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CD-4 Disc Demodulator CD-400B

CD-4 Disc Demodulator CD-400B; Marantz Sound United (ID = 1968304) Misc CD-4 Disc Demodulator CD-400B; Marantz Sound United (ID = 1968305) Misc
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CD-4 Disc Demodulator CD-400B; Marantz Sound United (ID = 1968304) Misc
Marantz Sound United: CD-4 Disc Demodulator CD-400B [Misc] ID = 1968304 1024x750
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For model CD-4 Disc Demodulator CD-400B, Marantz (Sound United LLC); Vista, CA:
Ebay item no. 301887937715 seller audioperception
Country:  United States of America (USA)
Manufacturer / Brand:  Marantz (Sound United LLC); Vista, CA
Year: 1976/1977 Category: Miscellaneous (Other, Various) - see notes
Semiconductors (the count is only for transistors) Semiconductors present.
Main principle Audio-Amplification
Wave bands - without
Details Hi-Fi equipment
Power type and voltage Alternating Current supply (AC) / 110; 120; 220; 240 Volt
Loudspeaker - For headphones or amp.
Power out
from Model: CD-4 Disc Demodulator CD-400B - Marantz Sound United LLC;
Material Wooden case
Shape Book-shelf unit.
Dimensions (WHD) 210 x 100 x 323 mm / 8.3 x 3.9 x 12.7 inch

A demodulator which reproduces discrete 4-channel sounds from CD-4 records. It is connected between a stereo record player fitted with a CD-4 cartridge and a 4-channel preamplifier. Another CD-4 source such as a 4 channel tape deck can be also be connected. With push buttons switches for Selector (Phono, Aux) and Mode (2 Channel, 4 Channel Auto) and a 'Radar' indicator which is lit when a CD-4 record is playing.  On the back, RCA phono sockets for Phono Left & Right input, for Aux input Front and Rear Left and Right input (connected direct to the 4 channel output), for 2 channel Direct Output, and for 4 channel Front and Rear Left and Right Output, and Right and Left rotary Separation controls. A calibration record is supplied for adjusting the right and left separations.

Frequency Response ref. to RIAA40Hz-12kHz ±1dB
Total Harmonic Distortion at 1kHz 0.1%
Input Impedance100kΩ
Output Impedance5kΩ
Difference Signal 
Total Harmonic Distortion at 1kHz1%
Muting Level-68dBs
Input Level for ±4kHz Lock Range -53dBs
Channel Separationnot less than 20dB

Versions/Power Requirements  
120V AC 50/60Hz
110/120/220/240V AC 50Hz

Power Consumption:  10 watts

Designed in USA, Produced in Japan

Net weight (2.2 lb = 1 kg) 2.9 kg / 6 lb 6.2 oz (6.388 lb)
Source of data -- Collector info (Sammler)
Mentioned in -- Original prospect or advert (1976-77 Marantz Hauptkatalog catalogue)
Literature/Schematics (1) - - Manufacturers Literature (Service manual Marantz CD-400B)

Model page created by a member from A. See "Data change" for further contributors.

All listed radios etc. from Marantz (Sound United LLC); Vista, CA
Here you find 537 models, 530 with images and 85 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.