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

Martin Logan Aerius i

 Twenty years ago (from the past 1996) Martin Logan presents "Aerius i" one of the ESL series, a wonder in dimension, technology and price. The Aerius i requires only 1 square foot of floor space making it an outstanding addition for small apartments and dedicated home theaters. Available in matte black with a variety of handfinished hardwood trim. Single and bi-wire capable.
 At the heart of every Martin Logan speaker -  the patented curvilinear electrostatic transducer -lies an ultrathin transparent diaphragm. Driven by charged electrons and weighing less than the air it moves, the diaphragm is so responsive it reproduces sound at levels only associated with the finest audio electronics.
With indistinguishably low distortion, the patented Martin Logan diaphragm precisely tracks the input signal, engages the air, and transmits the audio signal to your ear - flawlessly. The ESL’s low distortion and curvilinear line source combine to provide minimal room interaction, detail, power, and clarity; unavailable any other way.
Frequency Response:  40 - 22,000 Hz, ±3 dB
Horizontal:  30 degrees
Vertical:  3.5’ (106 cm) line source
Sensitivity:  89 dB [2.83 volts/meter]
Impedance:  4 Ω , 1.7 at 20 kHz
Crossover Frequency:  450 Hz
Components:  Custom-wound audio transformer, polypropylene capacitors, air core coils
Woofer Type:  8" (203 mm) high excursion, high rigidity cone with extended throw driver assembly; non-resonant chamber format
Power Handling:  200 watts/channel
Dimensions (H x W x D):  1410 x 270 x 320 mm (55,5" x 10,5" x 12,5")
Weight:   24.9 kg each, (55 lbs)

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