Audio Database

RS-BX70
Commentary

A stereo reverse deck of the Concise G series.

Equipped with ATC (Auto Tape Calibration).
This function automatically adjusts the recording parameters based on the characteristics of the tape being used. A recording equalizer IC with an analog signal processing function originally developed by Technics is controlled by a microcomputer. After pressing the button for approximately 50 seconds, the bias, the equalizer and the level are set according to the tape being used.

Equipped with FF/REW high-speed search, it can search at the maximum speed of about 60 times that of PLAY.
It also automatically slows down when the remaining tape is low to prevent damage to the tape, and T. P.S. also realizes high-speed search with high-speed operation.

Equipped with a power assist cassette holder.
By opening and closing the cassette holder with a power motor, the position of the tape relative to the traveling system is strictly determined and recording and playback accuracy is improved.
The pop-up action also makes it easier to take out the cassette.

Equipped with Dolby HX-PRO, it enables high-quality sound recording by appropriately controlling the effective bias.

Equipped with Dolby B/C NR as a noise reduction system.

Permalloy head is used for the head.

The mechanism part adopts a recording / reproducing Oatley berth mechanism.

A 2.5 mm thick aluminum case is used for the case, and a 7 mm thick aluminum panel is used for the front panel.

Model Rating
Type Cassette deck
Heads Recording / Playback : Permalloy
Erasing : double-gap ferrite
Motor DC servo motor
DC Motor
Wow flutter ± 0.14% (W peak, EIAJ)
0.07%(W.R.M.S)
Early winding time Approximately 50 Seconds (C-60)
Frequency Response (EIAJ) Normal : 30 Hz to 15 kHz ± 3 dB
Chrome : 30 Hz ~ 15 kHz ± 3 dB
Metal : 30 Hz ~ 16 kHz ± 3 dB
S/N ratio (chrome tape) NR off : 56 dB (WTD, 1 kHz, 3% third order distortion factor)
58dB(EIAJ)
Dolby B NRon : 66 dB (WTD, 1 kHz, 3% third order distortion factor)
Dolby C NRon : 74 dB (WTD, 1 kHz, 3% third order distortion factor)
Input Sensitivity / Impedance Line in : 100mV/47k Ω
Output Voltage / Impedance Line out : 500mV/500 Ω
Pwer 100 VAC, 50Hz/60Hz
Power consumption 14W
2.3W (power off)
External dimensions Width 270x Height 113.5x Depth 313.5 mm
Weight 3.6kg