Akai GX-400D Operator's Manual page 2

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ALL GX (glass & single crystal ferrite) HEADS
Akai has equipped this model wfth its new and amazing GX
Heads to bring you unequalled open reel high fidelity
sound. With the symmetrical head block lay-out and dual
capstan drive system of this model, an undistorted wide
frequency response range covering 30,000 Hz für com-
pletely professional performance. With the GX Heads, a
wider dynamie range and excellent signal-to-noise ratio are
also attained. These accomplishments are contributable to
head materials, superior processing technique, and a
"focused-field" recording system. The core of these extra-
ordinary heads are made of single crystal ferrite and are
mounted and set in glass. This focused-field recording
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system minimizes high frequency lass and eliminates undue
equalization für perfect recording results.
A.D.R SYSTEM
The GX-400D incorporates Akai's new and unique Auto-
matie Distortion Reduction circuit. This circuit prevents
interference and beat noise from occuring during high input
recording. At input signals over 8,000 Hz where tape is
easily saturated, the selective network of the A.D.R circuit
is automatically activated to change the recording equali-
zation according to input. The result is clear and dis-
tortionless high range playback over an extended frequency
range.