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Electronic Equalization of Closed Box Loudspeakers

The ideal response of sealed box loudspeaker systems is characterized by the resonant frequency and the Q of the system. It is possible to alter the system characteristics by electronic means. The practical limitations which exist due to driver parameter variations and increased power requirements are examined. Computer analysis indicates that the overall equalized frequency and transient response can be seriously degraded by variations in driver Vas and Qts of as little as twenty percent. Results indicate that through judicious design decisions this technique may be successfully employed to improve the response of systems using drivers with realistic parameter spreads.

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