TEAC TASCAM 122 B Stereo cassette deck 3 heads 4 tracks Operation confirmed 

Description

[Track format] 4 tracks, 2 channels, stereo
[Head] 3 (erasing x1, recording/playback composite x1)
[Tape used] C-60 to C-90 cassette tape
[Tape speed] 9.5cm, 4.8cm
[Motor] For capstan: Electronically controlled 2-speed DC motor, for reel: DC motor
[Fast winding time] 90 seconds or less (C-60 tape)
[Wow Flutter (WRMS)] 9.5cm: 0.04%, 4.8cm: 0.06%
[Bias frequency] 100kΩ
[Equalization]
"4.8cm": 3180μs+70μs/3180μs+120μs, SW switching
"9.5cm": 3180μs+35μs/ 3180μs+50μs, SW switching
【Frequency characteristic】
"4.8cm"
35Hz to 20kHz ±3dB (metal tape)
35Hz to 15kHz ±3dB (cobalt tape)
35Hz to 14kHz ±3dB (normal tape)
"9.5cm"
35Hz to 24kHz ±3dB (metal tape)
35Hz to 20kHz ±3dB (cobalt tape)
35Hz to 18kHz ±3dB (normal tape)
[Total SN ratio (3% THD level, hearing correction)]
4.8cm: 58dB or more
9.5cm: 63dB or more
[Distortion rate] 1% (1kHz, 0VU, 160nWb/m)
[3% distortion level]
4.8cm: 0VU+9dB, 451nWb/m
9.5cm: 0VU+10dB, 506nWb/m
[Crosstalk between channels] 35dB or more
[Elimination rate] 65dB or more
[Peak LED lighting level] 0VU+8dB or more
[Input sensitivity/impedance]
Line1/2
Input impedance: 50kΩ unbalanced
Rated input level: -14dBV (190mV)
  Minimum input level: -24dBV(60mV)
[Output level/impedance]
Line
Load impedance: 25kΩ or more
Rated output level: -10dBV(0.3V)
Maximum output level: -7.5dBV (0.42V)
Headphone: Max 100mW/8Ω
[Power supply] AC100V, 50Hz/60Hz
[Power consumption] 25W
[External dimensions] Width 482x Height 147x Depth 345mm
[Weight] 9kg