SONY TC-WR910

Commentary

This twin recording re-reverse deck is equipped with various functions such as Dolby HX Pro and Super Bias.

The head uses an LC-OFC wound laser amorphous head that takes advantage of the magnetic properties of amorphous magnetic alloys and employs an LC-OFC (linear crystalline oxygen-free copper) in the head winding of the original laser amorphous head. This reduces distortion due to capacitive reactances and reduces loss in the mid-range and high-range.

Equipped with the Dolby HX-PRO, the effective bias amount is controlled to the optimum value in 1/1000 second increments to prevent over-bias in the high-frequency range and improve linearity in the high-frequency range. This function works only during recording, so it is effective even when played on a deck without the Dolby HX-PRO.

Super-bias is adopted, and by shifting up the bias frequency greatly, the frequency difference with the music signal is expanded, and beat noise and intermodulation distortion due to interference between the bias frequency and the music signal are suppressed.

Each of A deck and B deck is equipped with Dolby NR B-C type. Recording settings such as C type for A deck and B type for B deck are available, and cross Dolby dubbing is also available for playing in C type and recording in B type (at normal speed).

By using the included wireless remote control, you can record in sync without connecting a sync cord to a CD player supported by Sony's remote control.

Equipped with FL tube adoption linear electronic counter with subtraction function of minute and second display.

Uses gold-plated input / output terminals with low contact resistance and little change over time such as rust and corrosion.

It is equipped with a quick Oatley birth function that realizes quick action with almost no sound cut when reversing the tape.

Twin recording and re-reverse is possible.

The A deck allows you to fine-tune the tape speed up to about 10% during playback and constant speed dubbing.

Equipped with AMS (Automatic Music Sensor) function that can quickly find the beginning of the previous or next music.

It is equipped with a blank skip function that fast-forwards to the beginning of the next song when there is a silent part of more than 10 seconds and restarts the performance.

Equipped with an auto tape selector that automatically detects whether the tape being used is 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.

Timer recording and alarm clock playback are possible by combining the separately sold timer.

Equipped with a Rec Mute function with auto-space that automatically mutes for approximately 4 seconds.

Model Rating

Type	Cassette deck
Heads	Recorder / Rehead : 2 Erase Head : 2
Motor	DC servo motor : 2 DC Motor : 2
Signal-to-noise ratio	56 dB (EIAJ, Dolby off, peak level, Metal-S cassette) 72 dB (Dolby NRC, peak level, Metal-S cassette)
Frequency characteristic	30 Hz ~ 19 kHz ± 3 dB (EIAJ, Metal-S Cassette)
Frequency range	20 Hz ~ 20 kHz (EIAJ, Metal-S Cassette)
Wow and flutter (EIAJ)	± 0.07% Wpeak 0.05%WRMS
Distortion factor	0.5% (EIAJ, Metal-S Cassette)
Power consumption	27W
External dimensions	Width 430x Height 120x Depth 340 mm
Weight	6.1kg
Attachment	Wireless Remote Control RM-900W