Dayton H07E
Manufacturers Info
Brand: Dayton Audio
Model: H07E
Style: Elliptical
Coverage (H x V): 80 x 50
Minimum Frequency: 2200 Hz
Throat: 1"
Mounting Type: 1-3/8"-18 TPI
Dimensions: 5.875" W x 5.875" H x 3.75" D
Additional Notes:
Horn throat is too large (1.25"?) leading to a driver exit to throat mismatch which I have noticed on most of the Dayton Audio Horns and Waveguides.
Measurements:
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.
Horizontal:
Vertical:
Raw Horizontal Off Axis Response
Raw Vertical Off Axis Response
Horizontal Off Axis Response - Normalized to On Axis
Vertical Off Axis Response - Normalized to On Axis
Horizontal Polar Response - Normalized to On Axis
-6dB Coverage Angle Highlighted
Vertical Polar Response - Normalized to On Axis
-6dB Coverage Angle Highlighted
Final Notes:
Dispersion appears a little narrower then rated, I'd say closer to 60 H x 50 V looking at the 5-10k range below which it gradually widens . 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 the dispersion more even.
For reference look at the measurements of the Denovo DW-7ES which is a very similar design albeit slightly larger and with a correctly sized throat.