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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





Bell HF-2240


High Fidelity sound at moderate cost.
Bell Coaxial Loudspeaker - to hear it is proof conclusive that you can have.
Here is the long sought for ideal. A twelve-inch coaxial speaker in which top-flighy electronic engineering, acoustical designing, and the best of materials are combined, to satisfy the high fidelity enthusiast's ear, at a price he can afford.

In this Bell Loudspeaker an efficient low-frequency driver cone is teamed with a high frequency radiator, coaxially mounted, to reproduce both voice and music with unusual audio faithfulness. Cone and radiator are acoustically arranged for distribution of sound over a wide room area. From felt buffer mounting rim to its heavy Alnico Vmagnet, the Bell Model HF-22440 is engineered for output which  - measured by ear or instrument - is uniformly smooth and flat in the "presence" region.
This speaker has been carefully designed for use with any one of Bell's High Fidelity Amplifiers.

Specifications:
Rated Wattage:  30 watts
Voice Coil Diameter:  2"
Frequency Response:  38 - 13,600 kHz ±6 dB
Voice Coil Impedance:  8 Ω
Crossover Frequency:  2400 kHz
Magnet:  Alnico V
Weight:  1 lb
Overall Size:  12-1/8" diameter
Depth:  6-1/2"
Baffle Opening:  11" diameter
Shipping Weight:  9 lb
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