Design of crossover network for high fidelity speaker system

DETAILED DESCRIPTION What is claimed is: 1.
A high fidelity speaker system in combination with a filter network for coupling an audio amplifier to said speaker system for generating high fidelity signals over a predetermined audio frequency spectrum; said speaker system including a woofer for high fidelity reproduction of signals in a low frequency band of said spectrum at the low end thereof, a tweeter for high fidelity reproduction of signals in a high frequency band of said spectrum at the high end thereof, and a midrange for high fidelity reproduction of signals in a mid-frequency band of signals falling between said high and low frequency bands; said filter network including input terminals for operative connection to the output of an audio amplifier, a first section of said network having an input connected across said terminals and an output having said woofer connected thereacross, a second section of said network having an input connected across said terminals and an output having said mid-range connected thereacross, and a third section of said network having an input connected across said terminals and an output having said tweeter connected thereacross, each of said sections including reactive element means connected in a predetermined circuit configuration, said reactive element means of said first section having a predetermined quantitative relationship with said relative element means of said second section, said reactive element means of said first and said second sections having a predetermined quantitative relationship with said reactive element means of said third section, and a lock capacitor means connected across said input terminals.
2.
A speaker system and filter network combination as set forth in claim 1 in which there is a predetermined quantitative relationship between the capacitive lock and the reactive element means of said first, second and third sections; said predetermined quantitative relationship being expressed by mathematical formulas which include a term F