Akai GX 650D reel-to-reel tape recorder. Classic Vintage. Fully revitalized.
Akai was founded by Masukichi Akai and his son, Saburo Akai in 1929 in Tokyo. The word “Akai” in Japanese means “red”, which of course found a reference in the color of the brand’s logo. In the 1940s, the company produced music and audio equipment. The expanding range of the company included originally reel-to-reel tape recorders, cassette recorder, audio amplifiers, video cassette recorder and speakers, followed by CD, DVD and mp3 players. Some of the products were sold in the United States under the brand of Roberts, A & D in Japan and Tensai and Transonic Strato in Western Europe. At the end of the 1960s, Akai and Tandberg introduced an innovative way of recording sound that allowed recording a wider range of high frequencies. In 1984, a new branch of the company called Akai Professional was created, producing electronic musical instruments. However, in the 90s, the company reduced its range of Hi-Fi equipment. At the end of 2004, Akai Corporation was taken over by Grande Group and Akai Professional by Numark Industries due to bankruptcy.
The GX-650D was launched by AKAI in 1976. It is a tape recorder equipped with a highly efficient Closed Loop Double Capstan AC Servo motor system and the famous GX glass and ferrite heads featuring a special design that eliminates audio fading and loss of treble, improves sensitivity and provides a more dynamic range. Additionally, the signal-to-noise ratio was improved and distortion minimized. The GX-650D is a very large, extremely stable structure, distinguished by many professional solutions. It can work with the so-called “slow studio speed” of 15 tape, as well as 7-1/2 and 3-3/4 ips.
The new enlarged enclosure has been fully revitalized, made of rosewood, the wood finish is Chinese oil produced from natural oils and turpentine-based beeswax.
The device has been fully reviewed and serviced.
– cleaning and adjustment of the heads
– lubrication of mechanics and setting the capstan engine
– replacement of transistors for low-noise ones (PCB amp)
– degaussing and calibration of the heads (Akai demagnetizer)
– cleaning and adjustment of breaks
– cleaning of potentiometers
– replacement of the counter belt
– alignment of heads
– audio track calibrated for the new BASF LPR 35 tape
– measuring and replacement of capacitors
– correction of engine clearances
– factory speed setting
– new aluminum legs
– new RCA terminals
– two signal cables included
– two Akai aluminum spools with tape included
– Akai nab adapters included
– Maxell UD tape with aluminum spool included
Collector’s item. The device is in perfect condition!
– 4-track, 2-channel, stereo / mono
– heads – recording, playback, erasing
– engine – 2 x drive and 1 x capstan
– roll size – 10,5-inch
– belt speed – 3 3/4 – 7 1/2- 15 ips
– noise and flutter – 0,04% (15 ips)
– frequency response – from 30 Hz to 30 kHz (15 ips)
– signal-to-noise ratio – 58 dB
– total harmonic distortion – 0,4%
– input – 80 mV (line), 0,3 mV (microphone)
– output: 0,775 V (line)
– dimensions – 57 cm (height), 48 cm (width), 22 cm (depth with nab adapters)
– weight 30 kg
– Japanese production from 1976/79