Nikko Alpha 230 Vintage Power Amplifier – 120 WPC
$495.00
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
1 in stock
A mid-1980s Nikko Alpha 230 stereo power amplifier, made in Japan, rated at 120 watts per channel into 8 ohms. It has been tested on our bench and is in very good condition.
What it is
The Alpha 230 is a well-regarded Nikko DC power amplifier from the years when the company was building some of its most serious gear. It is a straightforward, muscular design: a DC-servo amplifier with a variable-bias, non-switching output stage, rated at 120 watts per channel into 8 ohms and 200 watts per channel into 4 ohms, with distortion of just 0.008%.
The front panel is all business. A column of LED power meters reads output from a hundredth of a watt up to 240 watts, a protect lamp watches over the output stage, and A and B buttons switch between two pairs of speakers. There is a headphone jack on the front, and rack-mount ears either side if you want it in a rack.
On the back, a Direct/Normal switch selects the input. Direct is Nikko’s DC input, the one that gives the Alpha 230 its frequency response all the way down to 0 Hz. As a power amplifier it has no volume control of its own, so it pairs with a preamplifier, or with a receiver or integrated amplifier that has preamp outputs.
A well-regarded 120-watt Nikko power amplifier, tested and ready to drive your speakers.
Available for pickup in Kanata, or shipped across Canada and internationally — we have sent equipment to fifteen countries in the past year, each piece packed in-house in 275 lb test double-wall boxes. Live shipping rates for your address are calculated at checkout. Backed by Radique Audio’s Bumper-to-Bumper Warranty and our Perpetual Trade-Back Program. Available for audition by appointment in Kanata.
Nikko Alpha 230 Vintage Power Amplifier Specifications
- Type: stereo power amplifier, DC-servo, non-switching output stage
- Service: tested on our bench
- Power output: 120 watts per channel into 8 ohms; 200 watts per channel into 4 ohms (DIN)
- Frequency response: 0 Hz – 100 kHz (Direct input)
- Total harmonic distortion: 0.008%
- Damping factor: 70
- Input sensitivity: 1 V
- Signal-to-noise ratio: 115 dB
- Meters: LED power display, 0.01 to 240 watts
- Outputs: speakers A and B, headphone jack
- Inputs: RCA, with Direct / Normal switch
- Rack-mount ears
- Made in Japan
- Dimensions: (Width x Height x Depth) 17.3 x 5.4 x 13.5 inches (440 x 138 x 344 mm); 19 inches (482 mm) across the rack ears
- Weight: approx. 29.7 lbs (13.5 kg)
🎚️ Gold Series RCA Interconnects
Our own Gold Series RCA Stereo Interconnect is a shielded, gold-plated stereo pair, in stock and ready to go. It is the cable that connects this to the rest of your system, and it is a straightforward upgrade on the free leads that come in the box with most equipment. 👉
🔌 Speaker Cable, Built on Our Own Bench
We hand-build speaker cable here in any length you need — pick the gauge and the terminations on our Custom Speaker Cable Builder. We also make our own gold-plated banana plugs, spades and pin connectors if you would rather terminate cable you already have. 👉
⚠️ Important Information for International Buyers
This unit is configured for North American 110/120V power. Buyers outside North America will require a step-down transformer and appropriate plug adapter.
✅ Buy With Confidence — The Radique Promise
Backed by Radique Audio’s Bumper-to-Bumper Warranty and our Perpetual Trade-Back Program. When you’re ready to move on, we’ll take it back. That’s the Radique difference.
📦 Watch how we protect your gear — our unboxing video.
📺 Curious about our business? Check out our YouTube channel for behind-the-scenes videos and more!
📞 Questions? Use the Ask a Question button above, or call us at 613-416-9995.
| Weight | 35 lbs |
|---|---|
| Dimensions | 17.5 × 21.3 × 9.4 in |
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.
You may also like…
Radique Audio Gold Series RCA Stereo Interconnect Cable
RCA cables that are kind to vintage jacks: dual RCA to dual RCA, in 0.2, 0.75 or 1.5 m.
- Slim gold-plated plugs with vintage-safe grip pressure
- Dual shielding: aluminum foil and 128-strand braided copper
- Reinforced splitters; 7 mm gold cotton and nylon mesh jacket
- Three lengths, chosen above the Add to Cart button
- 1-year warranty
Custom Speaker Cable Builder
Your specs, your cable: choose the cable, the length and each connector, with live pricing.
- House CCA, House OFC, House Quad, Kimber 4PR or Kimber 4TC
- Banana, spade, pin, small spade or bare wire, chosen for each end
- Bi-wire on Kimber 4PR, Kimber 4TC and House Quad
- Hand-assembled, heat-shrink reinforced and colour-coordinated
- 1-year warranty
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✔️ Condition: Very Good
✔️ Covered by Radique Warranty
✔️ Includes Perpetual Trade-Back Program eligibility
✔️ Expertly packed for safe shipping
