FWIW, both tunings are so far above the driver's Fs and the cab is large enough that there's very little difference in Fb between the two (~55 Vs 53 Hz) and considering that in an acoustically small room it dominates down low, i.e. any typical HIFI/HT app, I'm betting that the difference is inaudible. A few of us prefer tunings from around Fs up to 32 Hz (Per Hasling has championed it on the joelist), though at one point we found 16 Hz to be a good tuning for corner loaded in a basement dedicated HIFI/HT before converting them to a two way with a 411 sub in the bottom.
GM
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