The DR DIY Horn Speakers are the flagship models
of Bill Fitzmaurice Designs
All the DR series cabs provide output far exceeding most expectations.
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The DR280 is designed for main PA use for larger venues;
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The cabinet profile is trapezoidal, allowing vertical splaying of multiple cabinets in a line-array PA configuration with 8degree splay.
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You may build it with a sealed or vented driver chamber, frequency tuned.
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Melded array Piezo tweeters are a unique 120 deg wide dispersion hf solution for the DR280
Specifications
DR280 Compression Horn DIY PA Speaker Cabinet
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Sensitivity with DeltaLite 2512: 104db
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Dispersion with Piezo melded arrays: 120 degrees
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Dispersion with Diffraction Comp Horn: 100 Degrees
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Power handling: Driver and cab port dependent. See options in drop down box for driver selection
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Response: Long Port 60-20k, trade off lower power handling
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Small Port and Sealed: 80-20k
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Dimensions: 24.5in x 24in x 23in
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Weight: Approx 70-80lbs, dependent on driver and hardware.
Complete details and plans are available from
Kit Contents
DIY DR280 Compression Horn Deluxe Kit Includes:
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Proprietary parts designed by Bill Fitzmaurice, built by SpeakerHardware, including foam phase plugs and 4" reflectors.
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Eminence F151M-8 or 18soundND1090 Compression driver
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All crossover parts to spec, parts or prebuilt by SpeakerHardware.
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All parts are tested and confirmed by the SpeakerHardware shop to fit a DR280.
Response Graphs
DR280