Miguelón
Major Contributor
Erin's measurements at 20 Hz gave 80.7 dB with CEA-2010-A norm, around 84-85 dB total SPL.I doubt the new version is revolutionary compared to the old one, Hoffman's Iron Law is not going to change. The reality is it barely gets over the threshold of hearing at 20 Hz (~78 dB) and the distortion and group delay are massive. Time domain performance is also suboptimal as expected from a small sub like this. https://www.audiosciencereview.com/...s/i-measured-10-subwoofers.49042/post-1756733
I think that Hoffman Iron Rule has to be rewritten with opposed driver devices.