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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





Denon DR-M2 cassette deck

3-head Tape Tension Servo System Stereo Cassette Deck

Features:

Newly developed flat better D.D. capstan servo motor. Drawbacks from belt or idler designs are completely eliminated

The cam-servo motor with a microcomputer control rotary encode checking system

Improved tape tension servo sensor mechanism

Computer full logic mechanism with high reliability

New non-slip reel drive mechanism

Dolby C noise reduction. Double Dolby system

 


Specifications

Type:  Vertical tape loading 4-track 2-channel stereo cassette tape deck

Heads:

1 x SF Record/Playback combination head

1 x Double gap ferrite Erase head

Motors

For capstan : 1 x FG servo DD motor for

For Real Winding : 1 x DC motor

Tape Speed:  4,8 cm/sec

Fast Forward /Rewind Time"  approx. 90 sec. C-60 cassette tape

Recording Bias:  approx. 105 kHz

Signal-to-Noise Ratio Overal (at 3% T.H.D. level):  Dolby C ON more than 73 dB (CCIR/ARM)

Frequency Response Overal (at -20 dB Metal tape) :  25 - 21,000 Hz ±3 dB

Frequency Range (at -20 dB Metal tape):  20 - 23,000 Hz

Channel Separation:  better than 40 dB (at 1 kHz)

Crosstalk:  better than 65 dB (at 1 kHz)

Woa and Flutter:  less than 0,027% WRMS

Input

Microphone :  0,35 mV (-67 dB) with input level control at maximum

Input Impedance :  10 k Ω  unbalanced

Line :  77,5 mV with input level control at maximum

Input Impedance :  50 k Ω  unbalanced

Output

Line :  775 mV (0 dB) with output level control at maximum (with 10 k Ω  load, recorded level of 200 Pwb.mm)

Headphone :  1,2 mW with output level control at maximum (optimum load impedance 8 Ω  to 2 k Ω )

Accessories :  Parallel PIN cord x 2, cleaning stick set x 1

Power Requirements:  AC 110, 120, 220 - 240 V, 50/60 Hz

Power Consumption:  22 W

Dimensions (W x H x D):  434 x 115 x 286 mm

Weight:  5,7 kg


 

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