Technics RS-B900 (1991) | G-Series

 

The Technics RS-B900 is a stereo cassette deck with a closed-loop dual capstan system and three heads. The mechanism employs a closed-loop dual capstan system, with a high-torque Quartz controlled DD motor providing excellent rotational precision and stable running performance. The recording amplifier employs Technics' proprietary discrete linear magnetfield Class AA, consisting of a voltage-controlled amplifier and a current-supply amplifier, significantly improving the magnetic field waveform response. The playback system is equipped with a phase correction circuit to ensure a more faithful waveform response. A CD direct line input terminal is also provided to record CDs without compromising their dynamic range. The mounting frame supporting the transport system effectively combines two different materials, die-cast zinc and die-cast aluminum, for superior vibration resistance. In addition, power-assisted cassette loading securely holds the highly rigid, glass-fiber-reinforced cassette holder in place, while cassette half stabilizers suppress vibration of the half itself caused by tape movement. The internal structure features a T.N.R.C. base with excellent vibration damping properties and an anti-vibration top panel, reducing external and internal vibrations. A separate block structure prevents mutual interference. This structure separates the power supplies for the mechanism control system and the audio system, and further divides the audio system into five blocks: playback equalizer, playback noise reduction, recording noise reduction, recording equalizer, and headphones, preventing signal interference from adversely affecting sound quality. Beat noise is reduced by incorporating a BS bias that drives the bias at a high oscillation frequency of over 200 kHz. The RS-B900 also features APRS (Advanced Precise Rec Level System) functionality. When a signal is input while in record pause mode and the APRS button is turned on, the maximum input signal value is held and displayed on the meter. Adjusting the Rec-Level to match this displayed maximum value will cause the hold indicator on the meter to move accordingly, allowing you to set the appropriate recording level. The level meter features a switchable range, allowing you to change the level display in 1dB steps. A built-in recording calibration oscillator allows you to adjust the recording level and bias for each left and right channel. In addition to Dolby B/C, the noise reduction system also includes dbx, which provides excellent noise reduction. The recording/playback combination head uses an amorphous head with PC-OCC windings. Dolby HX-PRO is included for improved high-frequency recording characteristics. A linear electronic counter is included, allowing memory stop and memory repeat functions. An MPX filter is included. An auto tape/source monitor is included. A wireless remote control is included. While this model is based on the RS-B965 it was actually only made to order for Japanese market customers. Specifications: 3-Head System, Amorphous heads | Quartz Direct Drive Dual Capstan in a 2+1 motor mechanism | Wow & Flutter 0,03% WRMS | Dimensions (W/H/D) 483x141x290 mm | Weight 7,5kg | Original sale price in Japan ¥100,000

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