Kenwood

The Trio brand that became a hi-fi empire

History

Kenwood Corporation was founded in Nagano Prefecture, Japan in 1946 as the Kasuga Radio Co., Ltd. by Bill Kasuga, George Aratani, and Yoichi Nakase. The company initially produced radio parts before releasing its first consumer product, the A-8 tube amplifier, in 1951.

The company name was changed to Trio Corporation in 1960, and products were exported under the "Kenwood" brand name—chosen to evoke a sense of quality and the American market. The name combined "Ken" (a common Japanese name meaning "wise") with "wood" (suggesting reliability and naturalness).

The 1960s saw Kenwood establish itself as a major Japanese audio manufacturer. The company produced innovative tube and early solid-state equipment, including the famous Trio-Kenwood amplifiers that built the brand's reputation.

The 1970s marked Kenwood's golden era. The company released legendary receivers including the KR-8050, KR-9050, and the ultimate Model 600 (1978), Model 700 (1978), and Model 800 (1979). These "Supreme" series components featured massive construction, dual power supplies, and power ratings that dwarfed competitors.

The KA series integrated amplifiers, particularly the KA-9100 (1977) with 90 watts per channel, became classics for their combination of power, features, and value. Kenwood also produced exceptional tuners including the L-1000T (1980), considered by many the finest analog tuner ever made.

Today, Kenwood is part of the JVC Kenwood Corporation, continuing to produce consumer and professional audio equipment.

Key Facts

Fact Detail
Founded 1946, Nagano Prefecture, Japan
Founders Bill Kasuga, George Aratani, Yoichi Nakase
Original Name Kasuga Radio Co., Ltd.
Export Brand Kenwood (from 1960)
Golden Era 1970s Supreme series
Current Status Part of JVC Kenwood

Legendary Products

Kenwood Model 600/600T (1978)

Kenwood's statement receiver, delivering 150 watts per channel with dual mono construction, massive power supplies, and comprehensive features. The matching 600T tuner made this a system that could compete with separates costing much more.

Kenwood KA-9100 (1977)

The flagship integrated amplifier of the classic KA series. With 90 watts per channel, phono stages for MM and MC cartridges, and exceptional build quality, the KA-9100 represents the pinnacle of Kenwood integrated design.

Kenwood L-1000T (1980)

Arguably the finest analog FM tuner ever produced. The L-1000T featured discrete circuitry throughout, exceptional sensitivity and selectivity, and the famous "Flywheel" tuning mechanism. It remains a benchmark for FM reception.

Kenwood Supreme 700M (1979)

Monoblock power amplifiers delivering 300 watts each into 8 ohms. These massive amplifiers used dual toroidal transformers and represented Kenwood's ultimate statement in amplification.

Sound Signature

Kenwood's vintage gear has a sonic character that rewards careful listening: detailed, controlled, and surprisingly refined for a brand that was often marketed on power specs alone. The Supreme series components — particularly the Model 600 receiver — deliver an analytical clarity that sits closer to Yamaha's precision than Sansui's warmth. The bass is deep and tight with excellent definition, and the midrange is transparent enough to reveal subtle recording details without becoming clinical or cold.

The KA-9100 integrated amplifier is where Kenwood's sound really shines. At 90 watts per channel, it has enough power to drive demanding speakers effortlessly, and the phono stages (both MM and MC) are genuinely excellent — many turntable enthusiasts consider the KA-9100's phono section competitive with standalone phono preamps costing significantly more. The L-1000T tuner deserves special mention: widely regarded as one of the finest FM tuners ever built, it extracts a level of detail and stereo separation from FM broadcasts that most people didn't know was possible. Kenwood's engineering team clearly prioritized measured performance, and the listening experience confirms it.

Collecting Kenwood

The Supreme series is where the serious money goes. The Model 600 receiver and matching 600T tuner represent Kenwood's ultimate statement, typically commanding $1,500-3,000 for the receiver alone. The Model 700 and 800 are even rarer. The Supreme 700M monoblocks — 300 watts each — are genuine exotica that surface infrequently and always generate excitement. For more accessible collecting, the KA-9100 integrated is a perennial favorite at $400-900, offering flagship-level sound in a single chassis.

The L-1000T tuner has its own devoted following among FM enthusiasts — clean examples fetch $600-1,200, and they're worth it if you have good FM reception in your area. The famous flywheel tuning mechanism is a tactile joy that digital tuning has never replicated. Kenwood's mid-range receivers from the 1970s, like the KR-8050 and KR-9050, offer outstanding value in the $300-700 range — they're built like tanks and sound considerably better than their original price points suggested. When evaluating any vintage Kenwood, test the protection relay carefully (it should engage cleanly without repeated clicking) and cycle through all inputs. Kenwood's build quality means most units age well mechanically, making them excellent candidates for a first vintage system.

Competitors & Comparisons

Kenwood vs Pioneer: Both powerful; Kenwood more analytical

Kenwood vs Sansui: Both Japanese giants; Kenwood more features, Sansui more warmth

Kenwood vs Marantz: Similar quality; different sonic signatures

Models

Receivers, Amplifiers

Amplifiers

Cassette Decks

Cassette Decks

Equalizers

Receivers

Speakers

Tuners

Other Models