Brand: Dayton Audio
Coverage: 75 Degrees
Minimum Frequency: 2200 Hz
Mounting Type: 1-3/8"-18 TPI
Dimensions: 8" Round x 4.75" Deep
Symmetrical waveguide, only tested on a single axis.
Horn throat is too large (1.25"?) leading to a driver exit to throat mismatch which I have noticed on most of the Dayton Horns/waveguides.
The CDX1-1731 required use of a 2mm spacer to reach the throat, the spacer is white so you can clearly see the difference between the 1" exit and the horn's throat diameter.
Test Notes: Off axis and polars measured using a Celestion CDX1-1731
Mic distance 1m, measurements gated at 5ms and are smoothed at 1/48 Octave.
Raw Off Axis Response
Horizontal Off Axis Response - Normalized to On Axis
Polar Response - Normalized to On Axis
-6dB Coverage Angle Highlighted
Dispersion of this waveguide appears to roughly match the rated 75 degrees. The throat diameter mismatch greatly hampers performance in the top octave. I suspect if the throat was correctly sized the response would be smoother and dispersion more even in the top octave and that would make this a fairly decent waveguide.