Marantz SD 4020
Dolby B NR Metal Tape 3 Head

This Marantz SD 4020 is a stereo cassette deck with double Dolby B noise reduction, it was first sold by Marantz in 1980 with a manufacturer suggested retail price of USD $435.

The main features of the Marantz SD 4020 are: 3 discrete heads and off-tape monitoring, mechanical 3 digit tape counter, manual tape type selection and capable of handling normal, chrome, ferro-chrome and metal tapes, belt driven single-capstan transport.

Typical front loading cassette deck with the cassette compartiment located on the left side of the deck. Tape eject is operated mechanically and the cassette needs to be placed with the side to be played facing forward in the cassette well.

Level meters used on the SD 4020 are generic digital peak reading meters with multi-color indication to provide visual saturation level of tape. Mechanical transport controls for reliable SD 4020 transport function selection. 9,5 cm/s faster recording/playback speed used in the SD 4020 offers extended frequency response, increased dynamic range and transient response. SD 4020.

The Dolby-B system reduces tape hiss on tapes recorded on the SD 4020 by as much as 10 dB at the highest frequencies. The three-head configuration of the SD 4020 requires a Double Dolby system, one for recording and one for playback. The 19kHz multiplex pilot slgnal present in FM stereo broadcasts can cause false triggering of the noise reduction system. The switchable MPX filter of the SD 4020 filters out the pilot signal, and assuring proper Dolby processing of FM stereo programs.

To make live recordings this deck has 2 microphone inputs to connect microphones with a jack connector. For undisturbed listening a jack connector for a pair of stereo headphones is supplied. Connection to other audio components for plaback can be achieved by a RCA cable and recording from a source by a RCA cable.

Compact Cassette
  • Sendust Alloy
  • 3 Head System
  • Peak Level Display

Historic events

1980 Dolby C Noise Reduction introduced by Dolby Laboratories.

Features of Marantz SD 4020

Connectors
Connectivity
2 Mono Microphone Inputs RCA Input/Output Connectors Headphones
Display
Display
3-Digıt Mechanical Counter Digital Peak-Reading Meters Multi Color Peak-Reading Meters
Cassette Exterior
Exterior
Orientation Left Champagne Finish Front Loading
Compact Cassette
General
Stereo
Head
Head Configuration
3 Head Desiǥn 4 Track / 2 Channel Seperate Record and Playback Heads
Indicators
Indicators
Record
HighCom NR
Noise Reduction
Dolby-B Noise Reduction MPX Filter Double Dolby NR Circuits
Controls
Operation
Record Mute Mechanical Transport Control Real-Time Tape Monitoring
Power
Power Requirements
Alternating Current
Preamplifier
Preamplifier
Microphone Level Adjust (Left/Right) Individual Input Level Controls
Tape Speed
Speed
1⅞ ips - 4.76 cm/s 3¾ ips - 9.52 cm/s
Tape
Tape
Manual Tape Type Selection Ferro-Chrome Tape Capabılity Normal Tape Capabılity Chrome Tape Capabılity Metal Tape Capabılity
Transport
Transport
Servo Controlled Transport Auto Shutoff 1x Motor Mechanism Mechanical Tape Loading Sìngle Capsŧan Transport Belt Drive (Capsŧan)

Similar to Marantz SD 4020 from the period 1980

ebay Marantz SD 4020 related items currently for sale Last update on Sep 22, 2021 3:15:26 PM CEST