Sony - TC-K630ES, Rare ! Audio-cassette deck

Sony TC-K630ES high-end 3-head stereo cassette deck in black, part of Sony’s renowned and audiophile ES (Elevated Standard) line (circa 1989–1990). Technically in 100% fully working condition (play, record and fast-forward operate perfectly) and visually in neat condition with light signs of use consistent with age.
Thanks to the discrete 3-head design with wear-resistant Laser Amorphous heads, direct NAB monitoring during recording is possible. The transport features three motors and a quiet, motorized cassette loading mechanism. Sonically, the K630ES delivers an extremely tight, dynamic and detailed playback with a notably quiet background. Equipped with manual bias calibration, Dolby B/C noise reduction and Dolby HX Pro headroom extension to get the most from every tape.
Specifications
Type: 3-head discrete single compact cassette deck
Model: Sony TC-K630ES
Series: Elevated Standard (ES-line)
Color: black
Track system: 4-track, 2-channel stereo
Tape speed: 4.76 cm/s
Heads: 1x Laser Amorphous recording head, 1x Laser Amorphous playback head, 1x Sendust/Ferrite erase head
Motors: 3 units (1x capstan, 1x reel, 1x mechanism/loading)
Tape types: Type I (Normal), Type II (CrO2), Type IV (Metal) with automatic tape selection
Noise reduction: Dolby-B NR, Dolby-C NR, Dolby HX Pro
Frequency response: 20 Hz – 21,000 Hz (Type IV Metal tape), 20 Hz – 20,000 Hz (Type II CrO2)
Signal-to-noise ratio: 75 dB (with Dolby C, Metal tape)
Wow and flutter: 0.05% (WRMS)
Total harmonic distortion (THD): 1.0%
Features: manual bias adjustment (Bias Cal), real-time digital counter, Peak-Hold level meters, Memory Stop/Play
Connections: Line In (RCA), Line Out (RCA), gold-plated 6.3 mm headphone output with adjustable volume
AC power: 220–240 V AC, 50/60 Hz
Dimensions (W x H x D): 43.0 x 13.5 x 35.0 cm
Weight: approx. 6.9 kg
Manufacturer: Sony Corporation (Tokyo, Japan)