The indicated frequency on the SUB 225, 231, or Basshorn is not correct, IMO. Or at least, using the recommended setting reults in a less-than-satisfactory outcome.
For DUOs, I start at an indicated 140 (specs indicate 170).
For UNOs, I start at 190 (specs indicate 220).
I think the speaker simply rolls off higher/slower than the Sub amp indicates.
And because the slope is 2nd order, 12 dB/octave, the polarity of the SUBs re the horns may have to be inverted. You never know from installation to installation.
With a 1st order crossover (6dB/octave, the polarity is the same through the crossover region. With a 3rd order (18 dB/octave crossover, the polarity is inverted.
For TRIOs, more often than not the setting was in the region of 90 Hz.
Please note that I am NOT saying that these are the correct crossover frequencies. I AM saying that these are the correct INDICATED frequencies to use as a starting point. In fact, I hardly ever varied too much from them when all was said and done.
Bass level is whole 'nother ballgame, however.
Hope that helped.
Best regards.
Jim Smith
For DUOs, I start at an indicated 140 (specs indicate 170).
For UNOs, I start at 190 (specs indicate 220).
I think the speaker simply rolls off higher/slower than the Sub amp indicates.
And because the slope is 2nd order, 12 dB/octave, the polarity of the SUBs re the horns may have to be inverted. You never know from installation to installation.
With a 1st order crossover (6dB/octave, the polarity is the same through the crossover region. With a 3rd order (18 dB/octave crossover, the polarity is inverted.
For TRIOs, more often than not the setting was in the region of 90 Hz.
Please note that I am NOT saying that these are the correct crossover frequencies. I AM saying that these are the correct INDICATED frequencies to use as a starting point. In fact, I hardly ever varied too much from them when all was said and done.
Bass level is whole 'nother ballgame, however.
Hope that helped.
Best regards.
Jim Smith