Kenwood KF-6011
Almost nothing is documented about the Kenwood KF-6011. The archive has no manual, brochure, or factory spec sheet for it. All that survives is a brief appearance in a period group test of tape noise-reduction units.
That test ran in HiFI-Stereo (December 1971, p.72). It describes the KF-6011 as a compressor/expander-type noise-reduction unit. For playback it was switched to expander operation and connected at the recorder's output. Gain was set to unity at 0 dB, so a full-level signal passed as though the unit were not in the chain. Gain reduction then followed as program material fell. The same magazine's measurements (p.71) found distortion close to that of the Advent reference unit and a signal-to-noise ratio of 69 dB.
One caution on the record: the OCR of that December 1971 review renders the model number as "KF-8011." The tested unit may have been a near-sibling rather than the KF-6011 itself. The evidence is too thin to settle it.
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