Sony - TC-WR870 Audio-cassette deck

This dual cassette deck was fully inspected and serviced by a craftsman last week. This is a high-end Sony model. It is very well packaged and insured for shipping. Insurance at my expense.
The heads are in excellent condition. Deck A heads are still 80% OK, Deck B heads 100% OK.

Dual high-speed reverse cassette deck in which Dolby NR B-C type is independently mounted on the A/B deck.

Both A- and B-decks are equipped with a newly developed quiet and fast reversing mechanism that ensures quiet and smooth tape transport.

It is equipped with an audio autofocus function that automates setting the recording level. This function differs from simply setting the level with the meter: it automatically sets the recording level by using the tape’s capabilities, the presence of Dolby NR, and the source level to detect, and analyzes the optimum value with a computer.

It is equipped with a cassette stabilizer. When the tape is inserted, the stabilizer mounted in the cassette door secures the tape half and suppresses tape vibration.

Based on Sony’s original amorphous head with an amorphous magnetic alloy, we have adopted a PC-OCC wound amorphous head whose winding has been replaced by a PC-OCC winding.

Equipped with Dolby HX Pro it regulates the effective bias amount during recording to the optimal value in units of 1/1000 of a second to prevent overbias at high frequencies and to improve linearity in the high-frequency range.

By using a superbias and greatly shifting the bias frequency upward, the frequency difference with the musical signal is expanded to improve the resolution and characteristics of the high-frequency range.

The B-deck is equipped with bias finetuning allowing optimal bias values to be adjusted, which vary slightly depending on the type of tape.

As a noise reduction system, it is equipped with Dolby NR B-type and C-type.

It uses a linear electronic counter with an FL tube that is equipped with a subtractive minute- and second-display function.

It is equipped with a peak needle meter with real-time peak display and peak hold function.

Equipped with a display mode switch, you can switch between all lamps on and off via the remote control.

Equipped with an auto-fader function, you can fade in and out from the position where you press the auto-fade button. Additionally, you can also fade in by recording messages together with the timer.

With a fast reverse mechanism, it can operate quickly with virtually no noise when rewinding the tape.

It uses a dual recording-reverse mechanism that allows simultaneous recording on two tapes and continuous 180-minute recording.

Equipped with an AMS (Automatic Music Sensor) function that quickly indicates the start of the previous or next track.

It is equipped with a blank skip function, and when there is a silent passage of more than 10 seconds, it seeks to the start of the next track and restarts playback.

Equipped with automatic pause function.

With this when synchronizing at normal speed, the A-deck is put into a pause state whenever a track is played, and the B-deck waits in a recording pause. This enables synchronization when selecting a song.

Equipped with an automatic tape type selector, it automatically detects Type I (normal), II (high bias) 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 with the separately sold timer, you can record your absence and have the alarm play.

Equipped with an automatic Rec Mute function that automatically mutes for about 4 seconds by pressing a button and temporarily stops.

It is equipped with a power loading function. When you stop a tape in the cassette holder and press the control button, such as play or rewind without closing the door, the tape is automatically loaded and the control mode is engaged. This series of operations also works when using the remote control.

It is equipped with a synchronous output level control to preserve sound quality when editing tapes. The signal level during dubbing can be adjusted to the optimum level for the recording-side tape.

Equipped with a headphone jack with volume control.

Adopts an aluminum front panel.