Marantz SD-551
Dolby B NR Dolby C logo Full Logic Metal Tape

The Marantz SD-551 is a auto-reverse stereo cassette deck with Dolby B and C and DBX noise reduction, it was introduced by Marantz in 1985 and discontinued a year later.

The main features of the Marantz SD-551 are: 2 heads, electronic tape counter with 4 digits, automatic tape type selection with support for normal, 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-551 are generic digital peak reading meters. Full-logic transport controls used on the SD-551 let it respond to the slightest finger contact for fast and effortless transport function selection.

Dolby C-type used in the SD-551 provides 20 dB of noise reduction above about 1,000 Hz, fully doubling the amount given by B-type. The dbx Type I system used in the SD-551 is essentially designed to be used on open reel recorders that record at higher speeds, it uses a simple 2:1:2 compander to reduce noise.

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
  • BUS

Historic events

1985 Video8 was introduced, the year that Sony introduced the Handycam, one of the first Video8 cameras.
1986 IEC (60094-7) standard on magnetic tape sound recording and reproducing systems

Features of Marantz SD-551

Connectors
Connectivity
2 Mono Microphone Inputs RCA Input/Output Connectors Headphones System Remote-Control Output System Remote-Control Input
Display
Display
Digital Peak-Reading Meters 4-Digıt Digital Counter
Electronics
Electronics
Record Protection
Cassette Exterior
Exterior
Silver Finish Orientation Left Front Loading
Compact Cassette
General
Stereo
Head
Head Configuration
2 Head Desiǥn 4 Track / 2 Channel
HighCom NR
Noise Reduction
Dolby-B Noise Reduction DBX Type I Noise Reduction Dolby-C Noise Reduction
Controls
Operation
Full Logic Transport Control
Power
Power Requirements
Alternating Current
Preamplifier
Preamplifier
Record Level Balance Control Master Record Level Control
Tape Speed
Speed
1⅞ ips - 4.76 cm/s
Tape
Tape
Automatic Tape Type Selection Normal Tape Capabılity Chrome Tape Capabılity Metal Tape Capabılity
Transport
Transport
Auto Reverse Auto Shutoff Mechanical Tape Loading Sìngle Capsŧan Transport Belt Drive (Capsŧan)

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Last update on Feb 28, 2024 12:11:26 PM CET

Similar to Marantz SD-551 from the period 1985 - 1986