I have 300w amps into 4ohm so not a problem, and for hifi its full range, with no sub.
I didn’t use the svs own peq as no measuring equipment, but I guess good if you want sub only eq… If a way to switch on and off through signal.

But other features of the svs i did use, like high pass (ultra have variable setting here, and slope) and room compensation.

tinyurlis.gdv.gdv.htclck.ruulvis.netshrtco.detny.im