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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





EPI A-70 loudspeaker


"The EPI A70 is a small and inexpensive two-way "mini-bookshelf' speaker system. It has a 6-inch acoustic-suspension woofer crossing over at 1,800 Hz to a 1-inch inverted-dome tweeter (similar to the tweeters used in other EPI speakers for many years). The nominal system impedance is 4 ohms, and it is rated to handle 50 watts input for 8 hours in accordance with EIA Standard RS-426A. The recommended minimum amplifier power is 15 watts per channel. 
The A70 has no level or balance controls. The insulated spring-loaded input connectors are recessed into the rear of the cabinet. Removing the black grille-cloth assembly (whose frame is retained by plastic pegs on the cabinet) reveals the drivers, with the tweeter just above the woofer and slightly to its right. The wooden cabinet is veneered in wood-grain vinyl."
Stereo Review

Specifications
Frequency Response:  45 - 20,000 Hz
Senistivity: 94 dB
Impedance: 4 Ω
Dimensions (W x H x D): 10-1/2  x 16 x 7-1/4 inches
Weight: 15 puunds
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