I'm happy to report that it measures very much as predicted. Put the microphone at the edge of horn mouth and ran Frequency Response plots, same as I did with the FH-1 bin a while back. The FH-1 is similar to a Belle Klipsch/LaScala bass bin, but larger, more ruggedly built (for PA) and ugly as sin.
K402/1133 combo at about 300-320 Hz. I strongly believe in bi-amping or -tri-amping with the the Mini DSP or some other active Xover for the Quarter Pie because any mid/tweeter treble se