The measurements have started! See next post for index.
This will be a purely objective look at how the waveguides perform, Frequency Response, SPL, Off Axis Polar Response and Distortion. Due to the amount of waveguides and measurements needed it would likely be all but impossible to take all of them in one day so care will be taken to make sure the testing setup is properly configured (distances, angles, drive levels) each time.
Waveguides to be included in testing
SEOS-6, 8, 10, 12, 15,18 and 24
EOS-10, EOS-9?, EOS-8, EOS-6,
Denovo DW-854B, DW-774s, DW-62s, DW-654s, DW-7ES
And a few others.
Threaded waveguides will be tested with the DNA-150 along with some of the other small ones. Then most of the small and mid sized waveguides will be measured with the DNA-205 (comparable to the B&C DE10). Finally many of the mid and larger 1" waveguide will be testing using the DNA-360 (comparable to the B&C DE250). The SEOS-24 will be tested using the BMS 4594 1.4" coax.
The measurements will be done using REW (I am most familiar and comfortable with it and find it does everything I want it to) Microphone will be the Dayton UMM-6, amp will be a Audio source AMP-100, drive level will be set using a 60hz sine wave.