Kenwood KF-8011 (1984–1986)
The Kenwood KF-8011 is a digital synthesized FM/AM tuner from the Kenwood Lab series, built circa 1984 to 1986. It's a straightforward, well-specified component of the mid-1980s — no exotic circuitry, no legendary status, just a solid digital tuner with a clean feature set.
What the record shows: the KF-8011 offers 30 station presets (FM/AM), automatic search tuning, manual tuning, and a digital frequency display with LED indicators. The front panel labels it plainly as an "FM/AM DIGITAL SYNTHESIZER TUNER." It was part of the Kenwood Lab series, which also included the KA-8011 amplifier, the KX-8011 cassette deck, and the KT-7011 tuner among its lineup.
The tuner's RF specifications, drawn from the owner's manual, are respectable for the era: FM usable sensitivity of 10.3 dBf (1.8 µV/75 Ω), 50 dB quieting at 15.2 dBf mono and 37.2 dBf stereo, signal-to-noise of 80 dB mono / 74 dB stereo, and harmonic distortion of 0.15% mono / 0.3% stereo at 1 kHz. FM stereo separation is rated at 45 dB at 1 kHz, and frequency response holds to +0.5, –1.0 dB across 30 Hz to 15 kHz. AM performance is more modest — 20 µV sensitivity, 50 dB S/N, 0.7% distortion — which was typical of the band's treatment in this class of tuner. Capture ratio is 1.5 dB, selectivity 70 dB at ±400 kHz, and IF/image/spurious rejection figures run 80/75/65 dB respectively. Output voltage is 0.6 V at 100% FM modulation and 0.3 V at 30% AM modulation.
Physically, the KF-8011 measures 413.5 mm wide by 115 mm high by 301.5 mm deep and weighs 4.5 kg. It draws 11 watts from a 120V/60Hz supply. The rear panel offers a 75-ohm unbalanced FM antenna input and a loop terminal for AM.
High Fidelity (April 1972, p.30) noted in a broader piece on noise-reduction systems that Kenwood's KF-8011 "denoiser" was "particularly elaborate, acting in four frequency bands, each of which can be denoised (or left unaltered) independently of the others." That's a curious reference — it describes a noise-reduction unit, not a tuner, and the date predates the 1984–86 production window by over a decade. It's possible the model number was reused across product categories, or that the reference is to a different Kenwood product entirely. Either way, it's worth flagging as a discrepancy in the period record.
No original price, no user reviews, and no repair history have survived in the usual places. The KF-8011 is documented primarily through its owner's manual and database listings — a capable, unremarkable tuner from a solid series, remembered mostly by collectors who appreciate the Lab line's clean aesthetic and dependable engineering.
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