SONY TC-RX77
¥ 39,800 (released in 1991)
Commentary
Auto reverse cassette deck equipped with sound auto focus function, etc.
The mechanism section uses a newly developed mechanical deck "Silent & Quick Action Reverse Mechanism" that enables quick and comfortable operation without damaging the tape.
In addition, it is equipped with a cassette stabilizer. When the tape is set, the stabilizer installed inside the cassette door firmly fixes the cassette half and suppresses the vibration of the tape.
It is equipped with a power loading function. When you put a tape in the cassette lid and press the operation button such as play or rewind without closing the door, the tape is automatically loaded and the operation mode is entered.
This series of operations also works when using the remote control.
It is equipped with a sound auto-focus function that automates the setting of recording level.
This function is different from simply setting the level with the meter automatically sets the recording level that takes advantage of the capabilities of the tape by sensing the type of tape, the presence of Dolby NR, and the level of the source, and analyzing the optimal value by the computer.
Based on Sony's original amorphous laser head using an amorphous magnetic alloy, we have adopted a PC-OCC wound laser amorphous head in which the head winding has been changed to a PC-OCC winding.
Equipped with Dolby HX Pro, the effective bias amount during recording is controlled to the optimum value in units of 1/1000 second to prevent over-bias in the high band and improve linearity in the high band.
By using a super-bias and greatly shifting up the bias frequency, the frequency difference with the music signal is expanded to improve the resolution and characteristics of the high-frequency range.
It is equipped with bias fine tuning that can fine-tune the optimum bias value that slightly differs depending on the type of tape.
As a noise reduction system, it is equipped with Dolby NR B type and C type.
Wireless remote control is included.
By using this remote control, you can enjoy synchronized recording without connecting a sync cord to a CD player supported by Sony's remote control. It is equipped with a wireless CD sync recording function.
It uses a linear electronic counter with FL tube that is equipped with a subtraction function of minute and second display.
It is equipped with a peak level meter with real time peak display and peak hold function.
Equipped with a display mode switch, it can be switched to 3 modes : all lights / counter only partial light / light off.
Equipped with an auto-fader function, you can fade in and fade out from the position where you press the auto-fade button.
In addition, you can also fade in by recording messages in conjunction with the timer.
Equipped with a quick reverse mechanism, it realizes quick operation with almost no sound cut when reversing the tape.
Equipped with AMS (Automatic Music Sensor) function that can quickly cue the beginning of the previous or next music.
Equipped with an auto tape selector, it automatically detects type I (normal), II (high position), or IV (metal).
Equipped with an autoplay function that automatically starts playing after rewinding, and a memory play function that starts playing from the position reset to counter 0.
By combining the timer sold separately, it is possible to record your absence and play the alarm clock.
Equipped with an autospace Rec Mute function that automatically records muting for approximately 4 seconds by pressing a button and temporarily stops it.
Equipped with L/R independent microphone input terminal with automatic switching mechanism of line and microphone.
Equipped with a headphone port with volume.
Aluminum front panel is adopted.
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Model Rating
| Type | Cassette deck |
| Heads | Erase : 1 Recording : 1 |
| Motor | DC servo motor : 1 DC Motor : 1 |
| Signal-to-noise ratio | 57 dB (EIAJ, Dolby off, peak level, Metal-S cassette) 74 dB (Dolby NRC, peak level, Metal-S cassette) |
| Frequency characteristic | 25 Hz ~ 19 kHz ± 3 dB (EIAJ, Metal-S Cassette) |
| Frequency range | 15 Hz ~ 20 kHz (EIAJ, Metal-S Cassette) |
| Wow and flutter (EIAJ) |
± 0.09% Wpeak 0.05%WRMS |
| Distortion factor | 0.5% (3rd harmonic distortion factor, 1 kHz, Metal-S Cassette) |
| Power consumption | 16W |
| External dimensions | Width 430x Height 123x Depth 300 mm |
| Weight | 4.7kg |
| Attachment | Wireless Remote Control RM-J501 |