Kenwood KT-57 (1988–1989)

A rare late-era tuner with digital tuning and no digital chill.

Overview

The Kenwood KT-57 Stereo Synthesizer Tuner was built in a narrow window between 1988 and 1989. By then digital tuning was no longer a novelty but a necessity, and Kenwood did it in a no-nonsense way. The tuner covers FM from 87.5 to 108 MHz and MW (AM) from 531 to 1602 kHz. Owners report that the digital tuning scale locks onto stations with consistent accuracy. There's no remote, no backlit display and no memory for a dozen presets. What it does, it does cleanly.

It's a black box. It measures 420mm wide, 251mm deep and 65mm tall, so it fits into any rack without hogging space. At 2.8kg it's not featherlight, but it doesn't need reinforcement either. The front panel has a single tuning dial, a band switch and a basic LED readout. The KT-57 puts out a solid 600mV on FM, enough to drive just about any preamp or integrated amp. Its 72dB signal-to-noise ratio on FM and 0.70% distortion still hold up for casual listening, especially if you're not chasing the last fraction of audiophile purity.

Owners consistently report good sound quality. They describe it as warm without being muddy and detailed without being clinical, with no harshness in the highs and no flabby bass. The scanning is accurate, the tracking is stable, and the thing just works. That reliability isn't accidental. This was built in the final years of Kenwood's serious analog-digital hybrid phase, when they knew how to wrap solid RF design in a microprocessor shell without losing the musicality.

It's not perfect. The MW sensitivity is a modest 14uV, and with only 25dB of selectivity on AM, strong local stations might bleed through in a crowded band. On FM, the 50dB selectivity and 0.95uV sensitivity are more than competent, especially in urban or suburban settings. The frequency response is rated from 30Hz to 15kHz on FM. That means no ultra-extended highs. The tuner is labeled as having both analog and digital features, likely meaning an analog audio path paired with digital tuning. No available source says anything about the specific circuit topology or component choices.

The KT-57 had a two-year production run in the late '80s and has built a quiet reputation. It was clearly meant to be part of a system. hifi-wiki.com even lists it as a companion to the Kenwood KA-57 integrated amplifier, which suggests Kenwood may have been pushing coordinated setups, even if no official product family hierarchy was ever published. The KT-57 is a mid-tier performer: not entry-level, not flagship. It's the kind of tuner you'd pair with a decent CD player and a belt-drive turntable in a 1989 living room stack.

Specifications

Manufacturer	Kenwood
Production years	1988-89
Tuning Bands	FM, MW (AM)
Tuning Scale	Digital
FM Tuning Range	87.5 to 108 MHz
MW Tuning Range	531 to 1602 kHz
Sensitivity	0.95uV (FM), 14uV (MW)
Signal to Noise Ratio	72dB (FM), 50dB (MW)
Distortion	0.70% (FM), 0.5% (MW)
Selectivity	50dB (FM), 25dB (MW)
Frequency response	30Hz to 15kHz (FM)
Output	600mV (FM), 180mV (MW)
Dimensions	420 x 65 x 251mm
Weight	2.8kg
Supported Modes	AM, FM
Band	AM/FM
Features	Analog, Digital
Color	Black
Power	10 W
Audio Outputs	Stereo L/R RCA

Collectibility & Value

The Kenwood KT-57 trades in a narrow but predictable range: recent eBay listings show units selling between $30 and $68, depending on condition and seller credibility. A Reverb listing from four days prior to research date priced one at $24.99 plus $28.99 shipping, suggesting competition keeps prices grounded. Service manuals are available separately, typically priced between $15 and $20—useful, though no documented common failures or repair patterns exist beyond anecdotal notes about storage-related quirks. Some units arrive with musty odors or surface residue, likely from long-term storage in basements or closets, but cleaning seems to resolve most cosmetic issues. One tested unit was described as needing no further service after cleaning, with all frequencies and save functions operating as intended—reinforcing the reputation for reliability. There’s no data on original pricing, and no known rarity or regional variants, so collectibility hinges entirely on functionality and completeness. It’s not a grail, but it’s a solid, affordable way to add a period-correct tuner to a late-’80s Kenwood stack.

Market Value

┌──────────────────────────────────────────────────────────────────────────┐
│ KENWOOD KT-57                                                   Nov 2026 │
├──────────────────────────────────────────────────────────────────────────┤
│ High      $78                                     Latest             $78 │
│ Median    $45                                     Trend                — │
│ Low       $26                                     Volume           ~2/mo │
├──────────────────────────────────────────────────────────────────────────┤
│   $100 ┤                                                                 │
│        │                                                                 │
│        │                                                        .       .│
│    $57 ┤                    .                                            │
│        │                        .              .  .                      │
│        │.  .      .            .                .                        │
│        │                                 .                               │
│     $0 ┤                                                                 │
│        ├─────────────────────────────────────────────────────────────────│
│    vol │█  █      █         █  ██        █     ██ █             █       █│
│        └─────────────────────────────────────────────────────────────────│
│         2026-02                      2026-05                      2026-07│
└──────────────────────────────────────────────────────────────────────────┘