• HS-330 Speakers Woofer: 10" Sandwiched Metal Cone Gathered Edge
• Midrange: 2 1/2" Metal Cone
• Tweeter: 1 1/2" Metal Cone
• Frequency Response: 40-18KHz (±4dB)

An edge over paper cone speakers.

Hitachi's Metal Cone.

Hitachi has created the Metal Cone Speaker because we believe it is superior to speakers made with paper cones.

Paper cones are fine but they have a tendency to respond partially and not "wholeheartedly" to a signal coming from the amplifier.

In other words, as the voice coil pushes or pulls at the cone center, part of the cones respond correctly while other parts don't.

What is needed is something that can provide the optimum piston movement.

A material with free circumferential elongation and contraction.

The result of extensive research into all possible (and sometimes impossible) cone materials, Hitachi's engineers created the Metal Cone with perfect low resonance characteristics.

Light, rigid, it also possesses a "gathered edge" supporting the metal cone firmly without disturbing piston movement.

Altogether producing far less distortions than conventional paper cones.

It responds "wholeheartedly" and not partially, giving your music full power of expression.

You might even say it gives your music an edge.

HITACHI

When a company cares, it shows.

Audio Component Division, Hitachi Sales Corp. of America, 401 West Artesia Boulevard, Compton, CA 90220, (213) 537-8383, Extension 228

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(Source: Audio magazine, Oct. 1977)

Also see:

Hitachi's Class G amplifiers (ad, Jan. 1978)

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