Micro Seiki DOX-500
The Micro Seiki DOX-500 is a model where the record is essentially bare. The Archive's research file contains no specifications, no production dates, no design notes, and no confirmed product category beyond "audio" — it isn't even established whether the DOX-500 was a turntable, a tonearm, or some other component. Rather than guess, this page states that plainly.
What the period magazines do show is a Micro Seiki busy with ambitious designs around that time. HI-Fi-Stereo-Buyers (September 1978, p.47) covered the Model MA-707 tonearm, which Micro Seiki claimed was the world's first dynamically balanced, low-mass tonearm with a patented variable mass capability — sold separately for $200 or fitted to three deluxe Micro Seiki turntables priced at $350, $450, and $500. Later issues in the same corpus cover the PD-375 and TT6000 turntables. None of that period coverage names the DOX-500.
So this entry is a genuine placeholder. If you have a brochure, a review, or a surviving DOX-500, the Archive would like to close the gap.
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