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Akai GX-77

Stereo Reel to Reel Tape Recorder (1981-82)

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Akai GX-77


Track system: auto reverse, 4-track, 2-channel, stereo system

Heads: 2 x GX record, 2 x GX playback, 2 x erase

Motor: 2 x reel drive, 1 x capstan

Reel size: up to 7 inch reel

Tape speeds: 3 34  7 12 ips

Wow and flutter: 0.03% (7 12 ips)

Frequency response: 25Hz to 33kHz (7 12 ips)

Signal to Noise Ratio: 63dB

Total harmonic distortion: 0.5%

Input: 70mV (line), 2mV (DIN)

Output: 0.775V (line), 0.3V (DIN)

Dimensions: 440 x 244 x 227mm

Weight: 17kg

Accessories: connection cords, empty reel


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Reviewed May 18th, 2019 by

I have this Akai on it's way from a man who has had this RTR since new in 1982 I love the look of this unit I like the fact it looks like a twin cassette deck they stopped making this modal in 1985 it was the last RTR that Akai ever made as cassette tape took over until it was replaced by minidisc in the 90's I still say Minidisc was the best home recording format that ever came out now back to RTR a lot of studios are closing & the RTR are being sold on to the public & like cassette it's making a come back I love the fact that it's a hands on formats unlike the cold download where you get no words covers but most of all somthing to hold in your hand I feel they will never truly get rid of RTR Cassette Minidisc

Reviewed Sep 11th, 2015 by

I'm really excited with my Akai very nice RTR

Reviewed Nov 28th, 2014 by

Thank you! Very useful and interesting information. Learned a lot about my favorite AKAI GX77!

Reviewed Mar 05th, 2014 by

a small brother of GX-747, both has 25Hz to 33kHz (7 1⁄2 ips) and BIAS adjustment and the rest are details/comments...



re: GX-77

My GX-77 has been unpacked after many years, and is now waiting for restoration. Loved it back in the day, and want to get it back to its past glory. I expect I need new belts, for starters. Suggestions for sources, and any other likely parts needed before I open it up? I have downloaded the service manual to keep me out of (I hope) serious trouble.

Update 12/26/19 - I opened up the cabinet to the level that I could see the guts (with no visual evidence of belt breakage or other anomalies), and tried several cycles of power and load up/down commands. At first, nothing happened...the play forward light was illuminated, and I could get solenoids to click, but no other physical response. After several tries, it decided to work, seemingly with no action on my part. I then loaded a tape, connected to the control amp, and enjoyed three hours of musical bliss. I did observe, however, when the tape had reversed and played back to the "end" (beginning), the loader did not auto-return to the down position, and controls seemed to be locked again. After I pushed FFWD, it dropped the loader as intended. With all of that, is there a maintenance step I need to do to keep it working and prevent hiccups?

re: GX-77

Hi , I have this beauty too. When 5-10 minutes left on reel, reel motor gets "tired" and the machine stops. Any ideas?

re: GX-77

I'm sure you have this fixed by now. I had a similar issue. I replaced all 3 belts (2 reel belts and the main capstan belt). That fixed all the issues.

re: GX-77


When the reel gets "tired", does the servo capstan motor (tape speed regulator) continue to feed tape to a non-rotating take-up reel? Or, does the take-up reel sustain tension on the tape with the capstan motor stopping tape feed?

This condition is a known issue with this model deck. There are some good repair videos on YouTube addressing this condition.


This website is not affiliated with or sponsored by Akai. To purchase GX-77 spares or accessories, please contact the company via their website or visit an authorised retailer.