Nikko EQ-II 6-Band Stereo Graphic Equalizer Made in Japan
$175.00
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.
1 in stock
Nikko EQ-II 6-Band Stereo Graphic Equalizer Made in Japan
A clean, well-built six-band stereo graphic equalizer from Nikko Electric of Tokyo, the EQ-II offers precise, musical frequency control with excellent specifications in a striking black finish — in excellent condition.
The Nikko EQ-II is a straightforward, high-quality graphic equalizer manufactured in Japan from the late 1970s through the early 1980s, and it remains a practical and sonically capable tool for fine-tuning your listening room acoustics. Each channel provides six slider controls at 40 Hz, 125 Hz, 400 Hz, 1.25 kHz, 4 kHz, and 12.5 kHz — covering the full audible range at one-octave-plus intervals with up to ±12 dB of boost or cut per band, enough flexibility to tame a bright room, compensate for speaker placement, or simply tailor the sound to personal taste. The specifications are genuinely impressive for a budget-era component: 0.01% THD, a 100 dB signal-to-noise ratio, and a frequency response extending from 10 Hz to 30 kHz, ensuring the EQ adds no meaningful colour or noise of its own. A bypass switch allows instant A/B comparison between the EQ’d and unprocessed signal, and a tape monitor switch provides added flexibility for system integration.
Key Specifications:
Type: Stereo graphic equalizer
Bands: 6 bands per channel at 40, 125, 400, 1,250, 4,000, 12,500 Hz
Control range: ±12 dB per band
Frequency response: 10 Hz – 30,000 Hz
Total harmonic distortion: 0.01%
Signal-to-noise ratio: >100 dB
Input impedance: 80 kΩ
Features: Bypass switch, tape monitor switch
Years of manufacture: 1977–1981
Country of manufacture: Japan
Finish: Black
Condition: Excellent cosmetic condition, fully tested and working
Dimensions: (Width x Height x Depth) 420 x 92 x 330 mm (16.5 x 3.6 x 13.0 inches)
Weight: 4.9 kg (10.8 lbs)
Made in Japan, this Nikko EQ-II is a clean, practical, and genuinely well-specified six-band graphic equalizer in excellent condition — an excellent and affordable tool for anyone looking to optimize their listening room acoustics or fine-tune their system’s frequency balance with a handsome black-faced component.
Backed by Radique Audio’s 90-day warranty and our perpetual trade-back policy, you can purchase with confidence; asking $175.
| Weight | 12 lbs |
|---|---|
| Dimensions | 17 × 20.5 × 7.6 in |
Related Products
Teac GE-20 2-Channel 10-Band Stereo Graphic Equalizer, Japan
Ten ISO-standard bands per channel from 31.5 Hz to 16 kHz at ±12 dB, with separate left and right sliders and switchable VU metering. Filters at 31.5 Hz and 16 kHz roll off rumble and ultrasonic noise without touching the audible band, and an EQ defeat switch lets you A/B against flat. Made in Japan, 1978; serviced, good cosmetic condition.
Yamaha Q2031 Dual 31-Band Graphic Equalizer – Made in Japan, 2U
Thirty-one bands per channel on ISO third-octave centres, 20Hz to 20kHz, on two fully independent channels — fine enough to pull a single room mode down without touching what sits either side of it. A range switch halves boost and cut to ±6dB for careful work, and the high-pass filters sweep from 20 to 200Hz. Balanced XLR and 1/4-inch throughout, 2U rack. Condition good.
Technics 7-Band Graphic Equalizer – Made in Japan SH-8028
Technics 7-Band Graphic Equalizer – Made in Japan SH-8027
Seven bands a channel — 63 Hz, 160, 400, 1 k, 2.5 k, 6.3 k and 16 kHz — on illuminated red sliders you can read in a dark rack. Two RCA pairs in and out, a built-in mains cord, and an unswitched 150-watt accessory outlet on the back. Made in Japan somewhere between 1980 and 1985. Level 1 serviced here.
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.
