Vimberg Tonda Frequency Response

After doing some searching I can’t find any statement of the Tonda’s -3dB low end frequency. Anyone have reliable info on that spec? I’ll be in the market in the next year or so for a full range speaker which I would love to have a -3dB at 20Hz-ish or below. Frustrating when significant significant speaker manufacturers do not include basic specs to do some basic shopping. I’m not buying on specs alone, of course, but it certainly does help with whittling down the field.