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What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.



H.H. Scott '59





Sansui D-W9 cassette deck

 

"Compu-Synchro" Double Cassette Deck

The deck for the creative mind. Record on two tapes simultaneously, or in series. Automatically play one tape right after the other. Dub between decks, dub discs on either, add mike sound - all with one-touch simplicity. A whole new world of taping fun is waithing for you.

Double recording. Synchronized dubbing. Series play "Compu Edit" for dubbing programmed songs from disc to tape (with P-M77 pr P-L50 turntable). 15 song RMPS (Random Music Program Search), with 3-program memory , Dolby C and B  Noise Reduction system . ALC (Automatic Level Control) system

  


Model D-W9 is the only double-transport deck to offer double-recording capability. This means two tapes can be created simultaneously, one for you, and one for a friend. Additionally, it is possible to record programs up to 90 minutes long using C-90 tapes (45 min. per side) - twice as long as normal. The second the tape in deck A reaches the end during record, deck B starts automatically. This same feature is available for playback, doubling your listening time.

 


Specifications

Track System:  4-Track, 2-Channel Stereo

Tape Speed:  4,8 cm/sec (1-7/8 ips)

Head: 

Rec/Power Bandwidth :  High-Bs Hard Permalloy

Erase :  High-Bs FerriteDouble Gap

Motor: 

Capstan :  Electronically Controlled DC Motor

Reels :  DC Motor

Wow and Flutter:  0,04% (WRMS)

Frequency Response:

Metal Tape :  20 - 19,000 Hz

High Bias Tape :  20 - 18,000 Hz

Normal Tape :  20 - 16,000 Hz

Signal-to-Noise Ratio (Metal Tape)

Dolby C NR "On" :  78 dB (above 1 kHz)

Dolby B NR "On" :  68 dB (abowe 5 kHz)

Dolby B NR "Off" :  58 dB (weighted)

Dimensions (W x H x D):  430 x 111 x 312 mm

Weight:  6,4 kg

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