copied from http://www.sulit.com.ph/index.php/view+classifieds/id/1626629/For+Sale+%3A++Vintage+ADCOM+GCD-300+Analog+CD+Player
ADCOM GCD-300 (120 Volts)
ADCOM'S Sound Window Frequency Contour Selector
Research indicated that the sound quality of many vocal and instrumental CDs 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 CD's can emulate the musicality of the finest analog recordings maintaining the low noise and dynamic range advantages of digital technology.
The three-position selector is located on the rear panel of your Compact 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 the most musical instruments. This position will help to relieve the harshness and glare found in many instrument recordings.
Specifications :
AUDIO
Number of Channels2
Frequency Response5-20,000 Hz +/- 0.5 dB
Dynamic Range92 dB (IHF-A)
Signal to Noise ratio 95 dB (IHF-A)
Harmonic Distortion0.004% (at 1 kHz)
Separation92dB (at 1 kHz)
Wow / FlutterLess than measurable limits (+/- 0.001% W. Peak)
Output Voltage2.0 V
DISC USEDCompact Disc
Playing Time Approx. 60 minutes / one side
Diameter120 mm
SIGNAL FORMAT
Sampling Frequency44.1 kHz
Quantization Number16 bit linear / channel
Transmission Bit Rate4.3218 Mb/sec
PICK-UP
System Object lens drive system optical pick-up
Object Lens Drive System2-Dimensional Parallel Drive
Optical SourceSemi-conductor Laser
Wavelength780 nm
GENERAL
Power RequirementsAC 120V, 60Hz
Power Consumption12 Watts
Dimensions (WxHxD)17-1/8"(W) x 3-1/4"(H)x10-3/8"(D)
Weight9.50 pounds
Date ManufacturedDecember 1985
Made in Japan
Very nice sounding CD Player. Unit is used but in very good condition. All switches, lights, buttons, and mechanisms function properly. It has some scratches but looks very good for it's age. Remote Control Not Included. I've seen one being sold for less than $30.00. Copy of Owner's Manual.
copied from http://www.sulit.com.ph/index.php/view+classifieds/id/1626629/For+Sale+%3A++Vintage+ADCOM+GCD-300+Analog+CD+Player
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