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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





Kenwood KT-660L tuner


Quartz Synthesized FM/MW/LW Tuner with Timer

Features:

Station Name Preset System (SNPS)

20-station random preset memory

12-station preset with SNPS system

Fluorescent display

Presect scan

Automatic and manual digital tuning

Buil-in two programme timer and 60-minute sleep timer.

 


Specifications

FM Tuner Section

Tunung Frequency Range:  87,5 MHz - 108 MHz

Antenna Impedance:  75 Ω  unbalanced

Sensitivity (DIN)

Mono :  1,0 µV

Stereo :  29 µV

Limiting Level -3 dB point, 40 kHz Dev:  0,5 µV

Total Harmonic Distortion

Mono :  0,15%

Stereo :  0,2%

Signal-to-Noise Ratio (DIN) Unweighted

Mono :  68 dB

Stereo :  64 dB

Signal-to-Noise Ratio (DIN) Weighted

Mono :  68 dB

Stereo :  63 dB

Capture Ratio:  1,8 dB

Alternate Channel Selectivity:  64 dB (DIN ±300 kHz)

FM Stereo Separation (1 mV input DIN)

1,000 Hz :  50 dB

6,300 :  36 dB

Frequency Response 30 Hz - 15 kHz:  +0,5 dB -2,5 dB

Image Rejection Ratio (98 MHz):  75 dB

IF Rejection Ratio (98 MHz):  95 dB

Spurious Rejection Ratio (98 MHz):  100 dB

AM Suppression Ratio:  70 dB

Subcarrier Suppression Ratio:

19 kHz, 46 kHz Dev :  70 dB

38 kHz, 46 kHz Dev :  75 dB

Output Level/Impedance:(1,000 Hz 100% Dev):  0,6V/3,3 k Ω

MW Tuner Section

Tuning Frequency Range:  531 kHz - 1602 kHz

Usable Sensitivity:  14 µV (400 µV/m)

Signal-to-Noise Ratio (30% Mod, 1 mV input):  50 dB

T.H.D.  0,5%

Image Rejection Ratio:  40 dB

Selectivity (IHF):  25 dB

Output Level/Impedance (400 Hz 30% Dev):  0,18V/3,3 k Ω

LW Tuner Section

Tuning Frequency Range:  153 kHz - 281 kHz (1 kHz step)

Usable Sensitivity:  17 µV (800 µV/m)

Signal-to-Noise Ratio (30% Mod; 1 mV input):  50 dB

Total Harmonic Distortion:  0,5%

Image Rejection Ratio:  35 dB

Selectivity(IHF):  30 dB

Output Level/Impedance (400 Hz, 30% mod):  0,18V/3,3 k Ω

General

Power Consumption:  12 W

Dimensions (W x H x D):  440 x 65 x 251 mm (17-5/16" x 2-9/16" x 9-7/8")

Weight:  3,1 kg

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