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Manufacturers Info
Brand: Denovo
Model: DW-654S
Style: Elliptical
Coverage (H x V): -----
Minimum Frequency: 2500 Hz
Throat: 1"
Mounting Type: 1-3/8"-18 TPI
Dimensions: 6" W x 4.5" H x 3.75" D
Additional Notes:
This waveguide was sold on DIYSG several years back.
Required a 3mm spacer with the Celestion CDX1-1731 so the exit of the compression driver fit tight against the horn throat. The CDX1-1731 has shorter threads then many common screw on drivers.
Measurements:
Measurements:
Test Notes: Off axis and polars measured using a Celestion CDX1-1731 compression driver.
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 pattern of this waveguide appears to be roughly 80 H x 60 V. I would say the loss of pattern control starts around 3000hz horizontally and 4000hz vertically.
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