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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





Luxman R-800


The AM/FM Stereo Receiver R 800 boasts 40 +40 watts RMS into 8 ohms, both channels operating with less than 0,1% THD. It has a 1.8 µvolt IHF sensitivity stereo FM section, and an AM section with 14 µvolt IHF sensitivity.
Mike mixing is possible with either of two phono inputs or two auxiliary inputs.
You can dub tape to tape with two tape recorders.
Now you can also use three sets of speakers.




Specifications
Audio Section
Circuit:  Fully complementary direct coupled DC output amplifier utilising dual rail power supply.
RMS Power Rated 
2 x 40 W (8Ω, both channel driven)
2 x 45 W (4Ω, both channel driven)
Total Harmonic Distortion:  less than 0,05% 
Frequency Response:
15 Hz - 35 kHz (-1 dB)
5 Hz - 75 kHz (-3 dB)
Power Bandwidth>  5 Hz - 40 kHz (0,1%,  -3 dB)
Input Sensitivity (at 40 Watts, 8 ohms, 1 kHz):
Phono 1, 2: 2,3 mV
Aux 1, 2: 150 mV
Tape Monitor 1, 2 : 150 mV
Mic :  2 mV
Rec Out :
RCA plug : 150 mV,  100 ohms
DIN plug : 30 mV, 90 kohms
Equalizer Curve:  RIAA Standard
Permissibile Phono Input Voltage:  100 mV max. At 1 kHz
Tone Control (Treble & Bass Lux type NF tone control):
Bass : 300 Hz, ±10,5 dB
Treble : 3 kHz, ±9,5 dB
Filter:
Low Cut : 70 Hz, 20 Hz  6dB/oct
High Cut : 6 kHz, 12 kHz  6 dB/oct
Loudness Control:  Yes
S/N Ratio:
Phono1, 2 : less than 66 dB
Aux 1, 2 : less than 85 dB
Monitor : less than 85 dB
Residual Noise:  less than 0,9 mV; 86 dB
AM Section
IHF Sensitivity:  14 µV
S/N Ratio: 48 dB
IF Rejection:  85 dB
Image Rejection:  72 dB
THD: 0,6%
FM Section
IHF Sensitivity:  1,8µV
Sensitivity for 50dB S/N:  3,6µV
Ultimate S/N:  70 dB
Total Harmonic Distortion
Mono : 0,3% (at 400 Hz)
Stereo : 0,4% (at 400 Hz)
Alternate Channel Selectivity : 70 dB
IF Rejection : 90 dB
Image Rejection : 90 dB
Spurious Response Rejection:  90 dB
AM Supression:  55 dB
Capture Ratio:  1,3 dB
Stereo Separation:  40 dB at 400 Hz;  30 dB at 100 Hz to 10 kHz
Muting Threshold:  7µV
Stereo Trreshold:  7µV
Frequency Response:  30 Hz to 15 kHz (+0,2dB -1,5dB)
General Section and Accessories:
Head-Phone Jack, Mode Selector (Stereo/Rev/Mix)
Speaker Selector (A,  B,  C,  A+B,  A+C)
Dual Monitor Circuit (useful for tape to tape dubbing)
Protection circuit for amp.
Mic. Mixing
De-emphasis Switch (50/70 µsec),
AC Outlet,
Voltage Selector (100, 120, 220, 240 V)
Power Requirement:  100/120/220/240 V 50/60 Hz AC
Power Consumption:  35 - 160 W (at rated output)
Dimensions (W x H x D):  480 x 345 x 360 mm (18-1/8" x 13=5/8" x 14-3/16")
Weight:  15 kg

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