The Nakamichi System One is peak late-’70s Japanese hi-fi cool—a beautifully matched separates system that shows just how serious Nakamichi was about sound long before they became cassette legends. Designed as a cohesive stack rather than random components, System One delivers a sound that’s clean, dynamic, and effortlessly musical, with that unmistakable Nakamichi precision and refinement. Everything feels intentional: the minimalist industrial design, the silky controls, and the way the system presents music with clarity and balance rather than brute force. It’s understated, elegant, and quietly confident—hi-fi that doesn’t shout, but absolutely knows what it’s doing. A true collector’s setup that captures Nakamichi at the moment they were becoming something special.
Production
1975-79
Condition
9/10
Serial No.
1101616 / 4201365 / 02401 / 4102071 / 4105352
Orig. MSRP
$1850
Restoration
Factory Specs
The System One is a unique concept.The unitizing of a group of no-compromise products to form a nucleus around which an ultimate music system can be built is a concept several years ahead of its time, and clearly Nakamichi. The System One Rack with built-in Program Timer is simple to assemble and enjoy. The included Program Timer is a sophisticated device capable of many functions. It is the result of the latest MOS IC technology and features all-electronic control as well as an LED type display. The timer allows unattended recording of radio broadcasts and sleeping or waking to radio or tape in addition to functioning as a very accurate digital clock.
620 AMPLIFER
Power output: 100 watts per channel into 8Ω (stereo)
Frequency response: 5Hz to 100kHz
Total harmonic distortion: 0.005%
Damping factor: 100
Signal to noise ratio: 120dB
Semiconductors: 3 x ICs, 46 x transistors, 41 x diodes
Dimensions: 15.75 x 7.44 x 9.76 inches
Weight: 27.56 lbs
630 FM TUNER PREAMPLIFER
Frequency response: 20Hz to 50kHz
Total harmonic distortion: 0.004%
Input sensitivity: 2mV (MM), 100mV (line)
Signal to noise ratio: 80dB (MM), 100dB (line)
Output: 400mV (line), 1V (Pre out), 5V (Pre out MaxDimensions: 15.75 x 6.69 x 9.33 inches
Weight: 15.43 lbs
6OO II CASSETTE DECK
Type: 2-head, single compact cassette deck
Heads: 1 x Record/Playback (Crystalloid Super Head), 1 x Erase
Tape Speeds: 4.8 cm/s (3-3/4 ips)
Tape Types: Type I (Normal), CrO2 (Chrome), Metal
Noise Reduction: Dolby B, Dolby C
Frequency Response: 20Hz - 20kHz (Metal tape)
Signal-to-Noise Ratio (S/N): 68dB (Dolby C) / 70dB (Dolby C)
Wow & Flutter: 0.06%
Total Harmonic Distortion (THD): ~1.0% - 1.2%
Motors: 1 x Reel, 1 x Capstan, 1 x Mechanism
Features: Manual Tape Type Selection, Manual Record Level/Bias, Test Tone Generator, 4-Digit Counter, Auto Stop.
The History of Nakamichi
Nakamichi was founded in 1948 by Mr. Etsuro Nakamichi, starting from a small research institute in Tokyo, Japan that provided R&D for major brands, government entities, universities and organizations. Since then, it has established a reputation for high-end source components, like tape decks and CD...
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Liner Notes
Nakamichi's 620 Complete Mirror design brings a level of performance to class B amplifiers that was formerly associated only with class A amplifiers.The 620 is closer to a pure class B amplifier than anything else that has gone before. The first stage of the 620 is a differential amplifier with "current mirror" loading. The final section of the amplifier is a four stage push-pull circuit.All four stages are full complementary direct coupled, and each stage employs a unique double NPN/PNP combination for the positive and negative halves. This design eliminates the errors inherent in even the most carefully matched pairs of NPN/PNP output devices. These errors, furthermore, are eliminated without the use of bias diodes, bias adjustments and high idle currents. The 620, in fact, idles at approximately 1/20 the current of conventional class B power amplifiers of comparable output power. This new approach takes full advantage of class B efficiency with the freedom from switching and crossover distortions that was once thought possible only with class A amplifiers.
The 600Ⅱ is an updated version of the Nakamichi 600 two head cassette console, and was produced from 1978 to 1979. The 600Ⅱ uses a new crystalloid super head with a 0.9 micron gap, which allows recording and playback at 20 kHz. Other features include Dolby B noise reduction, a 19kHz multiplex filter for FM radio recording, Type Ⅰ and Ⅱ (EX, SX) tape selection with manual record and bias adjustments, and test tone generator. It uses a precise mechanical transport with a sensor for tape end auto-stop, is capable of auto-play on power on, has a memory stop function, and will also stop and release the transport on power-off.
Shipping
To ensure safe arrival, we often use private couriers. These are transporters in Sprinter Vans or pulling covered trailers often moving art and antiques across the country. Absolutely the safest way to ship short of you picking it up yourself. This piece ships to the contiguous United States for a flat rate of $380, which includes our packaging and our insurance. Of course, we'll ship anywhere in the world, just drop us a line and we'll give you an estimate – even if you're just curious.
Stock No.
9257407414493
