Quote Originally Posted by Florian
Some people also believe that there is not much info below 40Hz


Frequency response: 36Hz-20kHz ±1dB

There is your problem, these will not play very low. Considering that you are in a normal room under normal conditions (they dont measure them in a real enviroment) you wont get that deeep bass. The speaker is not designed for that. :-)
I think you had better learn more about the PSB Stratus Gold-i before making such statements. D. B. Keele reviewed it for Audio magazine some years ago (I have this at home) and found it had a very high output capability in the deep bass even down to 20 Hz. If you want to denigrate the bass response, you have truly chosen the wrong speaker!

John Atkinson measured the Stratus Gold-i's performance for Stereophile and it includes a "real world". measurement in his room--no lack of bass there even down to 20 Hz.
He does not measureme maximum output levels as Keele did.

This speaker does have a minimum impedance below 3 ohms around 100 Hz which might be an issue with a bridged NAD amp.

His room is almost square so this may cause a hefty room around 30 Hz, but below that he would get room gain. Above that, the bass response would have a number ioof peaks and dips and he probably could get a better subjective response by experimenting with speaker placement and listener position.