AcknowledgmentsPreface Crossover Basics How Loudspeakers Work Crossover Requirements Crossover Types Notch Crossovers Subtractive Crossovers Lowpass and Highpass Filter Characteristics Designing Lowpass Filters: Sallen & Key Designing Highpass Filters Other Lowpass and Highpass Filters Lowpass and Highpass Filter Performance Bandpass and Notch Filters Time-Delay Filters Equalisation Passive Components for Active Crossovers Opamps for Active Crossovers Active Crossover System Design Subwoofer CrossoversMotional Feedback LoudspeakersLine InputsLine OutputsPower Supply DesignAn Active Crossover Design Appendix 1: Crossover Design ReferencesAppendix 2: US Crossover PatentsAppendix 3: Crossover and Loudspeaker Articles in Wireless World/Electronics WorldAppendix 4: Loudspeaker design referencesAppendix 5: Component Series E3 to 396Index