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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 G-11

Laboratory Standard Series
Solid State Graphic Frequency Equalizer


 Circuitry
Unlike conventional graphic equalizers using LC resonant circuits, the entire control circuitry of the G-11 features semi-conductors and capacitors, which makes it possible to offer not only an unrivalled 0,005% THD and ID even at 2V output but a superb S/N ratio exceeding 110dB (IHF A-curve)

Functions
The audio frequency ramge for both right and left channels is divided into 10 bands in 1 octave increments based upon the "A" tone, (440Hz) which is the standard tone of musical instruments.
10 center-frequency points are provided for each channel, which permit adjustment of the peak and dip at each point, enabling you to create whatever frequency response curve you want.
Overall selection of the maximum variable amount of peak and dip can be made by 2 steps (±6dB and ±12dB), which allows such operations as manual tone control for large tonal variations or as in the case of our Linear Equalizer for small variations, Therefore, you can enjoy wide range compensation of frequency response, such as frequency compensation of loudspeakers or phono cartridges, optimum control of room acoustic, compensation of RIAA curve, or frequency compensation of tapedecks, etc.
A bypass switch is also provided to check the effect of this equalizer and to compare equalized and unequalized response.


Specifications
Output Voltage:  Typically 1V, max 6V (at flat position)
Output Impedance:  500 ohms
Total Harmonic Distortion:  no more than 0,005% (output 1V, 20 - 20,000 Hz, flat)
Intermodulation Distortion:  no more than 0,005% (output 1V, 60 Hz:7kHz = 4:1, flat)
Input Sensitivity:  1V
Input Impedance:  100 kohms
Frequency Response:  10 Hz - 100,000 Hz (within -1dB, at flat position)
Gain:  0dB (within ±0,5 dB, at flat position)
S/N Ratio: 
better than 115 dB (at flat position, IHF A weighted, input short-circuited)
Better than 95 dB 9at flat position, RMS input short-circuited)
Equalizer Centre Frequency:  28, 55, 110, 220, 440, 880, 1,8k, 3,5k, 7k, 14k Hz
Maximum Variable Amount:  ±12 dB and ±6 dB (selectable)
Bandwidth:  Q = 2.3
Channel Separation:  better than -80 dB (1 kHz)
Residual Noise:  below 0,018 mV (at flat position)
Additional Features:  Range Selector Switch, Bypass Switch, Extra AC Outlet (unswitched 300 W)
Power Consumption:  23 W
Dimensions (W x H x D):  438 x 314 x 126 mm (17-1/4" x 12-3/8" x 4-15/16")
Weight:  5,9 kg (12,9 lbs) Net

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