Nikko
Nikko was a Japanese hi-fi maker whose components were sold from the late 1960s to the early 1990s, best known for its Alpha power amplifiers and Beta preamplifiers. The brand no longer exists. We carry Nikko power amplifiers, preamplifiers, stereo receivers, tuners and equalizers. We’ve had more than 35 Nikko listings so far. Every used Nikko here is inspected, tested and serviced as required, then photographed in-house and covered by our Bumper-to-Bumper Warranty and Perpetual Trade-Back Program. Don’t see the model you want? Tell us on First Dibs and we’ll email you when one arrives.
Our best-selling Nikko models so far: the Beta 30 preamplifier and the Alpha 230 power amplifier, followed by the NT-700 II tuner and the Alpha 130 power amplifier.
The Nikko story
One of Nikko’s first hi-fi products was the TRM-50 integrated amplifier of September 1969, and its STA receivers and FAM tuners followed in the early 1970s.
The Professional Series. From 1977 Nikko sold Alpha power amplifiers and Beta preamplifiers, designed to be paired, alongside NR receivers, Gamma and NT tuners and EQ graphic equalizers.
The end. The last Alpha models date from 1988 to 1991, and Nikko hi-fi ended in the early 1990s. It has no connection with Nikko, the radio-control toy maker.
Which Nikko is which?
Late 1960s to early 1970s: TRM integrated amps, STA receivers and FAM tuners.
Alpha power amps: the Alpha I to VI (1977 to 1982), the Alpha 220 and 440 (1979 to 1983), the Alpha 130, 230, 450 and 650 of the mid 1980s, and later models up to the Alpha 2000 (1988 to 1991).
Beta preamps: the Beta I to V (1977 to 1979), the Beta 20 and 40 (1981), the Beta 30 and 50 (1982) and later models. The Beta 30 was built from 1982 to 1985.
NR receivers: such as the NR-700 of 1981 to 1983, at 40 watts per channel.
Tuners and equalizers: Gamma and NT tuners such as the NT-700 II (1985 to 1987), and EQ equalizers such as the EQII of 1979.
Nikko Alpha 230 Vintage Power Amplifier – 120 WPC
A mid-1980s Nikko Alpha 230 power amplifier, made in Japan: 120 watts per channel into 8 ohms, LED power meters, speakers A/B and a DC input.
✔️ Tested on our bench
✔️ Very good condition
✔️ Covered by Radique Warranty
✔️ Includes Perpetual Trade-Back Program eligibility
✔️ Expertly packed for safe shipping
Nikko Beta 30 Stereo Preamplifier – MM/MC Phono, Made in Japan
An early-1980s Nikko Beta 30 stereo preamplifier, made in Japan, with an MM/MC phono stage, two input selectors, a processor loop and rack ears.
✔️ Tested on our bench, both phono settings included
✔️ Good condition, wear from stacking on the top cover
✔️ MM and MC phono, processor loop, two preamp outputs
✔️ Covered by Radique Warranty
✔️ Includes Perpetual Trade-Back Program eligibility
✔️ Expertly packed for safe shipping
Nikko NR-700 Vintage Stereo Receiver – 40 WPC, Digital Quartz
A nice, clean silver-face Nikko NR-700 digital quartz AM/FM stereo receiver from 1981, made in Japan.
✔️ 40 watts per channel into 8 ohms, 0.04% THD
✔️ Quartz-lock tuner with signal strength meters
✔️ Phono plus three more pairs of analog inputs
✔️ Subsonic filter and loudness switch
✔️ Made in Japan, 1981
✔️ Very good condition, tested on our bench
✔️ Covered by Radique Warranty
✔️ Includes Perpetual Trade-Back Program eligibility
✔️ Expertly packed for safe shipping
Nikko EQ-II 6-Band Stereo Graphic Equalizer Made in Japan
Six sliders a channel at 40Hz, 125Hz, 400Hz, 1.25kHz, 4kHz and 12.5kHz, each with 12dB of boost or cut, and a bypass switch for an instant A/B against the unprocessed signal. 0.01% distortion, better than 100dB signal to noise, 10Hz to 30kHz — it adds nothing of its own. Built in Tokyo between 1977 and 1981. Excellent condition, fully tested.
Nikko EQ-500 6-Band Stereo Graphic Equalizer Made in Japan
Six sliders a channel at 40, 125, 400, 1,250, 4,000 and 12,500 Hz, each giving 12 dB of cut or boost in 2 dB steps. Distortion is 0.01%, signal-to-noise better than 100 dB, response 10 Hz to 30 kHz — it adds nothing of its own. Bypass switch and a pre/post-EQ tape loop. Made in Japan. Cosmetic condition fair; fully tested and working.






































