SONY TC-K444
¥ 69,800 (around 1982)
Commentary
A 3-head cassette deck capable of simultaneous recording and monitoring.
Amorphous alloy with excellent magnetic properties is used for the core material of the head, and it has a unique independent suspension type three head structure in which the pad uniformly contacts the recording head and reproducing head.
A closed-loop dual capstan system is adopted, and the tape at the front and rear of the head is sandwiched by two sets of capstan and pinch rollers to obtain highly accurate tape running characteristics.
A 2-motor full logic control has been adopted, and the mechanism can be configured simply, and the configuration has excellent durability and reliability.
As a noise reduction system, Dolby NR / C type is adopted.
In addition, simultaneous recording and monitoring is possible while using the Dolby NR.
In addition to the DC configuration of the recording and playback amplifier in the amplifier section, the direct coupling between the playback amplifier and the head eliminates capacitors that cause sound quality degradation.
Equipped with an independent 4-stage tape selector linked to a bias / equalizer.
In the Type1 position, the bias can be adjusted by ± 20%.
Single channel 16-element peak program meter is mounted.
In addition to the peak level, it is a double indication display with peak hold for about 4 seconds. It is also equipped with a homegrown employee setting level guide that displays the proper recording level for each type of tape, so accurate level setting is possible.
The power supply section uses an FET buffer power supply that supplies a stable current to the amplifier system.
Equipped with Rec Mute function with auto space.
Equipped with a memory start / stop function.
Follow-up recording is possible.
Equipped with auto-play function.
By using the separately sold timer, continuous absence recording and alarm clock playback are possible.
Model Rating
| Type | Stereo cassette deck |
| Heads | 1 Recording 1 Replay Erase x1 |
| Motor | DC high-torque servo motor DC Motor |
| Signal-to-noise ratio | 56dB(EIAJ) 60 dB (Dolby off, peak level, Metallic tape) 73dB(Dolby NR C type) |
| Frequency Response (EIAJ) | 25 Hz ~ 17 kHz ± 3 dB (Metallic Tape) |
| Frequency Range (EIAJ) | 20 Hz to 19 kHz (Metallic Tape) |
| Wow & flutter (EIAJ) | ± 0.06% W Peak (0.04% WRMS) |
| Distortion Factor (EIAJ) | 0.5% (DUAD Cassette) |
| Power consumption | 21W |
| External dimensions | Width 430x Height 105x Depth 285 mm |
| Weight | 5.9kg |