A Loudspeaker Designed Utilizing a Sixth Order Butterworth Response Characteristic
A system of .025 M/3 internal volume capable of radiating in excess of 1/16 acoustic watt at 32.7 Hz in pairs is described. The complete unit consists of a speaker system together with a complimentary filter of the type described by A.N. Thiele. Several unusual features including a vest substitute appreciably larger than the main radiator are described.
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