Sony TC-K 870 ES

Data

Sony Single Cassette Deck TC-K870 ES

General:

• Manufacturer: Sony
• Model: TC-K870ES
• Year of manufacture: 1991-92
• Type:Single cassette deck
• Dimensions: 430 x 135 x 350 mm (WxHxD), with side panels 47 cm
• Power: 220 V, 23 Watt (Europe)
• Weight: 6.9 kg
• Remote control: yes, (RM-J701 and others optionally available)
• Price: approx.1000 DM; (600 US $)

Technical data:

• Tracks: 4-track, 2-channel (stereo)
• Dual-Capstan
• Tape speed: 4.8 cm/ s
• Rewind time (C-60): 90 s
• 3 heads: 1 x record, 1 x playback, 1 x erase head
• 3 motors: 1 x Reel, 1 x Capstan, 1 x Aux
• Tape types: Normal I, Cr02 II, Metal IV,
• Noise reduction: Dolby B, C, HX Pro
• Frequency response:
  • Type I: 15- 17,000 Hz

Type II: 15- 20,000 Hz Type IV: 15- 22,000 Hz Signal-to-noise ratio:

• • Type I: 72 dB (Dolby C), 57 dB (Dolby off).

Type II: 74 dB (Dolby C), 59 dB (Dolby off) Type IV: 76 dB (Dolby C), 61 dB (Dolby off)

• Coincidence fluctuation: 0.024 % (WRMS), 0.05% (DIN, weighted), 0.14% (DIN unweighted), for details see Stereo 12/1991, p.46

Distortion factor: 1.0 %

• Input: 77.5 mV (line)
• Output: 0.44 V (line) = -5dBu; @ Dolby Point= 496mV-160nWb/m; @ 0VU Point = 620mV-200nWb/m ; @ 0dBu Point = 775mV-250nWb/m

Special Features:

• Laser Amorphous Tone Head.
• Microprocessor-controlled 3-motor drive with quartz-stabilized direct drive.
• Sapphire bearing mounted drive shaft
• Double capstan drive
• Cassette stabilizer
• Motor-driven cassette compartment
• Record level and bias calibration with 2 tone generators
• Additional 3-stage equalization circuitry
• Dolby B/C
• Disconnectable Dolby HX-Pro
• 24-segment level meter with peak hold
• Real-time tape counter
• Title search
• CD direct input
• Adjustable headphone output
• Gold-plated connection sockets
• Disconnectable display
• Prepared for IR remote control (RM-J 701 available as optional accessory)
• Background control

Remarks

Other models in the same series:

• TC-K 370
• TC-K 470
• TC-K 570
• TC-K 670
• TC-K 770 ES
• TC-K 870 ES
• TC-K 970 ES

Reports

• Stereo 12/1991: Test winner, Absolute top class, 93% (sound 97%, workmanship 79%, practicality 85%, features 79%), Stereo recommendation: 3 stars, excellent