Sony - MDS-E55 Minidisc deck

The Sony MDS-E55 is a professional, rack-mountable MiniDisc recorder and player that was introduced in the late 1990s for studio use and broadcast environments.

Unlike consumer models from that era, this unit is designed for intensive use and equipped with features specifically intended for audio engineers and installations.

Key specifications & features:
Form factor: 19-inch rack-mountable (2U height), ideal for studios or live racks.

Equipped with Sony's Wide Bit Stream (20-bit) technology and an integrated sampling rate converter.

Connectors:
In addition to the standard analog phono (RCA) and digital optical/coaxial connections, it features a parallel interface for external remote controls and a Control-S connection.

Convenient studio features:
Auto Pause / Auto Cue: Automatically stops at the beginning of the next track.
Time Machine Recording: Records audio up to a few seconds before pressing the record button, so you never miss the start of a take.
Music Sync: Automatically starts recording as soon as an audio signal comes in.

As an extra, you receive 3 good Sony MiniDiscs included, some of which may contain music.

Specifications:
General Specifications
System: MiniDisc digital audio system
Laser: Semiconductor laser (λ = 780 nm)
Rotation speed: 400 rpm to 900 rpm (CLV)
Error correction: ACIRC (Advanced Cross Interleave Reed-Solomon Code)
Sampling frequency: 44.1 kHz
Built-in
Sampling Rate Converter: Accepts 32 kHz and 48 kHz (automatically converted to 44.1 kHz)
Audio compression: ATRAC (Adaptive Transform Acoustic Coding) — 20-bit Wide Bit Stream processing
Channels: 2 channels (stereo) or 1 channel (mono for extended recording duration)
Audio performance:
Frequency range: 5 Hz to 20,000 Hz (±0.5 dB)
Signal-to-noise ratio (S/N): Over 96 dB during playback
Wow and flutter: Below measurable limit

Connections & Interfaces
Analog Inputs: RCA/Phono (unbalanced), nominal input -4 dBu
Analog Outputs: RCA/Phono (unbalanced) + Adjustable headphone output (6.3 mm jack) on the front
Digital Inputs:
1x Optical (Toslink) 1x Coaxial (RCA)
Digital Outputs: 1x Optical (Toslink)
Remote / Control ports:
Parallel interface (D-Sub 15-pin): For external studio-starts and relay control
Control-S: For wired remote controls
(no remote included)

Physical Characteristics:
Dimensions: 482 x 91 x 286 mm (W x H x D) — conforms to standard 19-inch rack size (2U height)
Weight: Approximately 3.5 kg
Power supply: AC 230V, 50/60 Hz (European version)

Carefully packaged and insured shipping.