Technics RS-B78R

Commentary

Reverse deck equipped with direct music selector and dbx system.

Equipped with a dbx system that achieves a high dynamic range by recording a music signal compressed to 1 / 2 and stretching it to 2 times during playback. In addition, with a 3 nr configuration equipped with Dolby B/C, you can choose the appropriate NR according to your purpose.

The reverse mechanism has an inversion detection function using an infrared sensor.
There are three types of reverse mode : single-sided, double-sided, and double-sided loop. The direction of tape movement can be switched by the direction selector.

The newly developed thrust hold AX rotary head is used for the recording and reproducing head.
This head uses an AX head made of an amorphous alloy, and has a thrust hold rotary structure that eliminates misalignment of azimuth in the forward and reverse directions, so that uniform characteristics are obtained over A and B surfaces.

Equipped with a direct music selector, you can select and play only the music you like regardless of A side or B side.
You can set a song by simply pressing the select button of the song you want to listen to. Up to 12 songs for each of A side and B side are played automatically.

Equipped with a 2-way digital counter, it can display the remaining tape time of each A side and B side in addition to the normal 3-digit tape count.

Equipped with a repeat performance function, you can repeatedly play a song selected with the direct music selector up to 16 times on both sides A and B, or repeat one song.

Auto REC mute is installed. When you press rec mute during recording, a 4-second non-recording portion is automatically created and the recording standby mode is set.

Equipped with a blank skip function, it automatically fast-forwards and plays the next song when an unrecorded portion lasts for more than 10 seconds.

Equipped with an auto tape selector, it automatically detects the type of tape and switches the position of the tape.

Equipped with auto input selector and cue & review function.

There are silver and black color variations.

Model Rating

Type	Stereo cassette deck
Heads	Recording / Playback : AX Amorphous Erase : 2 x Double Gap Ferrite
Motor	Electronically controlled DC motor for capstan Reel motor
Wow flutter	0.045%(W.R.M.S.) ± 0.095% (W. Peak, EIAJ)
Frequency characteristic	Normal (ED) : 20 Hz to 18 kHz, 40 Hz to 16 kHz ± 3 dB (EIAJ) CrO2(EX) : 20 Hz to 19 kHz, 40 Hz to 17 kHz ± 3 dB (EIAJ) Metal (EM) : 20 Hz to 20 kHz, 40 Hz to 18 kHz ± 3 dB (EIAJ)
Dynamic range	110 dB (dbx in, 1 kHz, EX Tape)
Signal-to-noise ratio	NR off : 58 dB (EX Tape, WTD, 1 kHz, 3% third order distortion) 55 dB (EX tape, EIAJ) Dolby B NR in : 66 dB (EX Tape, WTD, 1 kHz, 3% third order distortion) Dolby C NR in : 72 dB (EX Tape, WTD, 1 kHz, 3% third order distortion) Dbx in : 92 dB (EX tape, WTD, 1 kHz, 3% third order distortion)
Input Sensitivity / Impedance	Mic : 0.25mV/400 Ω ~ 10k Ω Line : 60mV/47k Ω
Output Level / Impedance	Line : 400mV/1.5k Ω Headset : 2mW/8 Ω (compatible impedance 8 Ω ~ 600 Ω)
Pwer	100 VAC, 50Hz/60Hz
Power consumption	Approx. 20W
Maximum external dimensions	Width 430x Height 98x Depth 273 mm (Including Knob and Rubber Foot)
Weight	Approx. 5.3 kg