AKAI GX-630D Manufacturer's Description
Hi-Fi Performance
Stereo record and playback. GX Head, AC Servo Motor, Direct Capstan Drive System Wow and Flutter reduced to 0.06%, Distortion less than 0.5%, S/N Ratio better than 57 dB.
Recording and Playback heads
As is well known, the core of Akai's GX Head is made of crystal ferrite and is mounted and set in glass. The superior magnetic properties of the head material and special processing allowed the formation of a perfectly lineal shallow head gap, an acute head surface angle contour, and focusing of the magnetic field into a sharp oblong radius. This focused field system eliminates undue equalization, minimizes high frequency loss, and achieves a wider dynamic range. Further, sound drop-out is eliminated, head-to-tape contact and signaLto-noise ratio improved, and the hardness of the head materials provide dust free and wear free characteristics for longer lasting performance. The GX-630D exhibits a clear frequency response range to 25,000 Hz with Akai LN-15G-7 Tape.
Three motor drive system
This model employs a 3 motor drive system with a new CFG (center pole generated) AC Servo Motor for direct capstan drive. The quality of this outstanding motor plus the elimination of rubber belts and flywheels results in the realization of a 0.06% Wow and Flutter factor. Two eddy current outer rotor motors complete the drive system for completely stable performance and excellent tone quality. Impedance Roller and Tension Levers also add to tape travel stability.
10-1/2" Reel capacity
A Reel Size Selector and standard accessory 10-1/2" reel hub adapters facilitate the use of 5, 7, or 10-1/2" reels. Further, this model features "quick tension" wherein ideal take-up and back tension is applied to the reels at the beginning of tape start for smooth operation regardless of reel size.
Feather-touch controls
Feather-touch Full Direct Function Change Control for speedy mode change. This feature includes direct function change to recording mode for easy add-on recording. The Automatic Stop/Tension Arm drops at the end of the tape, activating an automatic stop mechanism which completely stops reel movement for operating safety. When Pause Mode is effected, the tape remains in contact with the heads and the pinch roller separates from the capstan only slightly so that when the Pause Lever is released, re-start is fast and smooth. Pause Control is especially convenient for editing tape.
Inputs and Outputs
A built-in mic-line mixing circuit and independent Microphone and Line Input Level Controls facilitate easy sound mixing from separate sources. A Tape/Source Monitor Switch enables comparison of source signals with the recording being made for more professional recording results. Output level control can be adjusted to correspond with amplifier input enabling connection with any amplifier. Jack for remote control of all operating functions as well as absentee recording with optional accessory Remote Control Unit RC-17, a Tape Selector Switch for use of Low Noise or Wide Range Tape, and a convenient lift-up type head cover for easy head block accessibility.
Miscellaneous
I read the Operator's Manual of this fine audio equipment. The front cover give but one warning important enough to be read before all other warnings. Warning: To prevent fire or shock hazard, do not expose this appliance to rain or moisture. I am correct in my assumption that I cannot play the greatest opera in the rain.
AKAI GX-630D for sale
AKAI's Legacy in High-Fidelity Audio and Reel-to-Reel Innovation
AKAI, a prominent Japanese audio company founded in 1929, became a pioneer in high-fidelity audio technology during the 20th century. Known initially for its expertise in electronics and consumer goods, AKAI revolutionized the reel-to-reel market by focusing on precision engineering and innovative designs. The company’s dedication to pushing the boundaries of tape recording technology led to the introduction of the Glass and X’tal Ferrite (GX) heads. These tape heads were a breakthrough, offering remarkable durability, enhanced audio fidelity, and reduced wear on tapes compared to conventional designs. This innovation established AKAI as a significant player in the reel-to-reel space.
One of the company’s standout products, the GX-630D, showcased AKAI’s commitment to producing robust and high-quality machines for home and studio use. It was celebrated for its solid construction, accurate sound reproduction, and advanced features that catered to serious audio enthusiasts and professionals alike. AKAI’s developments not only defined the reel-to-reel market but also shaped the broader direction of analog recording. By the 1970s, AKAI’s products were synonymous with high-performance audio, bridging the gap between audiophile-grade sound and accessible consumer technology, and leaving a lasting impact on the world of magnetic tape recording.
