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What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Akai GX 260D


The GX 260D means the machine is fitted with Akai's unique Glass and Crystal Ferrite head. This head is completely unique to Akai. The core of the head is  a "single crystal" gem set in pure glass of terrific hardness. Because the gem set in pure glass of terrific hardness. Because the gem is a single crystal, it has no composite particles that can break off and damage he head. (Inn a way, it's rather similar to the jewel action in a watch - except that Akai would be the only watch - maker to use it.)
So, the head remains wear-free for life. In fact, Akai guarantee it. If the GX head on your Akai machine wears out in normal use during the lifetime of the machine, we will repace it without charge.
And in the meantime, the GX head gives you outstanding performance because the head and the tape are kept in perfect contact at all times - even high frequency distortion is very greatly reduced.

The GX 260D has four heads - 2GX recording/ erase heads and 2 GX playback heads. It features automatic or manual revers for both recording  and playback.
It has 3 motors - one self-lubricating hysteresis synchronous capstan drive motor, two eddy-current outer-rotor reel drive motors. The advantage of the centre capstan drive motor is that it ensuress identical performance in both tape directions.
The GX 260D offers you line output  level control. It lets you add echo effect to any recording. And, of course, it has all the facilities for sound-on-sound, sound-with-sound, and microphaone/line mixing.
There's also a yape/Source montor,  a Tape Selector Switch and Automatic  shut-off.

Specifications:
Track System:  4-track, 2-channel stereo/monaural
Reel Capacity:  up to 7" reel
Tape Speed:  7-1/2 and 3-3/4 ips
Wow and Fluter:  less than 0,06% WRMS at 7-1/2 ips; less than 0,1% WRMS at 3-3/4 ips
Frequency Response: 
Low Noise Tape :
30 - 26,000 Hz (±3 dB) at 7-1/2 ips
30 - 20,000 Hz (±3 dB) at 3-3/4 ips
Regular Tape :
30 - 23,000 Hz (±3 dB) at 7-1/2 ips
30 - 18,000 Hz (±3 dB) at 3-3/4 ips
Distortion:  less than 1,2% (1,000 Hz, 0 VU)
Signal-to-Noise Ratio:
Activated Tape Selector Circuit :  Better than 57 dB
Inactivated tape Selector Circuit :  Better than 54 dB
Erase Ratio Cross-Talk:
Mono :  better than 60 dB
Stereo :  better than 45 dB
Bias Frequency:  100 kHz
Heads:  two GX recording/erase combination heads, two GX playback heads
Motors: 
One :   4/8-pole self-lubricating hysteresis synchronuous capstan drive motor;
Two :  Eddy-current outer-rotor reel drive motors
Fast Forward / Rewind Time:  75 sec using 1200 ft tape
Output Jacks:
Two Line :  1,23 V, 0 VU/100 Ω (required load impedance more than 20 k Ω)
One Phono :  30 mV/ 8 Ω
Input Jacks:
Two Line :  50 mV
Two Microphone :  0,3 mV/4,7 k Ω
DIN Jack:  0,5 V/25 mV
Power Requirements:  100 V to 240 V AC, 50/60 Hz
Dimensions (W x H x D):  17,5 " x 18,6" x 8,9"
Weight:  45,8 lbs

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