Adcom GCD 300 Owners Manual

Page 2

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ADDENDUM TO THE ADCOM 600 200/300 OWNER'S MANUAL

The following feature has been added to the ADCOM GCD 200/300 compact
disc player subsequent to the printing of the owner's manual.

ADCOH'S Sound Window Frequency Contour Selector

Our research indicated that the sound quality of many vocal and instrumental
One could be greatly improved by introducing corrective frequency contouring
to compensate for the unnatural sonic energy balance in many CDs.

A three-position switch provides a choice of playback response curves which
can be used to improve the spectral balance of those CDs that need it.

As a result, such CDs can emulate the musicality of the finest analog
recordings while maintaining the low noise and dynamic range advantages

of digital technology.

The three-position selector is located on the rear panel of your compact 1
disc player. .

Mid Position
In the mid position the Sound Window Frequency Contour Selector is
not in the audio circuit.

Upper Position
In the up position. the Sound Window Frequency Contour selector }

attenuates the frequencies immediately above the range of the human
voice. This position can be used with any recordings that, due to close
microphone techniques, have a hardness or edge.

Lower Position

In the lower position. the Sound Window Frequency Contour selector
attenuates the frequencies just above the upper end of most musical
instruments. This position will help to relieve the harshness and glare
found in many instrumental recordings.

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