Applications

It is a fundamental restriction of conventional direct-radiator loudspeaker system design that enclosure volume, efficiency and low-frequency extension are interdependent. Small [5] shows that

mathematical equation explanation

Improving any one of these parameters forces a degradation of one or more of the others. ACE allows the loudspeaker designer to break this apparently immutable principle.

There are therefore three possible applications of ACE:

Reduce volume, maintain efficiency and extension;
Increase extension, maintain volume and efficiency;
Increase efficiency, maintain volume and extension (requires changes to drive unit).

We shall illustrate the use of ACE in the exploitation of (1) above.

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