Modafferi Acoustical Systems

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Palm Beach Gardens, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Infinite slope loudspeaker crossover filter
- Patent number 7,085,389
- Issue date Aug 1, 2006
- Modafferi Acoustical Systems
- Richard T. Modafferi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio frequency power amplifier with improved circuit topology
- Patent number 4,918,394
- Issue date Apr 17, 1990
- Modafferi Acoustical Systems, Ltd.
- Richard Modafferi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multidriver loudspeaker apparatus with improved crossover filter ci...
- Patent number 4,771,466
- Issue date Sep 13, 1988
- Modafferi Acoustical Systems, Ltd.
- Richard Modafferi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase shift low frequency loudspeaker system
- Patent number 4,403,112
- Issue date Sep 6, 1983
- Modafferi Acoustical Systems, Ltd.
- Richard Modafferi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE