I have not heard the Totem, but I did own the ProAc Response 2.5. They do go very low, but are inefficient, so they require a fairly powerful amp to get the best bass from them.
You may have read the review (see below link) in Stereophile which states "They were down only 3dB at 25Hz and –7dB at 20Hz. That's plenty of audible and palpable energy at 20Hz."
https://www.stereophile.com/floorloudspeakers/196proac/index.html
You may have read the review (see below link) in Stereophile which states "They were down only 3dB at 25Hz and –7dB at 20Hz. That's plenty of audible and palpable energy at 20Hz."
https://www.stereophile.com/floorloudspeakers/196proac/index.html