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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





Rotel RT-622

 Here is Rt-622, one of the finest tuners around you will ever find. FM section of this unit is truly a masterpiece; sensitivity of less than 1,7 µV, selectivity at 80 dB, capture ratio of 1 dB, and various crucial rejections of over 100 dB would definitely bring you most clear high fidelity reception. And with 40 dB stereo separation at almost no distortion, FM stereo broadcast will sound as superb as the original sound. In addition, muting switch with level control and MPX filter, as well as output level control on the  rear panel, compliment this total AM/FM tuner. A great companion to our Rotel RA-611 stereo pre-main amplifier.
 Special Features
All advanced solid state electronics design
IC's for IF and MPX circuits
Super-sensitive FET fronted for clear and precise reception
Handsomely trimmed aluminum extrusion panel
Efficient muting switch with muting level control
Effective multiplex switch to suppress stereo background noise
Professional touch of precise and smooth flywheel action of large tuning knob
Illuminated dial board with stereo indicator light
Wide and linear FM dial scale for easy tuning
Illuminated signal strength tunning meter for visible tuning
Illuminated FM signal center tuning meter for accurate tuning
Rear panel adjustable output level control switch
Wood cabinet included
Specifications
FM Section
Sensitivity (IHF):  1,7 µV
Frequency Range:  88 - 108 MHz
Harmonic Distortion:  less than 0,5%
Signal-to-Noise Ratio:  70 dB
Capture Ratio:  1 dB
Selectivity:  80 dB
Stereo Separation:  40 dB at 1 kHz
Image Rejection:  100 dB
IF Rejection:  100 dB
Spurious Response Rejection:  100 dB
AM Section
Sensitivity (IHF):  200 µV/m
Frequency Range:  535 - 1605 kHz
Image Rejection:  80 dB at 1 MHz
IF Rejection:  70 dB at 1 MHz
Signal-to-Noise Ratio:  50 dB
Selectivity:  40 dB
Dimensions (W x H x D):  16-1/2" x 5-1/2" x 9-1/2")
Weight:  5 kg (11 lbs)


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