Originally Posted by fbov
Check your data. HF and HO have the same sensitivity, but the HF digs deeper while the HO takes more power. The fact that your green curve extends lower in frequency indicates its the HF. If that's the case, then the difference is due to modeling at rated power, so the added 300W to the HO predicts a 2.5dB greater output, which is what you show. Model it at equal power and you should only see a difference in extension.
Originally Posted by LTD02
in 5 cubit feet tuned to 20hz, the strong motor of the -ho works a little better (red) than the -hf (gray). both at 500 watts.
My mistake. I missed the part about same-size boxes, an even stronger driver (pardon the pun) of LF response. Just put the HF in a 3x larger box, and everything lines up like it should.
- greater extension from the HF
- greater output from the HO (due to greater power applied).
Note that both drivers are yielding similar response curves, indicating that both are working in appropriate volumes. Shifts up/down and left/right are due to power handling and Fs, as expected. The comparison plots show HF in a small box, and HO with an EBS alignment as a result of common box parameters for two very different drivers.