Dual C830 cassette deck

The Dual C830 is a machine that not only handles ferric, chrome, ferrichrome andd metal tapes, it has two values of bias for both ferric and chrome tapes, thereby providing an optimum bias match for all commonly used formulations. Though it has a three-head system with simultaneous record-play, there is no simultaneous Dolby decorder; the simultaneous monitor exactly reproduces the recorded sound - the Dolby decoder is active only in the play mode. A record limiter cuts in at 0 dB record level with a fasy attack and release, thereby protecting against unsuspected excessive signal pecks. The record level indicator is not frequency compensated and indicates the true peak value after record pre-emphasis is applied. The 12-step LED record level indicator is very easy to read.

The C830 has a direct-access front loading mechanism, automatic stop at the end of play and a memory reset counter. It also features adjustable headphone volume, microphone/line input mixing and fade-erase during playback.

Comes in a metal cabinet

Specifications

Type:  Single cassette tape deck

Track System:  4 Tarack, 2 Channel Stereo

Heads:  1 for Record/Playback;  2 for Erase

Tape Speed:  4,75 cm/s

Pitch:  Control range ±4%

Wow and Flutter :  ±0.035% (WRMS)

To DIN, playback only :  ±0,07%

To DIN, recording/plauback :  ±0,10%

Frequency Response  (ref. To DIN tolerances):

Standard Fe Tape :  20 - 17,000 Hz

CrO₂ Tape :  20 - 18,000 Hz

FeCr Tape :  20 - 19,000 Hz

Pure Metal Tape :  20 - 20,000 Hz

Signal-to-Noise Ratio (with Dolby NR)

Fe Tape : 67 dB

CrO₂  Tape :  67 dB

FeCr Tape :  69 dB

Metal :  69 dB

Channel Separation (at 1000 Hz)

Between Stereo Channels :  40 dB

Between Channels (in opposite direction) :  70 dB

Erasure (at 1000 Hz):  70 dB

Oscillator Frequency (push/pull oscillator):  105 kHz

Inputs Sensitivity/Impedance:

Microphone Jack :  0,3 mV/5 k Ω

Amplifier/Receiver DIN Jack :  1 mV/10 k Ω

Amplifier/Receiver RCA Jack :  80 mV/47 k Ω

Outputs Load/Impedance

Amplifier/Receiver DIN Jack :  0-580 mV/10 k Ω

Amplifier/Receiver RCA Jack :  0-580 mV/2 k Ω

Headphones Jack :  4 - 2000 Ω

Fast Wind Time (C-60 cassette):  60 sec.

Line Voltage:  115 volt and 230 volt

Line Frequency:  50/60 Hz

Power Conssumption:  15 W

Dimensions (W x H x D):  440 x 150 x 360 mm (17,2" x 5,9" x 14,2")

Weight:  20 pounds