The DN-790R’s elegantly simple CAM motor system is not only much quieter than conventional plunger or lever driven systems but also far more reliable. A special computer and encoder control circuit check the timing of tape and mechanism engagement to ensure optimum tape transport at all times. The computer also controls the display circuit, synchronizes the audio circuit with the timing of the tape transport mechanism, and activates the control buttons.
Perfectly constant tape tension is a prerequisite for stable tape to head contact. Denon’s Dual Capstan Drive system thus provides a closed loop effect which isolates the portion of the tape that is centered on the head. Both the flywheel and capstan have been finished to micron accuracy to deliver the possible performance in every respect. The audible result is a superior sound with significantly reduced modulation noise.
Both the recording and playback heads in Denon’s combination head system are made of a high flux density material that is ideal far magnetic components. The coil wiring employs a special copper material called PC-OCC which assures outstanding response characteristics up to very high frequencies. MOL (Maximum Output Level) is also notably improved, resulting in transparent clarity and highly precise stereo imaging.
The lifetime of an amorphous head is five times longer than that of a conventional Permalloy head.
Another important advantage of the amorphous head is that it improves high frequency dynamic range by as much as 2 to 2.5 dB at 14 kHz.
Specifications
Type: 3-head, single compact cassette deck
Track System: 4-track, 2-channel stereo
Tape Speed: 4.8 cm/s (Pitch Control)
Heads: 1 x playback, 1 x recording, 1 x erase
Motor: 1 x capstan, 1 x reel, 1 x actuator
Tape Type: type I, FeCr, CrO2
Noise Reduction: B, C
Frequency Response: 20Hz to 20kHz (Metal tape)
Signal to Noise Ratio: 75dB (Dolby C)
Wow and Flutter: 0.038%
Input: 80mV (line)
Output: 0.775V (line)
Dimensions: 483 x 134 x 275mm
Weight: 5.1kg
Fully working, Excellent condition.
Made in Japan.
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