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

Hitachi HS-530

 Hitachi presents Metal Cone Speakers and Gathered Edge Woofer, a tottaly new approach to loudspeaaker design.
Paper has always been the traditional material for even the finest speaker systems. Unfortunately, a paper cone doesn't move evenly over its entire surface, which results in uneven frequency and transient response - or "breakup distortion".
 So Hitachi engineers overcame that problem by using metal cone diaphragms for the woofer, mid-range and tweeter combined with a peak control circuit which eliminates any possibility of cone resonance affecting sound quality.
Then, a patented Gathered Edge suspension design was applied to the woofer which prevents lateral vibrations causing distortion, while at the same time, allowing a greater dynamic bass response.
We believe this unique pair of performers are the most exciting, lifelike, distortion-free speakers we've ever heard.  More important, we think you'll agree.
HS 530
Type:  3-way, 3-speaker bookshelf type
Woofer L-251: 250 mm Sandwiched Metal Cone Gathered Edge
Midrange M-55 :  55 mm Metal Cone
Tweeter H-22 :  22 mm Metal Cone
Max. Input (Peak):  120 Watts
Frequency Response:  35 - 20,000 Hz
Sensitivity:  82 dB (2,83 V/1m)
Crossover:  900 Hz;  3,000 Hz
Impedance:  6 Ω
Enclosure Volume:  40 l
Dimensions ( H x W x D):  630 x 350 x 270 mm

Weight:  17,8 kg

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