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

JVC KD-1770 Mark II

 For people who prefer to place their decks a top a shelf or table. JVC has designed the top-loading KD-1770, as with all JVC state-of-the-art. Audio components, the KD-1770 Mark II offers a low wow and flutter figure of only 0,05% (WRMS). This deck's motor and tape transport mechanism also are of a time-tested horizontal design proven to assure stable recording performance.
KD-1770 Mk II features:
Two sets of 5-LED Peak Indicators; One for Each Channel
Super  Automatic Noise Reduction System (ANRS)
Sen-Alloy (SA) Head and Two-Gap Erase Head
Independent Drive (ID) Mechanism
Low Wow / Flutter and Flat Response
Mic (DIN) / line Mixing
6-Pushbutton Bias / Equalizer Selection
Timer Standby Facility and Memory Stop
 Finest mechanism
The KD-1770 Mark II's exceptionally low 0,05% wow and flutter is due to the use of JVC's frequency generator (FG) servo-motor. This frequency-controlled drive unit is DC-operated for less error and is known to rotate more smoothly, provide higher torque and allow less speed deviation that AC-operated units which often are adversely affected by line voltage fluctuations. Another JVC exclusive employed in the KD-1770 MkII is an independent Drive mechanism which allows the capstan to rotate independently of the deck's reels. The result is accurate tape speed and elimination of reel-caused "tape drag".

Versatile Recording Aids
The KD-1770 Mark II has two JVC 5-LED peak indicators (10 LEDs in total) to allow monitoring of all signals - left and right channels - at a glance. Also included are two pairs of input level controls - one for Mic/DIN and one for Line. Plus two pairs of circuits - one pair for the left channel and one for the right channel. Thus you can mix mic signals with line inputs from a turntable, tuner or second tape deck. Or you can dub voice or guitar accompaniment into an FM program. Separate inputs for Mic/DIN and Line also mean low distortion and high signal-to-noise ratio. Needless to say, the above capabilities make the KD-1770 Mark II an extremely useful machine.

Convenience features
Recording and playback are a pleasure if you use a KD-1170 MkII deck, but its technical versatility doesn't mean it's difficult to operate. Indeed, it boasts many easy-to-operate features, including a memory Stop mechanism, an Air-Damped Cassette Lid; a photo-electric Full Automatic Stop Mechanism to prevent tape stretching and motor wear; an illuminated cassette compartment which allows easy cheking of tapes; a removable cassette lid to make head-cleaning simpler; mirrored VU meters for precise record level readings.
Frequency Response:
Chrome Tape :  30 -16,000 Hz ±3 dB
Normal Tape :  30 - 16,000 Hz ±3 dB
Signal-to-Noise Ratio:  56 dB (from peak level weighted, without ANRS)
Wow and Flutter:  0,05% (WRMS);  0,18% (DIN 45 500)
Crosstalk:  65 dB at 1 kHz
Channel Separation:  35 dB at 1 kHz
Harmonic Distortion:  0,5%
1 x Sen-Alloy head for record/Playback
1 x Two-Gap Ferrite head for Erase
Motor:  Frequency-Controlled DC Servo Motor
Fast Forward/Rewind Time:  75 sec. (C-60 cassette)
Bias and Erase System:  AC-95 kHz
Input Sensitivity/Impedance:
Mic x 2 :  0,2 mV/ 600 - 10 k Ω
Line In x 2 "  80 mV/100 k Ω
DIN :  0,17 mV/10 k Ω
Output Level/Impedance:
Line Out x 2 :  0 -500 mV/6,8 k Ω
DIN :  0 - 500 mV/6,8 k Ω
Headphone :  0 - 0,3 mW/ 8 - 1000 Ω
Power Source/Consumption:  120 V or 220 V 50/60 kHz ; 30 watts
Dimensions (W x H x D):  426 x 126 x 277 mm (16-3/4" x 4-15/16" x 10-7/8")

Weight:  5,5 kg (12,1 lbs)

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