Sony - TC-WR870 Audio-cassette deck

This dual cassette deck was fully inspected and serviced by a technician last week. This is a high-end Sony model. It is packed and insured very well 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 with Dolby NR B-C type independently mounted on the A/B deck.

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

It is equipped with a sound autofocus function that automates setting the recording level. This function differs from simply setting the level with a meter; it automatically sets the recording level by using the tape’s characteristics, the presence of Dolby NR, and the source level, and analyzes the optimal value with the computer.

It is equipped with a cassette stabilizer. When the tape is set, the stabilizer mounted in the cassette door keeps the cassette half secure and suppresses tape vibration.

Based on Sony’s original amorphous tape head with an amorphous magnetic alloy, we adopted a PC-OCC wound amorphous head in which the winding has been replaced with a PC-OCC winding.

Equipped with Dolby HX Pro, the effective bias amount during recording is adjusted to the optimal value in units of 1/1000 second to prevent overbias in the high band and to improve linearity in the high-frequency range.

By using a superbias and significantly raising the bias frequency, the frequency difference with the musical signal is widened to improve resolution and high-frequency performance.

The B-deck is equipped with bias finetuning that allows adjustment of the optimal bias values, 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 features a subtractive minute- and second-display function.

It is equipped with a peak needle meter with realtime peak display and peak hold function.

Equipped with a display mode switch to toggle between all lamps on and off via the remote control.

Equipped with an auto-fader function that allows fading in and out from the position where the auto-fade button is pressed. You can also fade in by recording messages in combination with the timer.

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

It uses a dual recording-reverse mechanism that enables 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 music.

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

Equipped with an automatic pause function. With normal-speed synchronization, the A-deck is placed in a pause state each time 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 detector that automatically detects Type I (normal), II (low bias/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 with separately sold timers, you can record your absence and have the alarm clock play.

Equipped with an automatic Rec Mute function that automatically mutes for about 4 seconds when you press a button and then temporarily stops.

It is equipped with a power-load function. When you stop a tape in the cassette door and press the control button, such as play or rewind without closing the door, the tape is automatically loaded and the control mode is activated. This sequence of operations also works with the remote control.

It is equipped with automatic track-by-track level control to preserve sound quality when editing tapes. The signal level during dubbing can be adjusted to the optimal level for the recording side tape.

Equipped with a headphone jack with volume control.

The aluminum front panel is adopted.