.
Production years beyond the 1969-1970 introduction window aren't documented in the sources at hand, and neither are dimensions, weight, or the number of motors. Tandberg pitched the deck hard on its slow-speed performance and its Crossfield head design, at a price that undercut the professional gear it was compared against by more than half.
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