Ed posted these which as he added to the old PB1000 figures 1-1,5db for the 18-36hz octave and
3-4db for the more common 40hz-80hz octave where we see noticeable gains. This actually plays little louder than "old" PB2000 from 50hz upwards, but the larger cab and more power still rules at the 18-36hz region.
20hz - 101db
25hz - 104db
31,5hz - 105db
40hz - 110db
50hz - 112,5db
63hz - 112db
80hz - 111db
He also said. " PB1000 was always a subwoofer with little punch (kick bass), but strong at 20hz. PB1000 Pro has an upgrade at 50-100hz. So it will be more punchy now. "
There is gains in whole range and to compare XTZ 12.17 Edgee fully they would need to show measurements done in that one port mode, cause the way they have done it was using different port modes for different octaves, deep bass (left open), mid-bass (right open) and both open with eq2 (upper bass = useless mode for movies). In real life situation you would use only one mode through movie and usually either the left open or sealed cause the other ones are more or less usefull in normal situation.