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-1 M loudspeakers

Miniature Speaker System

If you're looking for big, high-quality sound but don't have the space to accommodate a big system, the HS-1M Miniature Speaker System is sure to satisfy you.

Just 185 mm high (not much more than a large book), these speakers can be placed almost anywhere - and they're portable too.

Optional mounting brackets permit free-angle installation on walls, ceilings, on the new window shelf of your car for maximum space savings.

Maximum power handling capacity is is a mammoth 80 watts, and output sound pressure level is an impressive 85 dB. So even if you own a large power amplifier, there's no worry of damaging or distorting these speakers. They'll give you plenty of output from small amps as well.

 

Woofer

The HS-1M woofer is 4-inch cone-types employing carefully selected cone paper for maximum fidelity and strength. Remarkably smooth reproduction from powerful bas to rich midrange is assured thanks to the incorporation of special Hitachi Actuators, special low-distortion magnetic circuits in which the center pole is covered with a cooper short cap. This unique feature minimizes high-frequency distortion due to interaction between the voice coil and magnetic circuit, permitting only the purest of sounds to come through.

High power handling capacity is realized through the use of a thermo setting adhesive with superior thermal properties for the voice coil and bobbin.

 

Tweeter

Titanium-dome, an extremely light, but durable, metalic element is used for the HS-1M tweeter dome, providing uniform quality and low distortion. The small size of dome itself permits wide frequency response and excellent dispersion.

Accurate spatial imaging and resolution in the HS-1M is amazing for their size. This is due to careful design , and to the selection of 2,700 Hz for the crossover frequency.

 

Solid Diecast Aluminum Cabinet

The HS-1M enclosures are precision-processed diecast aluminum alloy. This virtually eliminates the possibility of box resonance, buzzes and rattles or air leaks. You get dynamic, resonant-free reproduction over the entire audible spectrum.

 


Specifications

Type:  2-way closed

Enclosure Volume:  1,6 liters

Speakers

Woofer :  4" (100 mm) Cone

Tweeter :  1" (25 mm ) Dome

Crossover Frequency:  2,700 Hz

Frequency Response:  50 Hz - 20,000 Hz (-15 dB)

Impedance:  8

Sound Pressure Level:  85 dB (1W/1m)

Maximum Input Power:  50 Watts; (80 Watts Music)

Enclosure Finish:  Black (painted)

Grill Cover:  Black

Dimensions (W x H x D):  4-5/8" x 2-1/4" x 4-3/4"

Weight:  2,5 kg (5 lb 8 oz)


 

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